38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* Helpers for SMS/GSM 04.11 */
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/*
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* (C) 2014 by Holger Hans Peter Freyther
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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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*/
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#include <openbsc/gsm_data.h>
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#include <openbsc/gsm_04_11.h>
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uint8_t sms_next_rp_msg_ref(struct gsm_subscriber_connection *conn)
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{
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const uint8_t rp_msg_ref = conn->next_rp_ref;
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/*
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* This should wrap as the valid range is 0 to 255. We only
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* transfer one SMS at a time so we don't need to check if
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* the id has been already assigned.
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*/
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conn->next_rp_ref += 1;
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return rp_msg_ref;
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}
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