| /* |
| * (C) 2014 by Harald Welte <laforge@gnumonks.org> |
| * All Rights Reserved |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * This program 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 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program 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 this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <osmocom/core/byteswap.h> |
| #include <osmocom/core/talloc.h> |
| #include <osmocom/gsm/protocol/gsm_03_41.h> |
| |
| /*! \addtogroup sms |
| * @{ |
| * \file gsm0341.c |
| */ |
| |
| /*! Encode a 3GPP TS 03.41 SMS-CB message |
| * \param[in] ctx talloc allocation context |
| * \param[in] geo_scope Geographic Scope |
| * \param[in] msg_code Message Code |
| * \param[in] update Is this an update? |
| * \param[in] msg_id Message ID |
| * \param[in] dcs Data Coding Scheme |
| * \param[in] page_total Total number of pages |
| * \param[in] page_cur Current Page (up to \a page_total) |
| * \param[in] data Message data (copied 1:1) |
| * \param[in] len Length of \a data in bytes (up to 88) |
| * \returns callee-allocated TS 03.41 message with encoded data */ |
| struct gsm341_ms_message * |
| gsm0341_build_msg(void *ctx, uint8_t geo_scope, uint8_t msg_code, |
| uint8_t update, uint16_t msg_id, uint8_t dcs, |
| uint8_t page_total, uint8_t page_cur, |
| uint8_t *data, uint8_t len) |
| { |
| struct gsm341_ms_message *cbmsg; |
| |
| msg_id = osmo_htons(msg_id); |
| |
| if (len > 88) |
| return NULL; |
| |
| cbmsg = talloc_zero_size(ctx, sizeof(*cbmsg)+len); |
| if (!cbmsg) |
| return NULL; |
| |
| cbmsg->serial.code_hi = (msg_code >> 4) & 0xF; |
| cbmsg->serial.gs = geo_scope; |
| cbmsg->serial.update = update; |
| cbmsg->serial.code_lo = msg_code & 0xF; |
| cbmsg->msg_id = msg_id; |
| cbmsg->dcs.group = dcs >> 4; |
| cbmsg->dcs.language = dcs & 0xF; |
| cbmsg->page.total = page_total; |
| cbmsg->page.current = page_cur; |
| memcpy(cbmsg->data, data, len); |
| |
| return cbmsg; |
| } |
| |
| /*! @} */ |