Harald Welte | 783d073 | 2014-12-29 17:09:11 +0100 | [diff] [blame] | 1 | /* |
| 2 | * (C) 2014 by Harald Welte <laforge@gnumonks.org> |
| 3 | * All Rights Reserved |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | #include <stdint.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | |
Harald Welte | 95871da | 2017-05-15 12:11:36 +0200 | [diff] [blame] | 26 | #include <osmocom/core/byteswap.h> |
Harald Welte | 783d073 | 2014-12-29 17:09:11 +0100 | [diff] [blame] | 27 | #include <osmocom/core/talloc.h> |
| 28 | #include <osmocom/gsm/protocol/gsm_03_41.h> |
| 29 | |
| 30 | struct gsm341_ms_message * |
| 31 | gsm0341_build_msg(void *ctx, uint8_t geo_scope, uint8_t msg_code, |
| 32 | uint8_t update, uint16_t msg_id, uint8_t dcs, |
| 33 | uint8_t page_total, uint8_t page_cur, |
| 34 | uint8_t *data, uint8_t len) |
| 35 | { |
| 36 | struct gsm341_ms_message *cbmsg; |
| 37 | |
Harald Welte | 95871da | 2017-05-15 12:11:36 +0200 | [diff] [blame] | 38 | msg_id = osmo_htons(msg_id); |
Harald Welte | 63b156a | 2014-12-30 00:43:32 +0100 | [diff] [blame] | 39 | |
Harald Welte | 783d073 | 2014-12-29 17:09:11 +0100 | [diff] [blame] | 40 | if (len > 88) |
| 41 | return NULL; |
| 42 | |
| 43 | cbmsg = talloc_zero_size(ctx, sizeof(*cbmsg)+len); |
| 44 | if (!cbmsg) |
| 45 | return NULL; |
| 46 | |
| 47 | cbmsg->serial.code_hi = (msg_code >> 4) & 0xF; |
| 48 | cbmsg->serial.gs = geo_scope; |
| 49 | cbmsg->serial.update = update; |
| 50 | cbmsg->serial.code_lo = msg_code & 0xF; |
| 51 | cbmsg->msg_id = msg_id; |
| 52 | cbmsg->dcs.group = dcs >> 4; |
| 53 | cbmsg->dcs.language = dcs & 0xF; |
| 54 | cbmsg->page.total = page_total; |
| 55 | cbmsg->page.current = page_cur; |
| 56 | memcpy(cbmsg->data, data, len); |
| 57 | |
| 58 | return cbmsg; |
| 59 | } |