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libosmocore/include/osmocom/gsm/cbsp.h

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#pragma once
#include <stdint.h>
#include <osmocom/core/linuxlist.h>
#include <osmocom/gsm/protocol/gsm_48_049.h>
#include <osmocom/gsm/gsm0808_utils.h>
/* Definitions for parsed / abstract representation of messages in the
* CBSP (Cell Broadcast Service Protocol, 3GPP TS 48.049). Data here is *not* formatted
* like the on-the-wire format. Any similarities are coincidential ;) */
/* Copyright (C) 2019 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.
*/
/* Decoded 8.2.3 Message Content */
struct osmo_cbsp_content {
struct llist_head list;
uint8_t user_len;
uint8_t data[82];
};
/* Decoded Entry in a 8.2.6 Cell List */
struct osmo_cbsp_cell_ent {
struct llist_head list; /* entry in osmo_cbsp_cell_list.list */
union gsm0808_cell_id_u cell_id;
};
struct osmo_cbsp_cell_list {
enum CELL_IDENT id_discr;
struct llist_head list; /* list of osmo_cbsp_cell_ent */
};
/* Decoded Entry in a 8.2.10 Completed List */
struct osmo_cbsp_num_compl_ent {
struct llist_head list; /* entry in osmo_cbsp_num_compl_list.list */
union gsm0808_cell_id_u cell_id;
uint16_t num_compl;
uint8_t num_bcast_info;
};
struct osmo_cbsp_num_compl_list {
enum CELL_IDENT id_discr;
struct llist_head list; /* list of osmo_cbsp_num_compl_ent */
};
/* Decoded Entry in a 8.2.12 Radio Resource Loading List */
struct osmo_cbsp_loading_ent {
struct llist_head list; /* entry in osmo_cbsp_loading_list */
union gsm0808_cell_id_u cell_id;
uint8_t load[2];
};
struct osmo_cbsp_loading_list {
enum CELL_IDENT id_discr;
struct llist_head list; /* list of osmo_cbsp_loading_ent */
};
/* Decoded Entry in a 8.2.11 Failure List */
struct osmo_cbsp_fail_ent {
struct llist_head list; /* entry in a fail_list below */
enum CELL_IDENT id_discr;
union gsm0808_cell_id_u cell_id;
uint8_t cause;
};
/* 8.1.3.1 */
struct osmo_cbsp_write_replace {
uint16_t msg_id; /* 8.2.16 M */
uint16_t new_serial_nr; /* 8.2.5 M */
uint16_t *old_serial_nr; /* 8.2.4 */
struct osmo_cbsp_cell_list cell_list;
bool is_cbs;
union {
struct {
enum cbsp_channel_ind channel_ind;
enum cbsp_category category;
uint16_t rep_period;
uint16_t num_bcast_req;
/* num_of_pages implicit as llist_count(msg_content) */
uint8_t dcs;
struct llist_head msg_content;
} cbs;
struct {
uint8_t indicator;
uint16_t warning_type;
uint8_t warning_sec_info[50];
uint32_t warning_period; /* in seconds; 0xffffffff = unlimited */
} emergency;
} u;
};
/* 8.1.3.2 */
struct osmo_cbsp_write_replace_complete {
uint16_t msg_id;
uint16_t new_serial_nr;
uint16_t *old_serial_nr;
struct osmo_cbsp_num_compl_list num_compl_list;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind *channel_ind;
};
/* 8.1.3.3 */
struct osmo_cbsp_write_replace_failure {
uint16_t msg_id;
uint16_t new_serial_nr;
uint16_t *old_serial_nr;
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
struct osmo_cbsp_num_compl_list num_compl_list;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind *channel_ind;
};
/* 8.1.3.4 */
struct osmo_cbsp_kill {
uint16_t msg_id;
uint16_t old_serial_nr;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind *channel_ind;
};
/* 8.1.3.5 */
struct osmo_cbsp_kill_complete {
uint16_t msg_id;
uint16_t old_serial_nr;
struct osmo_cbsp_num_compl_list num_compl_list;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind *channel_ind;
};
/* 8.1.3.6 */
struct osmo_cbsp_kill_failure {
uint16_t msg_id;
uint16_t old_serial_nr;
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
struct osmo_cbsp_num_compl_list num_compl_list;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind *channel_ind;
};
/* 8.1.3.7 */
struct osmo_cbsp_load_query {
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind channel_ind;
};
/* 8.1.3.8 */
struct osmo_cbsp_load_query_complete {
struct osmo_cbsp_loading_list loading_list;
enum cbsp_channel_ind channel_ind;
};
/* 8.1.3.9 */
struct osmo_cbsp_load_query_failure {
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
enum cbsp_channel_ind channel_ind;
struct osmo_cbsp_loading_list loading_list;
};
/* 8.1.3.10 */
struct osmo_cbsp_msg_status_query {
uint16_t msg_id;
uint16_t old_serial_nr;
struct osmo_cbsp_cell_list cell_list;
enum cbsp_channel_ind channel_ind;
};
/* 8.1.3.11 */
struct osmo_cbsp_msg_status_query_complete {
uint16_t msg_id;
uint16_t old_serial_nr;
struct osmo_cbsp_num_compl_list num_compl_list;
enum cbsp_channel_ind channel_ind;
};
/* 8.1.3.12 */
struct osmo_cbsp_msg_status_query_failure {
uint16_t msg_id;
uint16_t old_serial_nr;
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
enum cbsp_channel_ind channel_ind;
struct osmo_cbsp_num_compl_list num_compl_list;
};
/* 8.1.3.16 */
struct osmo_cbsp_reset {
struct osmo_cbsp_cell_list cell_list;
};
/* 8.1.3.17 */
struct osmo_cbsp_reset_complete {
struct osmo_cbsp_cell_list cell_list;
};
/* 8.1.3.18 */
struct osmo_cbsp_reset_failure {
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
struct osmo_cbsp_cell_list cell_list;
};
/* 8.1.3.18a */
struct osmo_cbsp_keep_alive {
uint8_t repetition_period;
};
/* 8.1.3.18b */
struct osmo_cbsp_keep_alive_complete {
};
/* 8.1.3.19 */
struct osmo_cbsp_restart {
struct osmo_cbsp_cell_list cell_list;
uint8_t bcast_msg_type;
uint8_t recovery_ind;
};
/* 8.1.3.20 */
struct osmo_cbsp_failure {
struct llist_head fail_list; /* list of osmo_cbsp_fail_ent */
uint8_t bcast_msg_type;
};
/* 8.1.3.21 */
struct osmo_cbsp_error_ind {
enum cbsp_cell_id_cause cause;
uint16_t *msg_id;
uint16_t *new_serial_nr;
uint16_t *old_serial_nr;
enum cbsp_channel_ind *channel_ind;
};
/* decoded CBSP message */
struct osmo_cbsp_decoded {
enum cbsp_msg_type msg_type;
union {
struct osmo_cbsp_write_replace write_replace;
struct osmo_cbsp_write_replace_complete write_replace_compl;
struct osmo_cbsp_write_replace_failure write_replace_fail;
struct osmo_cbsp_kill kill;
struct osmo_cbsp_kill_complete kill_compl;
struct osmo_cbsp_kill_failure kill_fail;
struct osmo_cbsp_load_query load_query;
struct osmo_cbsp_load_query_complete load_query_compl;
struct osmo_cbsp_load_query_failure load_query_fail;
struct osmo_cbsp_msg_status_query msg_status_query;
struct osmo_cbsp_msg_status_query_complete msg_status_query_compl;
struct osmo_cbsp_msg_status_query_failure msg_status_query_fail;
/* TODO: set DRX */
struct osmo_cbsp_reset reset;
struct osmo_cbsp_reset_complete reset_compl;
struct osmo_cbsp_reset_failure reset_fail;
struct osmo_cbsp_restart restart;
struct osmo_cbsp_failure failure;
struct osmo_cbsp_error_ind error_ind;
struct osmo_cbsp_keep_alive keep_alive;
struct osmo_cbsp_keep_alive_complete keep_alive_compl;
} u;
};
extern const __thread char *osmo_cbsp_errstr;
struct msgb *osmo_cbsp_msgb_alloc(void *ctx, const char *name);
struct msgb *osmo_cbsp_encode(void *ctx, const struct osmo_cbsp_decoded *in);
struct osmo_cbsp_decoded *osmo_cbsp_decode(void *ctx, struct msgb *in);
void osmo_cbsp_init_struct(struct osmo_cbsp_decoded *cbsp, enum cbsp_msg_type msg_type);
struct osmo_cbsp_decoded *osmo_cbsp_decoded_alloc(void *ctx, enum cbsp_msg_type msg_type);
int osmo_cbsp_recv_buffered(void *ctx, int fd, struct msgb **rmsg, struct msgb **tmp_msg);
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