| /* Filter/overlay data rates for CSD, across MS, RAN and CN limitations */ |
| /* |
| * (C) 2023 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de> |
| * All Rights Reserved |
| * |
| * Author: Oliver Smith |
| * |
| * 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. |
| */ |
| #pragma once |
| |
| #include <osmocom/gsm/gsm_utils.h> |
| #include <osmocom/gsm/mncc.h> |
| #include <osmocom/mgcp_client/mgcp_client.h> |
| |
| #include <osmocom/msc/csd_bs.h> |
| #include <osmocom/msc/sdp_msg.h> |
| |
| /* Combine various data rate selections to obtain a resulting set allowed by |
| * all of them. Members reflect the different entities/stages that select data |
| * rates in CSD. Call csd_filter_run() and obtain the resulting set in |
| * csd_filter.result. */ |
| struct csd_filter { |
| /* The fixed set available on the RAN type, per definition. */ |
| struct csd_bs_list ran; |
| /* The services advertised by the MS Bearer Capabilities */ |
| struct csd_bs_list ms; |
| /* If known, the set the current RAN cell allows / has available. This |
| * may not be available if the BSC does not issue this information |
| * early enough. Should be ignored if empty. */ |
| struct csd_bs_list bss; |
| |
| /* After a channel was assigned, this reflects the chosen BS. */ |
| enum csd_bs assignment; |
| }; |
| |
| void csd_filter_set_ran(struct csd_filter *filter, enum osmo_rat_type ran_type); |
| int csd_filter_run(struct csd_filter *filter, struct sdp_msg *result, const struct sdp_msg *remote); |
| |
| int csd_filter_to_str_buf(char *buf, size_t buflen, const struct csd_filter *filter, |
| const struct sdp_msg *result, const struct sdp_msg *remote); |
| char *csd_filter_to_str_c(void *ctx, const struct csd_filter *filter, const struct sdp_msg *result, const struct sdp_msg *remote); |
| const char *csd_filter_to_str(const struct csd_filter *filter, const struct sdp_msg *result, const struct sdp_msg *remote); |