86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/* Run M2UA over SCTP here */
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/* (C) 2011 by Holger Hans Peter Freyther <zecke@selfish.org>
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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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#ifndef sctp_m2ua_h
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#define sctp_m2ua_h
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#include "mtp_data.h"
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#include <osmocom/m2ua/m2ua_msg.h>
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#include <osmocom/core/write_queue.h>
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#include <netinet/in.h>
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#include <netinet/sctp.h>
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struct sctp_m2ua_conn;
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struct mtp_link;
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/**
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* Drive M2UA over a SCTP link. Right now we have no
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* real concept for failover and such for the link.
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*/
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struct sctp_m2ua_transport {
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int started;
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struct llist_head conns;
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struct osmo_fd bsc;
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struct llist_head links;
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};
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struct mtp_m2ua_link {
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struct mtp_link *base;
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/*
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* The state of the link, who is using it and
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* what will happen to it. For load-sharing we
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* will need to turn this into a list.
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*/
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int active;
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int asp_active;
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int established;
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struct sctp_m2ua_conn *conn;
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int link_index;
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struct llist_head entry;
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struct sctp_m2ua_transport *transport;
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char *as;
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};
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/*
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* One ASP that can be active or such.
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*/
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struct sctp_m2ua_conn {
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struct llist_head entry;
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uint8_t asp_ident[4];
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int asp_up;
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struct osmo_wqueue queue;
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struct sctp_m2ua_transport *trans;
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};
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struct sctp_m2ua_transport *sctp_m2ua_transp_create(struct bsc_data *bsc);
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int sctp_m2ua_transport_bind(struct sctp_m2ua_transport *, const char *ip, int port);
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struct mtp_m2ua_link *mtp_m2ua_link_create(struct sctp_m2ua_transport *transport,
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struct mtp_link_set *);
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struct mtp_m2ua_link *mtp_m2ua_link_init(struct mtp_link *link);
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int sctp_m2ua_conn_count(struct sctp_m2ua_transport *tran);
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#endif
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