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openairinterface5g/openair3/SCTP/sctp_eNB_defs.h
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2015-10-06 16:53:42 +00:00

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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface 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 3 of the License, or
(at your option) any later version.
OpenAirInterface 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 OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
*******************************************************************************/
#include "queue.h"
#ifndef SCTP_ENB_DEFS_H_
#define SCTP_ENB_DEFS_H_
typedef struct sctp_queue_item_s {
/* Pair of stream on which we received this packet */
uint16_t local_stream;
/* Remote port */
uint16_t remote_port;
/* Remote address */
uint32_t remote_addr;
uint32_t assoc_id;
/* PPID used for the packet */
uint32_t ppid;
/* Buffer and buffer length for the packet */
uint32_t length;
uint8_t *buffer;
/* queue.h internal data */
TAILQ_ENTRY(sctp_queue_item_s) entry;
} sctp_queue_item_t;
typedef struct {
/* Socket descriptor used to send/recv data on SCTP */
int sd;
/* Unique SCTP association ID (Local to host), used to distinguish
* associations between MME and eNB.
*/
int32_t assoc_id;
/* Current remote port used for transmission */
uint16_t remote_port;
/* Remote IP addresses */
struct sockaddr *remote_ip_addresses;
int nb_remote_addresses;
/* Local port to use for transmission (dynamically allocated) */
uint16_t local_port;
/* Local IP address to use for transmission */
struct sockaddr *local_ip_addr;
int nb_local_addresses;
/* Number of input/output streams used over this association.
* The number is negotiated between peers at connect and the minimum value
* of both peers is used over the association.
*/
uint16_t instreams;
uint16_t outstreams;
/* Queue of messages received on SCTP. Messages will be processed later by
* upper layer. This will allow data prioritization and data de-fragmentation
* (if any on interface).
*/
TAILQ_HEAD(sctp_queue_s, sctp_queue_item_s) sctp_queue;
/* Queue size in bytes (may be used to limit eNB processing) */
uint32_t queue_size;
/* Number of items in the queue */
uint32_t queue_length;
} sctp_data_t;
#endif /* SCTP_ENB_DEFS_H_ */