Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/*******************************************************************************
|
|
|
|
Eurecom OpenAirInterface
|
|
Copyright(c) 1999 - 2012 Eurecom
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms and conditions of the GNU General Public License,
|
|
version 2, as published by the Free Software Foundation.
|
|
|
|
This program is distributed in the hope 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
|
|
this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
The full GNU General Public License is included in this distribution in
|
|
the file called "COPYING".
|
|
|
|
Contact Information
|
|
Openair Admin: openair_admin@eurecom.fr
|
|
Openair Tech : openair_tech@eurecom.fr
|
|
Forums : http://forums.eurecom.fr/openairinterface
|
|
Address : EURECOM, Campus SophiaTech, 450 Route des Chappes
|
|
06410 Biot FRANCE
|
|
|
|
*******************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
|
|
#include "tree.h"
|
|
|
|
#include "intertask_interface.h"
|
|
#include "sgw_lite_defs.h"
|
|
#include "sgw_lite_context_manager.h"
|
|
|
|
RB_HEAD(mme_sgw_tunnel_tree, mme_sgw_tunnel_s) mme_sgw_tunnel_map;
|
|
|
|
//==============================================================================
|
|
// LOCAL function prototypes
|
|
//==============================================================================
|
|
static inline int32_t sgw_lite_compare_teid(
|
|
struct mme_sgw_tunnel_s *a, struct mme_sgw_tunnel_s *b);
|
|
|
|
RB_PROTOTYPE(mme_sgw_tunnel_tree, mme_sgw_tunnel_s, node, sgw_lite_compare_teid)
|
|
|
|
static inline int32_t sgw_lite_compare_teid(
|
|
struct mme_sgw_tunnel_s *a, struct mme_sgw_tunnel_s *b) {
|
|
|
|
if(a->remote_teid > b->remote_teid)
|
|
return 1;
|
|
if(a->remote_teid < b->remote_teid)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
RB_GENERATE(mme_sgw_tunnel_tree, mme_sgw_tunnel_s, node, sgw_lite_compare_teid)
|
|
|
|
mme_sgw_tunnel_t* sgw_lite_cm_create_s11_tunnel(uint32_t remote_teid) {
|
|
|
|
mme_sgw_tunnel_t *collision_p;
|
|
mme_sgw_tunnel_t *new_tunnel;
|
|
|
|
new_tunnel = malloc(sizeof(mme_sgw_tunnel_t));
|
|
|
|
if (new_tunnel == NULL) {
|
|
/* Malloc failed, may be ENOMEM error */
|
|
SGW_ERROR("Failed to create tunnel for remote_teid %u\n", remote_teid);
|
|
return NULL;
|
|
}
|
|
|
|
new_tunnel->remote_teid = remote_teid;
|
|
|
|
/* Trying to insert the new tunnel into the tree.
|
|
* If collision_p is not NULL (0), it means tunnel is already present.
|
|
*/
|
|
collision_p = RB_INSERT(mme_sgw_tunnel_tree, &mme_sgw_tunnel_map, new_tunnel);
|
|
|
|
if (collision_p) {
|
|
SGW_WARNING("This TEID already exists: %u\n", remote_teid);
|
|
free(new_tunnel);
|
|
new_tunnel = NULL;
|
|
}
|
|
|
|
return new_tunnel;
|
|
}
|
|
|
|
int mme_sgw_remove_s11_tunnel(mme_sgw_tunnel_t* tunnel) {
|
|
|
|
mme_sgw_tunnel_t *temp;
|
|
|
|
if (tunnel == NULL)
|
|
return -1;
|
|
|
|
temp = RB_REMOVE(mme_sgw_tunnel_tree, &mme_sgw_tunnel_map, tunnel);
|
|
if (tunnel != temp)
|
|
return -1;
|
|
|
|
free(temp);
|
|
return 0;
|
|
}
|