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/*
* Ouroboros - Copyright (C) 2016 - 2017
*
* RIB manager of the IPC Process
*
* Dimitri Staessens <dimitri.staessens@ugent.be>
* Sander Vrijders <sander.vrijders@ugent.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define OUROBOROS_PREFIX "rib-manager"
#include <ouroboros/config.h>
#include <ouroboros/logs.h>
#include <ouroboros/cdap.h>
#include <ouroboros/list.h>
#include <ouroboros/time_utils.h>
#include <ouroboros/ipcp-dev.h>
#include <ouroboros/errno.h>
#include <ouroboros/dev.h>
#include <ouroboros/fqueue.h>
#include <ouroboros/rib.h>
#include "ae.h"
#include "gam.h"
#include "ribconfig.h"
#include "ribmgr.h"
#include <stdlib.h>
#include <pthread.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
struct {
flow_set_t * fs;
fqueue_t * fq;
struct gam * gam;
struct nbs * nbs;
struct ae * ae;
struct nb_notifier nb_notifier;
} ribmgr;
static int ribmgr_neighbor_event(enum nb_event event,
struct conn conn)
{
/* We are only interested in neighbors being added and removed. */
switch (event) {
case NEIGHBOR_ADDED:
flow_set_add(ribmgr.fs, conn.flow_info.fd);
break;
case NEIGHBOR_REMOVED:
flow_set_del(ribmgr.fs, conn.flow_info.fd);
break;
default:
break;
}
return 0;
}
int ribmgr_init(void)
{
enum pol_gam pg;
struct conn_info info;
strcpy(info.ae_name, MGMT_AE);
strcpy(info.protocol, CDAP_PROTO);
info.pref_version = 1;
info.pref_syntax = PROTO_GPB;
ribmgr.nbs = nbs_create();
if (ribmgr.nbs == NULL) {
log_err("Failed to create neighbors.");
return -1;
}
ribmgr.ae = connmgr_ae_create(info);
if (ribmgr.ae == NULL) {
log_err("Failed to create AE struct.");
nbs_destroy(ribmgr.nbs);
return -1;
}
if (rib_read(BOOT_PATH "/rm/gam/type", &pg, sizeof(pg))
!= sizeof(pg)) {
log_err("Failed to read policy for ribmgr gam.");
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
return -1;
}
ribmgr.gam = gam_create(pg, ribmgr.nbs, ribmgr.ae);
if (ribmgr.gam == NULL) {
log_err("Failed to create gam.");
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
return -1;
}
ribmgr.fs = flow_set_create();
if (ribmgr.fs == NULL) {
log_err("Failed to create flow set.");
gam_destroy(ribmgr.gam);
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
return -1;
}
ribmgr.fq = fqueue_create();
if (ribmgr.fq == NULL) {
log_err("Failed to create fq.");
flow_set_destroy(ribmgr.fs);
gam_destroy(ribmgr.gam);
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
return -1;
}
ribmgr.nb_notifier.notify_call = ribmgr_neighbor_event;
if (nbs_reg_notifier(ribmgr.nbs, &ribmgr.nb_notifier)) {
log_err("Failed to register notifier.");
fqueue_destroy(ribmgr.fq);
flow_set_destroy(ribmgr.fs);
gam_destroy(ribmgr.gam);
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
return -1;
}
return 0;
}
void ribmgr_fini(void)
{
nbs_unreg_notifier(ribmgr.nbs, &ribmgr.nb_notifier);
flow_set_destroy(ribmgr.fs);
fqueue_destroy(ribmgr.fq);
gam_destroy(ribmgr.gam);
connmgr_ae_destroy(ribmgr.ae);
nbs_destroy(ribmgr.nbs);
}
int ribmgr_disseminate(char * path,
enum diss_target target,
enum diss_freq freq,
size_t delay)
{
(void) path;
(void) target;
(void) freq;
(void) delay;
return 0;
}
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