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/*
* Ouroboros - Copyright (C) 2016 - 2021
*
* PDU Forwarding Function
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* 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., http://www.fsf.org/about/contact/.
*/
#define OUROBOROS_PREFIX "pff"
#include <ouroboros/errno.h>
#include <ouroboros/logs.h>
#include "pff.h"
#include "pff/pol.h"
struct pff {
struct pff_ops * ops;
struct pff_i * pff_i;
};
struct pff * pff_create(enum pol_pff pol)
{
struct pff * pff;
pff = malloc(sizeof(*pff));
if (pff == NULL)
return NULL;
switch (pol) {
case PFF_ALTERNATE:
log_dbg("Using alternate PFF policy.");
pff->ops = &alternate_pff_ops;
break;
case PFF_SIMPLE:
log_dbg("Using simple PFF policy.");
pff->ops = &simple_pff_ops;
break;
case PFF_MULTIPATH:
log_dbg("Using multipath PFF policy.");
pff->ops = &multipath_pff_ops;
break;
default:
goto err;
}
pff->pff_i = pff->ops->create();
if (pff->pff_i == NULL)
goto err;
return pff;
err:
free(pff);
return NULL;
}
void pff_destroy(struct pff * pff)
{
pff->ops->destroy(pff->pff_i);
free(pff);
}
void pff_lock(struct pff * pff)
{
return pff->ops->lock(pff->pff_i);
}
void pff_unlock(struct pff * pff)
{
return pff->ops->unlock(pff->pff_i);
}
int pff_add(struct pff * pff,
uint64_t addr,
int * fd,
size_t len)
{
return pff->ops->add(pff->pff_i, addr, fd, len);
}
int pff_update(struct pff * pff,
uint64_t addr,
int * fd,
size_t len)
{
return pff->ops->update(pff->pff_i, addr, fd, len);
}
int pff_del(struct pff * pff,
uint64_t addr)
{
return pff->ops->del(pff->pff_i, addr);
}
void pff_flush(struct pff * pff)
{
return pff->ops->flush(pff->pff_i);
}
int pff_nhop(struct pff * pff,
uint64_t addr)
{
return pff->ops->nhop(pff->pff_i, addr);
}
int pff_flow_state_change(struct pff * pff,
int fd,
bool up)
{
if (pff->ops->flow_state_change != NULL)
return pff->ops->flow_state_change(pff->pff_i, fd, up);
return 0;
}
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