/* * Ouroboros - Copyright (C) 2016 - 2020 * * PDU Forwarding Function * * 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., http://www.fsf.org/about/contact/. */ #define OUROBOROS_PREFIX "pff" #include <ouroboros/errno.h> #include <ouroboros/logs.h> #include "pff.h" #include "pol-pff-ops.h" #include "pol/alternate_pff.h" #include "pol/simple_pff.h" struct pff { struct pol_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; 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; }