2007-07-03 12:30:03 +00:00
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/* $OpenBSD: pfctl_altq.c,v 1.91 2006/11/28 00:08:50 henning Exp $ */
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2004-02-28 16:52:45 +00:00
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/*
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* Copyright (c) 2002
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* Sony Computer Science Laboratories Inc.
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* Copyright (c) 2002, 2003 Henning Brauer <henning@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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2004-03-16 17:24:06 +00:00
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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2004-03-15 13:41:17 +00:00
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#include <sys/param.h>
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2004-02-28 16:52:45 +00:00
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <net/pfvar.h>
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#include <err.h>
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#include <errno.h>
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2004-03-15 13:41:17 +00:00
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#include <limits.h>
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2004-02-28 16:52:45 +00:00
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <altq/altq.h>
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#include <altq/altq_cbq.h>
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#include <altq/altq_priq.h>
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#include <altq/altq_hfsc.h>
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#include "pfctl_parser.h"
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#include "pfctl.h"
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#define is_sc_null(sc) (((sc) == NULL) || ((sc)->m1 == 0 && (sc)->m2 == 0))
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TAILQ_HEAD(altqs, pf_altq) altqs = TAILQ_HEAD_INITIALIZER(altqs);
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LIST_HEAD(gen_sc, segment) rtsc, lssc;
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struct pf_altq *qname_to_pfaltq(const char *, const char *);
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u_int32_t qname_to_qid(const char *);
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static int eval_pfqueue_cbq(struct pfctl *, struct pf_altq *);
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static int cbq_compute_idletime(struct pfctl *, struct pf_altq *);
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static int check_commit_cbq(int, int, struct pf_altq *);
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static int print_cbq_opts(const struct pf_altq *);
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static int eval_pfqueue_priq(struct pfctl *, struct pf_altq *);
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static int check_commit_priq(int, int, struct pf_altq *);
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static int print_priq_opts(const struct pf_altq *);
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static int eval_pfqueue_hfsc(struct pfctl *, struct pf_altq *);
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static int check_commit_hfsc(int, int, struct pf_altq *);
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static int print_hfsc_opts(const struct pf_altq *,
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const struct node_queue_opt *);
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static void gsc_add_sc(struct gen_sc *, struct service_curve *);
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static int is_gsc_under_sc(struct gen_sc *,
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struct service_curve *);
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static void gsc_destroy(struct gen_sc *);
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static struct segment *gsc_getentry(struct gen_sc *, double);
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static int gsc_add_seg(struct gen_sc *, double, double, double,
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double);
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static double sc_x2y(struct service_curve *, double);
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2004-03-15 13:41:17 +00:00
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#ifdef __FreeBSD__
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2004-02-28 17:32:53 +00:00
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u_int32_t getifspeed(int, char *);
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#else
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2004-02-28 16:52:45 +00:00
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u_int32_t getifspeed(char *);
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2004-02-28 17:32:53 +00:00
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#endif
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2004-02-28 16:52:45 +00:00
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u_long getifmtu(char *);
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int eval_queue_opts(struct pf_altq *, struct node_queue_opt *,
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u_int32_t);
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u_int32_t eval_bwspec(struct node_queue_bw *, u_int32_t);
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void print_hfsc_sc(const char *, u_int, u_int, u_int,
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const struct node_hfsc_sc *);
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void
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pfaltq_store(struct pf_altq *a)
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{
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struct pf_altq *altq;
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if ((altq = malloc(sizeof(*altq))) == NULL)
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err(1, "malloc");
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memcpy(altq, a, sizeof(struct pf_altq));
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TAILQ_INSERT_TAIL(&altqs, altq, entries);
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}
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struct pf_altq *
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pfaltq_lookup(const char *ifname)
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{
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struct pf_altq *altq;
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TAILQ_FOREACH(altq, &altqs, entries) {
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if (strncmp(ifname, altq->ifname, IFNAMSIZ) == 0 &&
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altq->qname[0] == 0)
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return (altq);
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}
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return (NULL);
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}
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struct pf_altq *
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qname_to_pfaltq(const char *qname, const char *ifname)
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{
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struct pf_altq *altq;
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TAILQ_FOREACH(altq, &altqs, entries) {
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if (strncmp(ifname, altq->ifname, IFNAMSIZ) == 0 &&
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strncmp(qname, altq->qname, PF_QNAME_SIZE) == 0)
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return (altq);
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}
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return (NULL);
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}
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u_int32_t
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qname_to_qid(const char *qname)
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{
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struct pf_altq *altq;
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/*
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* We guarantee that same named queues on different interfaces
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* have the same qid, so we do NOT need to limit matching on
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* one interface!
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*/
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TAILQ_FOREACH(altq, &altqs, entries) {
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if (strncmp(qname, altq->qname, PF_QNAME_SIZE) == 0)
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return (altq->qid);
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}
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return (0);
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}
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void
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print_altq(const struct pf_altq *a, unsigned level, struct node_queue_bw *bw,
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struct node_queue_opt *qopts)
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{
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2004-06-16 23:39:33 +00:00
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if (a->qname[0] != 0) {
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2007-07-03 12:30:03 +00:00
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print_queue(a, level, bw, 1, qopts);
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2004-02-28 16:52:45 +00:00
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return;
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}
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2008-03-29 00:24:36 +00:00
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#ifdef __FreeBSD__
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if (a->local_flags & PFALTQ_FLAG_IF_REMOVED)
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printf("INACTIVE ");
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#endif
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2004-02-28 16:52:45 +00:00
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printf("altq on %s ", a->ifname);
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2004-06-16 23:39:33 +00:00
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switch (a->scheduler) {
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2004-02-28 16:52:45 +00:00
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case ALTQT_CBQ:
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if (!print_cbq_opts(a))
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printf("cbq ");
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break;
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case ALTQT_PRIQ:
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if (!print_priq_opts(a))
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printf("priq ");
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break;
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case ALTQT_HFSC:
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if (!print_hfsc_opts(a, qopts))
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printf("hfsc ");
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break;
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}
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if (bw != NULL && bw->bw_percent > 0) {
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if (bw->bw_percent < 100)
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printf("bandwidth %u%% ", bw->bw_percent);
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} else
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printf("bandwidth %s ", rate2str((double)a->ifbandwidth));
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if (a->qlimit != DEFAULT_QLIMIT)
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printf("qlimit %u ", a->qlimit);
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printf("tbrsize %u ", a->tbrsize);
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}
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void
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print_queue(const struct pf_altq *a, unsigned level, struct node_queue_bw *bw,
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int print_interface, struct node_queue_opt *qopts)
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{
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unsigned i;
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2008-03-29 00:24:36 +00:00
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#ifdef __FreeBSD__
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if (a->local_flags & PFALTQ_FLAG_IF_REMOVED)
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printf("INACTIVE ");
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#endif
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2004-02-28 16:52:45 +00:00
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printf("queue ");
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for (i = 0; i < level; ++i)
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printf(" ");
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printf("%s ", a->qname);
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if (print_interface)
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printf("on %s ", a->ifname);
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if (a->scheduler == ALTQT_CBQ || a->scheduler == ALTQT_HFSC) {
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if (bw != NULL && bw->bw_percent > 0) {
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if (bw->bw_percent < 100)
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printf("bandwidth %u%% ", bw->bw_percent);
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} else
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printf("bandwidth %s ", rate2str((double)a->bandwidth));
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}
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if (a->priority != DEFAULT_PRIORITY)
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printf("priority %u ", a->priority);
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if (a->qlimit != DEFAULT_QLIMIT)
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printf("qlimit %u ", a->qlimit);
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switch (a->scheduler) {
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case ALTQT_CBQ:
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print_cbq_opts(a);
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break;
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case ALTQT_PRIQ:
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print_priq_opts(a);
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break;
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case ALTQT_HFSC:
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print_hfsc_opts(a, qopts);
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break;
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}
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}
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/*
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* eval_pfaltq computes the discipline parameters.
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*/
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int
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eval_pfaltq(struct pfctl *pf, struct pf_altq *pa, struct node_queue_bw *bw,
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struct node_queue_opt *opts)
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{
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u_int rate, size, errors = 0;
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if (bw->bw_absolute > 0)
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pa->ifbandwidth = bw->bw_absolute;
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else
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2004-03-15 13:41:17 +00:00
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#ifdef __FreeBSD__
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2004-02-28 17:32:53 +00:00
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if ((rate = getifspeed(pf->dev, pa->ifname)) == 0) {
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#else
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2004-02-28 16:52:45 +00:00
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if ((rate = getifspeed(pa->ifname)) == 0) {
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2004-02-28 17:32:53 +00:00
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#endif
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2007-07-03 12:30:03 +00:00
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fprintf(stderr, "interface %s does not know its bandwidth, "
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"please specify an absolute bandwidth\n",
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2004-02-28 16:52:45 +00:00
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pa->ifname);
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errors++;
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} else if ((pa->ifbandwidth = eval_bwspec(bw, rate)) == 0)
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pa->ifbandwidth = rate;
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errors += eval_queue_opts(pa, opts, pa->ifbandwidth);
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/* if tbrsize is not specified, use heuristics */
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if (pa->tbrsize == 0) {
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rate = pa->ifbandwidth;
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if (rate <= 1 * 1000 * 1000)
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size = 1;
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else if (rate <= 10 * 1000 * 1000)
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size = 4;
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else if (rate <= 200 * 1000 * 1000)
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size = 8;
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else
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size = 24;
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size = size * getifmtu(pa->ifname);
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2004-06-16 23:39:33 +00:00
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if (size > 0xffff)
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size = 0xffff;
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2004-02-28 16:52:45 +00:00
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pa->tbrsize = size;
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}
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return (errors);
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}
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/*
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* check_commit_altq does consistency check for each interface
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*/
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int
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check_commit_altq(int dev, int opts)
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{
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struct pf_altq *altq;
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int error = 0;
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/* call the discipline check for each interface. */
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TAILQ_FOREACH(altq, &altqs, entries) {
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if (altq->qname[0] == 0) {
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switch (altq->scheduler) {
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case ALTQT_CBQ:
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error = check_commit_cbq(dev, opts, altq);
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break;
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case ALTQT_PRIQ:
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error = check_commit_priq(dev, opts, altq);
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break;
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case ALTQT_HFSC:
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error = check_commit_hfsc(dev, opts, altq);
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break;
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default:
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break;
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}
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}
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}
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return (error);
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}
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/*
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* eval_pfqueue computes the queue parameters.
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*/
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int
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eval_pfqueue(struct pfctl *pf, struct pf_altq *pa, struct node_queue_bw *bw,
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struct node_queue_opt *opts)
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{
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/* should be merged with expand_queue */
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2005-05-03 16:55:20 +00:00
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struct pf_altq *if_pa, *parent, *altq;
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u_int32_t bwsum;
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2004-02-28 16:52:45 +00:00
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int error = 0;
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/* find the corresponding interface and copy fields used by queues */
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if ((if_pa = pfaltq_lookup(pa->ifname)) == NULL) {
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fprintf(stderr, "altq not defined on %s\n", pa->ifname);
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return (1);
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}
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pa->scheduler = if_pa->scheduler;
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pa->ifbandwidth = if_pa->ifbandwidth;
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if (qname_to_pfaltq(pa->qname, pa->ifname) != NULL) {
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fprintf(stderr, "queue %s already exists on interface %s\n",
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pa->qname, pa->ifname);
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return (1);
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}
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pa->qid = qname_to_qid(pa->qname);
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parent = NULL;
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if (pa->parent[0] != 0) {
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parent = qname_to_pfaltq(pa->parent, pa->ifname);
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if (parent == NULL) {
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fprintf(stderr, "parent %s not found for %s\n",
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pa->parent, pa->qname);
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return (1);
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}
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pa->parent_qid = parent->qid;
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}
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if (pa->qlimit == 0)
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pa->qlimit = DEFAULT_QLIMIT;
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if (pa->scheduler == ALTQT_CBQ || pa->scheduler == ALTQT_HFSC) {
|
2005-05-03 16:55:20 +00:00
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|
|
pa->bandwidth = eval_bwspec(bw,
|
|
|
|
parent == NULL ? 0 : parent->bandwidth);
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
if (pa->bandwidth > pa->ifbandwidth) {
|
|
|
|
fprintf(stderr, "bandwidth for %s higher than "
|
|
|
|
"interface\n", pa->qname);
|
|
|
|
return (1);
|
|
|
|
}
|
2005-05-03 16:55:20 +00:00
|
|
|
/* check the sum of the child bandwidth is under parent's */
|
|
|
|
if (parent != NULL) {
|
|
|
|
if (pa->bandwidth > parent->bandwidth) {
|
|
|
|
warnx("bandwidth for %s higher than parent",
|
|
|
|
pa->qname);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
bwsum = 0;
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname,
|
|
|
|
IFNAMSIZ) == 0 &&
|
|
|
|
altq->qname[0] != 0 &&
|
|
|
|
strncmp(altq->parent, pa->parent,
|
|
|
|
PF_QNAME_SIZE) == 0)
|
|
|
|
bwsum += altq->bandwidth;
|
|
|
|
}
|
|
|
|
bwsum += pa->bandwidth;
|
|
|
|
if (bwsum > parent->bandwidth) {
|
|
|
|
warnx("the sum of the child bandwidth higher"
|
|
|
|
" than parent \"%s\"", parent->qname);
|
|
|
|
}
|
2004-02-28 16:52:45 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (eval_queue_opts(pa, opts, parent == NULL? 0 : parent->bandwidth))
|
|
|
|
return (1);
|
|
|
|
|
|
|
|
switch (pa->scheduler) {
|
|
|
|
case ALTQT_CBQ:
|
|
|
|
error = eval_pfqueue_cbq(pf, pa);
|
|
|
|
break;
|
|
|
|
case ALTQT_PRIQ:
|
|
|
|
error = eval_pfqueue_priq(pf, pa);
|
|
|
|
break;
|
|
|
|
case ALTQT_HFSC:
|
|
|
|
error = eval_pfqueue_hfsc(pf, pa);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* CBQ support functions
|
|
|
|
*/
|
|
|
|
#define RM_FILTER_GAIN 5 /* log2 of gain, e.g., 5 => 31/32 */
|
|
|
|
#define RM_NS_PER_SEC (1000000000)
|
|
|
|
|
|
|
|
static int
|
|
|
|
eval_pfqueue_cbq(struct pfctl *pf, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct cbq_opts *opts;
|
|
|
|
u_int ifmtu;
|
|
|
|
|
|
|
|
if (pa->priority >= CBQ_MAXPRI) {
|
|
|
|
warnx("priority out of range: max %d", CBQ_MAXPRI - 1);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
ifmtu = getifmtu(pa->ifname);
|
|
|
|
opts = &pa->pq_u.cbq_opts;
|
|
|
|
|
|
|
|
if (opts->pktsize == 0) { /* use default */
|
|
|
|
opts->pktsize = ifmtu;
|
|
|
|
if (opts->pktsize > MCLBYTES) /* do what TCP does */
|
|
|
|
opts->pktsize &= ~MCLBYTES;
|
|
|
|
} else if (opts->pktsize > ifmtu)
|
|
|
|
opts->pktsize = ifmtu;
|
|
|
|
if (opts->maxpktsize == 0) /* use default */
|
|
|
|
opts->maxpktsize = ifmtu;
|
|
|
|
else if (opts->maxpktsize > ifmtu)
|
|
|
|
opts->pktsize = ifmtu;
|
|
|
|
|
|
|
|
if (opts->pktsize > opts->maxpktsize)
|
|
|
|
opts->pktsize = opts->maxpktsize;
|
|
|
|
|
|
|
|
if (pa->parent[0] == 0)
|
|
|
|
opts->flags |= (CBQCLF_ROOTCLASS | CBQCLF_WRR);
|
|
|
|
|
|
|
|
cbq_compute_idletime(pf, pa);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* compute ns_per_byte, maxidle, minidle, and offtime
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
cbq_compute_idletime(struct pfctl *pf, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct cbq_opts *opts;
|
|
|
|
double maxidle_s, maxidle, minidle;
|
|
|
|
double offtime, nsPerByte, ifnsPerByte, ptime, cptime;
|
|
|
|
double z, g, f, gton, gtom;
|
|
|
|
u_int minburst, maxburst;
|
|
|
|
|
|
|
|
opts = &pa->pq_u.cbq_opts;
|
|
|
|
ifnsPerByte = (1.0 / (double)pa->ifbandwidth) * RM_NS_PER_SEC * 8;
|
|
|
|
minburst = opts->minburst;
|
|
|
|
maxburst = opts->maxburst;
|
|
|
|
|
|
|
|
if (pa->bandwidth == 0)
|
|
|
|
f = 0.0001; /* small enough? */
|
|
|
|
else
|
|
|
|
f = ((double) pa->bandwidth / (double) pa->ifbandwidth);
|
|
|
|
|
|
|
|
nsPerByte = ifnsPerByte / f;
|
|
|
|
ptime = (double)opts->pktsize * ifnsPerByte;
|
|
|
|
cptime = ptime * (1.0 - f) / f;
|
|
|
|
|
|
|
|
if (nsPerByte * (double)opts->maxpktsize > (double)INT_MAX) {
|
|
|
|
/*
|
|
|
|
* this causes integer overflow in kernel!
|
|
|
|
* (bandwidth < 6Kbps when max_pkt_size=1500)
|
|
|
|
*/
|
|
|
|
if (pa->bandwidth != 0 && (pf->opts & PF_OPT_QUIET) == 0)
|
|
|
|
warnx("queue bandwidth must be larger than %s",
|
|
|
|
rate2str(ifnsPerByte * (double)opts->maxpktsize /
|
|
|
|
(double)INT_MAX * (double)pa->ifbandwidth));
|
|
|
|
fprintf(stderr, "cbq: queue %s is too slow!\n",
|
|
|
|
pa->qname);
|
|
|
|
nsPerByte = (double)(INT_MAX / opts->maxpktsize);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (maxburst == 0) { /* use default */
|
|
|
|
if (cptime > 10.0 * 1000000)
|
|
|
|
maxburst = 4;
|
|
|
|
else
|
|
|
|
maxburst = 16;
|
|
|
|
}
|
|
|
|
if (minburst == 0) /* use default */
|
|
|
|
minburst = 2;
|
|
|
|
if (minburst > maxburst)
|
|
|
|
minburst = maxburst;
|
|
|
|
|
|
|
|
z = (double)(1 << RM_FILTER_GAIN);
|
|
|
|
g = (1.0 - 1.0 / z);
|
|
|
|
gton = pow(g, (double)maxburst);
|
|
|
|
gtom = pow(g, (double)(minburst-1));
|
|
|
|
maxidle = ((1.0 / f - 1.0) * ((1.0 - gton) / gton));
|
|
|
|
maxidle_s = (1.0 - g);
|
|
|
|
if (maxidle > maxidle_s)
|
|
|
|
maxidle = ptime * maxidle;
|
|
|
|
else
|
|
|
|
maxidle = ptime * maxidle_s;
|
2007-07-03 12:30:03 +00:00
|
|
|
offtime = cptime * (1.0 + 1.0/(1.0 - g) * (1.0 - gtom) / gtom);
|
2004-02-28 16:52:45 +00:00
|
|
|
minidle = -((double)opts->maxpktsize * (double)nsPerByte);
|
|
|
|
|
|
|
|
/* scale parameters */
|
2004-06-16 23:39:33 +00:00
|
|
|
maxidle = ((maxidle * 8.0) / nsPerByte) *
|
|
|
|
pow(2.0, (double)RM_FILTER_GAIN);
|
|
|
|
offtime = (offtime * 8.0) / nsPerByte *
|
|
|
|
pow(2.0, (double)RM_FILTER_GAIN);
|
|
|
|
minidle = ((minidle * 8.0) / nsPerByte) *
|
|
|
|
pow(2.0, (double)RM_FILTER_GAIN);
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
maxidle = maxidle / 1000.0;
|
|
|
|
offtime = offtime / 1000.0;
|
|
|
|
minidle = minidle / 1000.0;
|
|
|
|
|
|
|
|
opts->minburst = minburst;
|
|
|
|
opts->maxburst = maxburst;
|
2004-06-16 23:39:33 +00:00
|
|
|
opts->ns_per_byte = (u_int)nsPerByte;
|
|
|
|
opts->maxidle = (u_int)fabs(maxidle);
|
2004-02-28 16:52:45 +00:00
|
|
|
opts->minidle = (int)minidle;
|
2004-06-16 23:39:33 +00:00
|
|
|
opts->offtime = (u_int)fabs(offtime);
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
check_commit_cbq(int dev, int opts, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct pf_altq *altq;
|
|
|
|
int root_class, default_class;
|
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* check if cbq has one root queue and one default queue
|
|
|
|
* for this interface
|
|
|
|
*/
|
|
|
|
root_class = default_class = 0;
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0)
|
|
|
|
continue;
|
|
|
|
if (altq->qname[0] == 0) /* this is for interface */
|
|
|
|
continue;
|
|
|
|
if (altq->pq_u.cbq_opts.flags & CBQCLF_ROOTCLASS)
|
|
|
|
root_class++;
|
|
|
|
if (altq->pq_u.cbq_opts.flags & CBQCLF_DEFCLASS)
|
|
|
|
default_class++;
|
|
|
|
}
|
|
|
|
if (root_class != 1) {
|
|
|
|
warnx("should have one root queue on %s", pa->ifname);
|
|
|
|
error++;
|
|
|
|
}
|
|
|
|
if (default_class != 1) {
|
|
|
|
warnx("should have one default queue on %s", pa->ifname);
|
|
|
|
error++;
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
print_cbq_opts(const struct pf_altq *a)
|
|
|
|
{
|
|
|
|
const struct cbq_opts *opts;
|
|
|
|
|
|
|
|
opts = &a->pq_u.cbq_opts;
|
|
|
|
if (opts->flags) {
|
|
|
|
printf("cbq(");
|
|
|
|
if (opts->flags & CBQCLF_RED)
|
|
|
|
printf(" red");
|
|
|
|
if (opts->flags & CBQCLF_ECN)
|
|
|
|
printf(" ecn");
|
|
|
|
if (opts->flags & CBQCLF_RIO)
|
|
|
|
printf(" rio");
|
|
|
|
if (opts->flags & CBQCLF_CLEARDSCP)
|
|
|
|
printf(" cleardscp");
|
|
|
|
if (opts->flags & CBQCLF_FLOWVALVE)
|
|
|
|
printf(" flowvalve");
|
|
|
|
if (opts->flags & CBQCLF_BORROW)
|
|
|
|
printf(" borrow");
|
|
|
|
if (opts->flags & CBQCLF_WRR)
|
|
|
|
printf(" wrr");
|
|
|
|
if (opts->flags & CBQCLF_EFFICIENT)
|
|
|
|
printf(" efficient");
|
|
|
|
if (opts->flags & CBQCLF_ROOTCLASS)
|
|
|
|
printf(" root");
|
|
|
|
if (opts->flags & CBQCLF_DEFCLASS)
|
|
|
|
printf(" default");
|
|
|
|
printf(" ) ");
|
|
|
|
|
|
|
|
return (1);
|
|
|
|
} else
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* PRIQ support functions
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
eval_pfqueue_priq(struct pfctl *pf, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct pf_altq *altq;
|
|
|
|
|
|
|
|
if (pa->priority >= PRIQ_MAXPRI) {
|
|
|
|
warnx("priority out of range: max %d", PRIQ_MAXPRI - 1);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
/* the priority should be unique for the interface */
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) == 0 &&
|
|
|
|
altq->qname[0] != 0 && altq->priority == pa->priority) {
|
|
|
|
warnx("%s and %s have the same priority",
|
|
|
|
altq->qname, pa->qname);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
check_commit_priq(int dev, int opts, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct pf_altq *altq;
|
|
|
|
int default_class;
|
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* check if priq has one default class for this interface
|
|
|
|
*/
|
|
|
|
default_class = 0;
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0)
|
|
|
|
continue;
|
|
|
|
if (altq->qname[0] == 0) /* this is for interface */
|
|
|
|
continue;
|
|
|
|
if (altq->pq_u.priq_opts.flags & PRCF_DEFAULTCLASS)
|
|
|
|
default_class++;
|
|
|
|
}
|
|
|
|
if (default_class != 1) {
|
|
|
|
warnx("should have one default queue on %s", pa->ifname);
|
|
|
|
error++;
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
print_priq_opts(const struct pf_altq *a)
|
|
|
|
{
|
|
|
|
const struct priq_opts *opts;
|
|
|
|
|
|
|
|
opts = &a->pq_u.priq_opts;
|
|
|
|
|
|
|
|
if (opts->flags) {
|
|
|
|
printf("priq(");
|
|
|
|
if (opts->flags & PRCF_RED)
|
|
|
|
printf(" red");
|
|
|
|
if (opts->flags & PRCF_ECN)
|
|
|
|
printf(" ecn");
|
|
|
|
if (opts->flags & PRCF_RIO)
|
|
|
|
printf(" rio");
|
|
|
|
if (opts->flags & PRCF_CLEARDSCP)
|
|
|
|
printf(" cleardscp");
|
|
|
|
if (opts->flags & PRCF_DEFAULTCLASS)
|
|
|
|
printf(" default");
|
|
|
|
printf(" ) ");
|
|
|
|
|
|
|
|
return (1);
|
|
|
|
} else
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* HFSC support functions
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
eval_pfqueue_hfsc(struct pfctl *pf, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct pf_altq *altq, *parent;
|
|
|
|
struct hfsc_opts *opts;
|
|
|
|
struct service_curve sc;
|
|
|
|
|
|
|
|
opts = &pa->pq_u.hfsc_opts;
|
|
|
|
|
|
|
|
if (pa->parent[0] == 0) {
|
|
|
|
/* root queue */
|
|
|
|
opts->lssc_m1 = pa->ifbandwidth;
|
|
|
|
opts->lssc_m2 = pa->ifbandwidth;
|
|
|
|
opts->lssc_d = 0;
|
|
|
|
return (0);
|
2004-06-16 23:39:33 +00:00
|
|
|
}
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
LIST_INIT(&rtsc);
|
|
|
|
LIST_INIT(&lssc);
|
|
|
|
|
|
|
|
/* if link_share is not specified, use bandwidth */
|
|
|
|
if (opts->lssc_m2 == 0)
|
|
|
|
opts->lssc_m2 = pa->bandwidth;
|
|
|
|
|
|
|
|
if ((opts->rtsc_m1 > 0 && opts->rtsc_m2 == 0) ||
|
|
|
|
(opts->lssc_m1 > 0 && opts->lssc_m2 == 0) ||
|
|
|
|
(opts->ulsc_m1 > 0 && opts->ulsc_m2 == 0)) {
|
|
|
|
warnx("m2 is zero for %s", pa->qname);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((opts->rtsc_m1 < opts->rtsc_m2 && opts->rtsc_m1 != 0) ||
|
2006-11-30 18:55:36 +00:00
|
|
|
(opts->lssc_m1 < opts->lssc_m2 && opts->lssc_m1 != 0) ||
|
|
|
|
(opts->ulsc_m1 < opts->ulsc_m2 && opts->ulsc_m1 != 0)) {
|
2004-02-28 16:52:45 +00:00
|
|
|
warnx("m1 must be zero for convex curve: %s", pa->qname);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* admission control:
|
|
|
|
* for the real-time service curve, the sum of the service curves
|
|
|
|
* should not exceed 80% of the interface bandwidth. 20% is reserved
|
|
|
|
* not to over-commit the actual interface bandwidth.
|
2005-05-03 16:55:20 +00:00
|
|
|
* for the linkshare service curve, the sum of the child service
|
2004-02-28 16:52:45 +00:00
|
|
|
* curve should not exceed the parent service curve.
|
|
|
|
* for the upper-limit service curve, the assigned bandwidth should
|
|
|
|
* be smaller than the interface bandwidth, and the upper-limit should
|
|
|
|
* be larger than the real-time service curve when both are defined.
|
|
|
|
*/
|
|
|
|
parent = qname_to_pfaltq(pa->parent, pa->ifname);
|
|
|
|
if (parent == NULL)
|
|
|
|
errx(1, "parent %s not found for %s", pa->parent, pa->qname);
|
|
|
|
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0)
|
|
|
|
continue;
|
|
|
|
if (altq->qname[0] == 0) /* this is for interface */
|
|
|
|
continue;
|
|
|
|
|
|
|
|
/* if the class has a real-time service curve, add it. */
|
|
|
|
if (opts->rtsc_m2 != 0 && altq->pq_u.hfsc_opts.rtsc_m2 != 0) {
|
|
|
|
sc.m1 = altq->pq_u.hfsc_opts.rtsc_m1;
|
2004-06-16 23:39:33 +00:00
|
|
|
sc.d = altq->pq_u.hfsc_opts.rtsc_d;
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m2 = altq->pq_u.hfsc_opts.rtsc_m2;
|
|
|
|
gsc_add_sc(&rtsc, &sc);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (strncmp(altq->parent, pa->parent, PF_QNAME_SIZE) != 0)
|
|
|
|
continue;
|
|
|
|
|
2005-05-03 16:55:20 +00:00
|
|
|
/* if the class has a linkshare service curve, add it. */
|
2004-02-28 16:52:45 +00:00
|
|
|
if (opts->lssc_m2 != 0 && altq->pq_u.hfsc_opts.lssc_m2 != 0) {
|
|
|
|
sc.m1 = altq->pq_u.hfsc_opts.lssc_m1;
|
2004-06-16 23:39:33 +00:00
|
|
|
sc.d = altq->pq_u.hfsc_opts.lssc_d;
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m2 = altq->pq_u.hfsc_opts.lssc_m2;
|
|
|
|
gsc_add_sc(&lssc, &sc);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* check the real-time service curve. reserve 20% of interface bw */
|
|
|
|
if (opts->rtsc_m2 != 0) {
|
2005-05-03 16:55:20 +00:00
|
|
|
/* add this queue to the sum */
|
|
|
|
sc.m1 = opts->rtsc_m1;
|
|
|
|
sc.d = opts->rtsc_d;
|
|
|
|
sc.m2 = opts->rtsc_m2;
|
|
|
|
gsc_add_sc(&rtsc, &sc);
|
|
|
|
/* compare the sum with 80% of the interface */
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m1 = 0;
|
2004-06-16 23:39:33 +00:00
|
|
|
sc.d = 0;
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m2 = pa->ifbandwidth / 100 * 80;
|
|
|
|
if (!is_gsc_under_sc(&rtsc, &sc)) {
|
2005-05-03 16:55:20 +00:00
|
|
|
warnx("real-time sc exceeds 80%% of the interface "
|
|
|
|
"bandwidth (%s)", rate2str((double)sc.m2));
|
2004-02-28 16:52:45 +00:00
|
|
|
goto err_ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-05-03 16:55:20 +00:00
|
|
|
/* check the linkshare service curve. */
|
2004-02-28 16:52:45 +00:00
|
|
|
if (opts->lssc_m2 != 0) {
|
2005-05-03 16:55:20 +00:00
|
|
|
/* add this queue to the child sum */
|
|
|
|
sc.m1 = opts->lssc_m1;
|
|
|
|
sc.d = opts->lssc_d;
|
|
|
|
sc.m2 = opts->lssc_m2;
|
|
|
|
gsc_add_sc(&lssc, &sc);
|
|
|
|
/* compare the sum of the children with parent's sc */
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m1 = parent->pq_u.hfsc_opts.lssc_m1;
|
2004-06-16 23:39:33 +00:00
|
|
|
sc.d = parent->pq_u.hfsc_opts.lssc_d;
|
2004-02-28 16:52:45 +00:00
|
|
|
sc.m2 = parent->pq_u.hfsc_opts.lssc_m2;
|
|
|
|
if (!is_gsc_under_sc(&lssc, &sc)) {
|
2005-05-03 16:55:20 +00:00
|
|
|
warnx("linkshare sc exceeds parent's sc");
|
2004-02-28 16:52:45 +00:00
|
|
|
goto err_ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* check the upper-limit service curve. */
|
|
|
|
if (opts->ulsc_m2 != 0) {
|
|
|
|
if (opts->ulsc_m1 > pa->ifbandwidth ||
|
|
|
|
opts->ulsc_m2 > pa->ifbandwidth) {
|
|
|
|
warnx("upper-limit larger than interface bandwidth");
|
|
|
|
goto err_ret;
|
|
|
|
}
|
|
|
|
if (opts->rtsc_m2 != 0 && opts->rtsc_m2 > opts->ulsc_m2) {
|
|
|
|
warnx("upper-limit sc smaller than real-time sc");
|
|
|
|
goto err_ret;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
gsc_destroy(&rtsc);
|
|
|
|
gsc_destroy(&lssc);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
err_ret:
|
|
|
|
gsc_destroy(&rtsc);
|
|
|
|
gsc_destroy(&lssc);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
check_commit_hfsc(int dev, int opts, struct pf_altq *pa)
|
|
|
|
{
|
|
|
|
struct pf_altq *altq, *def = NULL;
|
|
|
|
int default_class;
|
|
|
|
int error = 0;
|
|
|
|
|
|
|
|
/* check if hfsc has one default queue for this interface */
|
|
|
|
default_class = 0;
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0)
|
|
|
|
continue;
|
|
|
|
if (altq->qname[0] == 0) /* this is for interface */
|
|
|
|
continue;
|
|
|
|
if (altq->parent[0] == 0) /* dummy root */
|
|
|
|
continue;
|
|
|
|
if (altq->pq_u.hfsc_opts.flags & HFCF_DEFAULTCLASS) {
|
|
|
|
default_class++;
|
|
|
|
def = altq;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (default_class != 1) {
|
|
|
|
warnx("should have one default queue on %s", pa->ifname);
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
/* make sure the default queue is a leaf */
|
|
|
|
TAILQ_FOREACH(altq, &altqs, entries) {
|
|
|
|
if (strncmp(altq->ifname, pa->ifname, IFNAMSIZ) != 0)
|
|
|
|
continue;
|
|
|
|
if (altq->qname[0] == 0) /* this is for interface */
|
|
|
|
continue;
|
|
|
|
if (strncmp(altq->parent, def->qname, PF_QNAME_SIZE) == 0) {
|
|
|
|
warnx("default queue is not a leaf");
|
|
|
|
error++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return (error);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
print_hfsc_opts(const struct pf_altq *a, const struct node_queue_opt *qopts)
|
|
|
|
{
|
|
|
|
const struct hfsc_opts *opts;
|
|
|
|
const struct node_hfsc_sc *rtsc, *lssc, *ulsc;
|
|
|
|
|
|
|
|
opts = &a->pq_u.hfsc_opts;
|
|
|
|
if (qopts == NULL)
|
|
|
|
rtsc = lssc = ulsc = NULL;
|
|
|
|
else {
|
|
|
|
rtsc = &qopts->data.hfsc_opts.realtime;
|
|
|
|
lssc = &qopts->data.hfsc_opts.linkshare;
|
|
|
|
ulsc = &qopts->data.hfsc_opts.upperlimit;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (opts->flags || opts->rtsc_m2 != 0 || opts->ulsc_m2 != 0 ||
|
|
|
|
(opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth ||
|
|
|
|
opts->lssc_d != 0))) {
|
|
|
|
printf("hfsc(");
|
|
|
|
if (opts->flags & HFCF_RED)
|
|
|
|
printf(" red");
|
|
|
|
if (opts->flags & HFCF_ECN)
|
|
|
|
printf(" ecn");
|
|
|
|
if (opts->flags & HFCF_RIO)
|
|
|
|
printf(" rio");
|
|
|
|
if (opts->flags & HFCF_CLEARDSCP)
|
|
|
|
printf(" cleardscp");
|
|
|
|
if (opts->flags & HFCF_DEFAULTCLASS)
|
|
|
|
printf(" default");
|
|
|
|
if (opts->rtsc_m2 != 0)
|
|
|
|
print_hfsc_sc("realtime", opts->rtsc_m1, opts->rtsc_d,
|
|
|
|
opts->rtsc_m2, rtsc);
|
|
|
|
if (opts->lssc_m2 != 0 && (opts->lssc_m2 != a->bandwidth ||
|
|
|
|
opts->lssc_d != 0))
|
|
|
|
print_hfsc_sc("linkshare", opts->lssc_m1, opts->lssc_d,
|
|
|
|
opts->lssc_m2, lssc);
|
|
|
|
if (opts->ulsc_m2 != 0)
|
|
|
|
print_hfsc_sc("upperlimit", opts->ulsc_m1, opts->ulsc_d,
|
|
|
|
opts->ulsc_m2, ulsc);
|
|
|
|
printf(" ) ");
|
|
|
|
|
|
|
|
return (1);
|
|
|
|
} else
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* admission control using generalized service curve
|
|
|
|
*/
|
2004-03-15 13:41:17 +00:00
|
|
|
#ifndef INFINITY
|
2004-02-28 17:32:53 +00:00
|
|
|
#define INFINITY HUGE_VAL /* positive infinity defined in <math.h> */
|
|
|
|
#endif
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
/* add a new service curve to a generalized service curve */
|
|
|
|
static void
|
|
|
|
gsc_add_sc(struct gen_sc *gsc, struct service_curve *sc)
|
|
|
|
{
|
|
|
|
if (is_sc_null(sc))
|
|
|
|
return;
|
|
|
|
if (sc->d != 0)
|
|
|
|
gsc_add_seg(gsc, 0.0, 0.0, (double)sc->d, (double)sc->m1);
|
|
|
|
gsc_add_seg(gsc, (double)sc->d, 0.0, INFINITY, (double)sc->m2);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* check whether all points of a generalized service curve have
|
|
|
|
* their y-coordinates no larger than a given two-piece linear
|
|
|
|
* service curve.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
is_gsc_under_sc(struct gen_sc *gsc, struct service_curve *sc)
|
|
|
|
{
|
|
|
|
struct segment *s, *last, *end;
|
|
|
|
double y;
|
|
|
|
|
|
|
|
if (is_sc_null(sc)) {
|
|
|
|
if (LIST_EMPTY(gsc))
|
|
|
|
return (1);
|
|
|
|
LIST_FOREACH(s, gsc, _next) {
|
|
|
|
if (s->m != 0)
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* gsc has a dummy entry at the end with x = INFINITY.
|
|
|
|
* loop through up to this dummy entry.
|
|
|
|
*/
|
|
|
|
end = gsc_getentry(gsc, INFINITY);
|
|
|
|
if (end == NULL)
|
|
|
|
return (1);
|
|
|
|
last = NULL;
|
|
|
|
for (s = LIST_FIRST(gsc); s != end; s = LIST_NEXT(s, _next)) {
|
|
|
|
if (s->y > sc_x2y(sc, s->x))
|
|
|
|
return (0);
|
|
|
|
last = s;
|
|
|
|
}
|
|
|
|
/* last now holds the real last segment */
|
|
|
|
if (last == NULL)
|
|
|
|
return (1);
|
|
|
|
if (last->m > sc->m2)
|
|
|
|
return (0);
|
|
|
|
if (last->x < sc->d && last->m > sc->m1) {
|
|
|
|
y = last->y + (sc->d - last->x) * last->m;
|
|
|
|
if (y > sc_x2y(sc, sc->d))
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
gsc_destroy(struct gen_sc *gsc)
|
|
|
|
{
|
|
|
|
struct segment *s;
|
|
|
|
|
|
|
|
while ((s = LIST_FIRST(gsc)) != NULL) {
|
|
|
|
LIST_REMOVE(s, _next);
|
|
|
|
free(s);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* return a segment entry starting at x.
|
|
|
|
* if gsc has no entry starting at x, a new entry is created at x.
|
|
|
|
*/
|
|
|
|
static struct segment *
|
|
|
|
gsc_getentry(struct gen_sc *gsc, double x)
|
|
|
|
{
|
|
|
|
struct segment *new, *prev, *s;
|
|
|
|
|
|
|
|
prev = NULL;
|
|
|
|
LIST_FOREACH(s, gsc, _next) {
|
|
|
|
if (s->x == x)
|
|
|
|
return (s); /* matching entry found */
|
|
|
|
else if (s->x < x)
|
|
|
|
prev = s;
|
|
|
|
else
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* we have to create a new entry */
|
|
|
|
if ((new = calloc(1, sizeof(struct segment))) == NULL)
|
|
|
|
return (NULL);
|
|
|
|
|
|
|
|
new->x = x;
|
|
|
|
if (x == INFINITY || s == NULL)
|
|
|
|
new->d = 0;
|
|
|
|
else if (s->x == INFINITY)
|
|
|
|
new->d = INFINITY;
|
|
|
|
else
|
|
|
|
new->d = s->x - x;
|
|
|
|
if (prev == NULL) {
|
|
|
|
/* insert the new entry at the head of the list */
|
|
|
|
new->y = 0;
|
|
|
|
new->m = 0;
|
|
|
|
LIST_INSERT_HEAD(gsc, new, _next);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* the start point intersects with the segment pointed by
|
|
|
|
* prev. divide prev into 2 segments
|
|
|
|
*/
|
|
|
|
if (x == INFINITY) {
|
|
|
|
prev->d = INFINITY;
|
|
|
|
if (prev->m == 0)
|
|
|
|
new->y = prev->y;
|
|
|
|
else
|
|
|
|
new->y = INFINITY;
|
|
|
|
} else {
|
|
|
|
prev->d = x - prev->x;
|
|
|
|
new->y = prev->d * prev->m + prev->y;
|
|
|
|
}
|
|
|
|
new->m = prev->m;
|
|
|
|
LIST_INSERT_AFTER(prev, new, _next);
|
|
|
|
}
|
|
|
|
return (new);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add a segment to a generalized service curve */
|
|
|
|
static int
|
|
|
|
gsc_add_seg(struct gen_sc *gsc, double x, double y, double d, double m)
|
|
|
|
{
|
|
|
|
struct segment *start, *end, *s;
|
|
|
|
double x2;
|
|
|
|
|
|
|
|
if (d == INFINITY)
|
|
|
|
x2 = INFINITY;
|
|
|
|
else
|
|
|
|
x2 = x + d;
|
|
|
|
start = gsc_getentry(gsc, x);
|
2004-06-16 23:39:33 +00:00
|
|
|
end = gsc_getentry(gsc, x2);
|
2004-02-28 16:52:45 +00:00
|
|
|
if (start == NULL || end == NULL)
|
|
|
|
return (-1);
|
|
|
|
|
|
|
|
for (s = start; s != end; s = LIST_NEXT(s, _next)) {
|
|
|
|
s->m += m;
|
|
|
|
s->y += y + (s->x - x) * m;
|
|
|
|
}
|
|
|
|
|
|
|
|
end = gsc_getentry(gsc, INFINITY);
|
|
|
|
for (; s != end; s = LIST_NEXT(s, _next)) {
|
|
|
|
s->y += m * d;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get y-projection of a service curve */
|
|
|
|
static double
|
|
|
|
sc_x2y(struct service_curve *sc, double x)
|
|
|
|
{
|
|
|
|
double y;
|
|
|
|
|
|
|
|
if (x <= (double)sc->d)
|
|
|
|
/* y belongs to the 1st segment */
|
|
|
|
y = x * (double)sc->m1;
|
|
|
|
else
|
|
|
|
/* y belongs to the 2nd segment */
|
|
|
|
y = (double)sc->d * (double)sc->m1
|
|
|
|
+ (x - (double)sc->d) * (double)sc->m2;
|
|
|
|
return (y);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* misc utilities
|
|
|
|
*/
|
|
|
|
#define R2S_BUFS 8
|
|
|
|
#define RATESTR_MAX 16
|
|
|
|
|
|
|
|
char *
|
|
|
|
rate2str(double rate)
|
|
|
|
{
|
|
|
|
char *buf;
|
|
|
|
static char r2sbuf[R2S_BUFS][RATESTR_MAX]; /* ring bufer */
|
|
|
|
static int idx = 0;
|
|
|
|
int i;
|
|
|
|
static const char unit[] = " KMG";
|
|
|
|
|
|
|
|
buf = r2sbuf[idx++];
|
|
|
|
if (idx == R2S_BUFS)
|
|
|
|
idx = 0;
|
|
|
|
|
|
|
|
for (i = 0; rate >= 1000 && i <= 3; i++)
|
|
|
|
rate /= 1000;
|
|
|
|
|
|
|
|
if ((int)(rate * 100) % 100)
|
|
|
|
snprintf(buf, RATESTR_MAX, "%.2f%cb", rate, unit[i]);
|
|
|
|
else
|
|
|
|
snprintf(buf, RATESTR_MAX, "%d%cb", (int)rate, unit[i]);
|
|
|
|
|
|
|
|
return (buf);
|
|
|
|
}
|
|
|
|
|
2004-03-15 13:41:17 +00:00
|
|
|
#ifdef __FreeBSD__
|
2004-02-28 17:32:53 +00:00
|
|
|
/*
|
|
|
|
* XXX
|
2004-03-15 13:41:17 +00:00
|
|
|
* FreeBSD does not have SIOCGIFDATA.
|
2004-02-28 17:32:53 +00:00
|
|
|
* To emulate this, DIOCGIFSPEED ioctl added to pf.
|
|
|
|
*/
|
|
|
|
u_int32_t
|
|
|
|
getifspeed(int pfdev, char *ifname)
|
|
|
|
{
|
|
|
|
struct pf_ifspeed io;
|
|
|
|
|
|
|
|
bzero(&io, sizeof io);
|
|
|
|
if (strlcpy(io.ifname, ifname, IFNAMSIZ) >=
|
|
|
|
sizeof(io.ifname))
|
|
|
|
errx(1, "getifspeed: strlcpy");
|
|
|
|
if (ioctl(pfdev, DIOCGIFSPEED, &io) == -1)
|
|
|
|
err(1, "DIOCGIFSPEED");
|
|
|
|
return ((u_int32_t)io.baudrate);
|
|
|
|
}
|
|
|
|
#else
|
2004-02-28 16:52:45 +00:00
|
|
|
u_int32_t
|
|
|
|
getifspeed(char *ifname)
|
|
|
|
{
|
|
|
|
int s;
|
|
|
|
struct ifreq ifr;
|
|
|
|
struct if_data ifrdat;
|
|
|
|
|
|
|
|
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
|
|
|
|
err(1, "socket");
|
2005-05-03 16:55:20 +00:00
|
|
|
bzero(&ifr, sizeof(ifr));
|
2004-02-28 16:52:45 +00:00
|
|
|
if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) >=
|
|
|
|
sizeof(ifr.ifr_name))
|
|
|
|
errx(1, "getifspeed: strlcpy");
|
|
|
|
ifr.ifr_data = (caddr_t)&ifrdat;
|
|
|
|
if (ioctl(s, SIOCGIFDATA, (caddr_t)&ifr) == -1)
|
|
|
|
err(1, "SIOCGIFDATA");
|
|
|
|
if (shutdown(s, SHUT_RDWR) == -1)
|
|
|
|
err(1, "shutdown");
|
|
|
|
if (close(s))
|
|
|
|
err(1, "close");
|
|
|
|
return ((u_int32_t)ifrdat.ifi_baudrate);
|
|
|
|
}
|
2004-02-28 17:32:53 +00:00
|
|
|
#endif
|
2004-02-28 16:52:45 +00:00
|
|
|
|
|
|
|
u_long
|
|
|
|
getifmtu(char *ifname)
|
|
|
|
{
|
|
|
|
int s;
|
|
|
|
struct ifreq ifr;
|
|
|
|
|
|
|
|
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
|
|
|
|
err(1, "socket");
|
2005-05-03 16:55:20 +00:00
|
|
|
bzero(&ifr, sizeof(ifr));
|
2004-02-28 16:52:45 +00:00
|
|
|
if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) >=
|
|
|
|
sizeof(ifr.ifr_name))
|
|
|
|
errx(1, "getifmtu: strlcpy");
|
|
|
|
if (ioctl(s, SIOCGIFMTU, (caddr_t)&ifr) == -1)
|
2008-03-29 00:24:36 +00:00
|
|
|
#ifdef __FreeBSD__
|
|
|
|
ifr.ifr_mtu = 1500;
|
|
|
|
#else
|
2004-02-28 16:52:45 +00:00
|
|
|
err(1, "SIOCGIFMTU");
|
2008-03-29 00:24:36 +00:00
|
|
|
#endif
|
2004-02-28 16:52:45 +00:00
|
|
|
if (shutdown(s, SHUT_RDWR) == -1)
|
|
|
|
err(1, "shutdown");
|
|
|
|
if (close(s))
|
|
|
|
err(1, "close");
|
|
|
|
if (ifr.ifr_mtu > 0)
|
|
|
|
return (ifr.ifr_mtu);
|
|
|
|
else {
|
|
|
|
warnx("could not get mtu for %s, assuming 1500", ifname);
|
|
|
|
return (1500);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
eval_queue_opts(struct pf_altq *pa, struct node_queue_opt *opts,
|
|
|
|
u_int32_t ref_bw)
|
|
|
|
{
|
|
|
|
int errors = 0;
|
|
|
|
|
|
|
|
switch (pa->scheduler) {
|
|
|
|
case ALTQT_CBQ:
|
|
|
|
pa->pq_u.cbq_opts = opts->data.cbq_opts;
|
|
|
|
break;
|
|
|
|
case ALTQT_PRIQ:
|
|
|
|
pa->pq_u.priq_opts = opts->data.priq_opts;
|
|
|
|
break;
|
|
|
|
case ALTQT_HFSC:
|
|
|
|
pa->pq_u.hfsc_opts.flags = opts->data.hfsc_opts.flags;
|
|
|
|
if (opts->data.hfsc_opts.linkshare.used) {
|
|
|
|
pa->pq_u.hfsc_opts.lssc_m1 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.linkshare.m1,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.lssc_m2 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.linkshare.m2,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.lssc_d =
|
|
|
|
opts->data.hfsc_opts.linkshare.d;
|
|
|
|
}
|
|
|
|
if (opts->data.hfsc_opts.realtime.used) {
|
|
|
|
pa->pq_u.hfsc_opts.rtsc_m1 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.realtime.m1,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.rtsc_m2 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.realtime.m2,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.rtsc_d =
|
|
|
|
opts->data.hfsc_opts.realtime.d;
|
|
|
|
}
|
|
|
|
if (opts->data.hfsc_opts.upperlimit.used) {
|
|
|
|
pa->pq_u.hfsc_opts.ulsc_m1 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.upperlimit.m1,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.ulsc_m2 =
|
|
|
|
eval_bwspec(&opts->data.hfsc_opts.upperlimit.m2,
|
|
|
|
ref_bw);
|
|
|
|
pa->pq_u.hfsc_opts.ulsc_d =
|
|
|
|
opts->data.hfsc_opts.upperlimit.d;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
warnx("eval_queue_opts: unknown scheduler type %u",
|
|
|
|
opts->qtype);
|
|
|
|
errors++;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (errors);
|
|
|
|
}
|
|
|
|
|
|
|
|
u_int32_t
|
|
|
|
eval_bwspec(struct node_queue_bw *bw, u_int32_t ref_bw)
|
|
|
|
{
|
|
|
|
if (bw->bw_absolute > 0)
|
|
|
|
return (bw->bw_absolute);
|
|
|
|
|
|
|
|
if (bw->bw_percent > 0)
|
|
|
|
return (ref_bw / 100 * bw->bw_percent);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
print_hfsc_sc(const char *scname, u_int m1, u_int d, u_int m2,
|
|
|
|
const struct node_hfsc_sc *sc)
|
|
|
|
{
|
|
|
|
printf(" %s", scname);
|
|
|
|
|
|
|
|
if (d != 0) {
|
|
|
|
printf("(");
|
|
|
|
if (sc != NULL && sc->m1.bw_percent > 0)
|
|
|
|
printf("%u%%", sc->m1.bw_percent);
|
|
|
|
else
|
|
|
|
printf("%s", rate2str((double)m1));
|
|
|
|
printf(" %u", d);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sc != NULL && sc->m2.bw_percent > 0)
|
|
|
|
printf(" %u%%", sc->m2.bw_percent);
|
|
|
|
else
|
|
|
|
printf(" %s", rate2str((double)m2));
|
|
|
|
|
|
|
|
if (d != 0)
|
|
|
|
printf(")");
|
|
|
|
}
|