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Break out altq_enable/disable from DIOC{START,STOP}ALTQ into seprate

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functions that can be called from enable/disable pf as well. This improves
switching from non-altq ruleset to altq ruleset (and the other way 'round)
by a great deal and makes pfctl act like the user would except it to.

PR:		kern/71746
Tested by:	Aurilien "beorn" Rougemont (PR submitter)
MFC after:	3 days
This commit is contained in:
Max Laier 2004-09-17 02:15:05 +00:00
parent f6b6294fc2
commit abd627ebb7
1 changed files with 83 additions and 41 deletions
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124
sys/contrib/pf/net/pf_ioctl.c
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@ -1,5 +1,6 @@
/* $FreeBSD$ */
/* $OpenBSD: pf_ioctl.c,v 1.112.2.2 2004/07/24 18:28:12 brad Exp $ */
/* add $OpenBSD: pf_ioctl.c,v 1.118 2004/05/03 07:51:59 kjc Exp $ */
/*
* Copyright (c) 2001 Daniel Hartmeier
@ -132,6 +133,8 @@ int pfioctl(struct cdev *, u_long, caddr_t, int, struct proc *);
int pf_begin_altq(u_int32_t *);
int pf_rollback_altq(u_int32_t);
int pf_commit_altq(u_int32_t);
int pf_enable_altq(struct pf_altq *);
int pf_disable_altq(struct pf_altq *);
#endif /* ALTQ */
int pf_begin_rules(u_int32_t *, int, char *, char *);
int pf_rollback_rules(u_int32_t, int, char *, char *);
@ -144,6 +147,9 @@ extern struct timeout pf_expire_to;
#endif
struct pf_rule pf_default_rule;
#ifdef ALTQ
static int pf_altq_running;
#endif
#define TAGID_MAX 50000
TAILQ_HEAD(pf_tags, pf_tagname) pf_tags = TAILQ_HEAD_INITIALIZER(pf_tags),
@ -866,7 +872,9 @@ pf_commit_altq(u_int32_t ticket)
if (altq->qname[0] == 0) {
/* attach the discipline */
error = altq_pfattach(altq);
if (error) {
if (error == 0 && pf_altq_running)
error = pf_enable_altq(altq);
if (error != 0) {
splx(s);
return (error);
}
@ -878,6 +886,8 @@ pf_commit_altq(u_int32_t ticket)
TAILQ_REMOVE(pf_altqs_inactive, altq, entries);
if (altq->qname[0] == 0) {
/* detach and destroy the discipline */
if (pf_altq_running)
error = pf_disable_altq(altq);
err = altq_pfdetach(altq);
if (err != 0 && error == 0)
error = err;
@ -893,6 +903,73 @@ pf_commit_altq(u_int32_t ticket)
altqs_inactive_open = 0;
return (error);
}
int
pf_enable_altq(struct pf_altq *altq)
{
struct ifnet *ifp;
struct tb_profile tb;
int s, error = 0;
if ((ifp = ifunit(altq->ifname)) == NULL)
return (EINVAL);
if (ifp->if_snd.altq_type != ALTQT_NONE)
error = altq_enable(&ifp->if_snd);
/* set tokenbucket regulator */
if (error == 0 && ifp != NULL && ALTQ_IS_ENABLED(&ifp->if_snd)) {
tb.rate = altq->ifbandwidth;
tb.depth = altq->tbrsize;
s = splimp();
#ifdef __FreeBSD__
PF_UNLOCK();
#endif
error = tbr_set(&ifp->if_snd, &tb);
#ifdef __FreeBSD__
PF_LOCK();
#endif
splx(s);
}
return (error);
}
int
pf_disable_altq(struct pf_altq *altq)
{
struct ifnet *ifp;
struct tb_profile tb;
int s, error;
if ((ifp = ifunit(altq->ifname)) == NULL)
return (EINVAL);
/*
* when the discipline is no longer referenced, it was overridden
* by a new one. if so, just return.
*/
if (altq->altq_disc != ifp->if_snd.altq_disc)
return (0);
error = altq_disable(&ifp->if_snd);
if (error == 0) {
/* clear tokenbucket regulator */
tb.rate = 0;
s = splimp();
#ifdef __FreeBSD__
PF_UNLOCK();
#endif
error = tbr_set(&ifp->if_snd, &tb);
#ifdef __FreeBSD__
PF_LOCK();
#endif
splx(s);
}
return (error);
}
#endif /* ALTQ */
int
@ -1957,35 +2034,18 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct proc *p)
#ifdef ALTQ
case DIOCSTARTALTQ: {
struct pf_altq *altq;
struct ifnet *ifp;
struct tb_profile tb;
/* enable all altq interfaces on active list */
s = splsoftnet();
TAILQ_FOREACH(altq, pf_altqs_active, entries) {
if (altq->qname[0] == 0) {
if ((ifp = ifunit(altq->ifname)) == NULL) {
error = EINVAL;
break;
}
if (ifp->if_snd.altq_type != ALTQT_NONE)
error = altq_enable(&ifp->if_snd);
if (error != 0)
break;
/* set tokenbucket regulator */
tb.rate = altq->ifbandwidth;
tb.depth = altq->tbrsize;
PF_UNLOCK();
error = tbr_set(&ifp->if_snd, &tb);
PF_LOCK();
error = pf_enable_altq(altq);
if (error != 0)
break;
}
}
#ifndef __FreeBSD__
if (error == 0)
pfaltq_running = 1;
#endif
pf_altq_running = 1;
splx(s);
DPFPRINTF(PF_DEBUG_MISC, ("altq: started\n"));
break;
@ -1993,36 +2053,18 @@ pfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct proc *p)
case DIOCSTOPALTQ: {
struct pf_altq *altq;
struct ifnet *ifp;
struct tb_profile tb;
int err;
/* disable all altq interfaces on active list */
s = splsoftnet();
TAILQ_FOREACH(altq, pf_altqs_active, entries) {
if (altq->qname[0] == 0) {
if ((ifp = ifunit(altq->ifname)) == NULL) {
error = EINVAL;
error = pf_disable_altq(altq);
if (error != 0)
break;
}
if (ifp->if_snd.altq_type != ALTQT_NONE) {
err = altq_disable(&ifp->if_snd);
if (err != 0 && error == 0)
error = err;
}
/* clear tokenbucket regulator */
tb.rate = 0;
PF_UNLOCK();
err = tbr_set(&ifp->if_snd, &tb);
PF_LOCK();
if (err != 0 && error == 0)
error = err;
}
}
#ifndef __FreeBSD__
if (error == 0)
pfaltq_running = 0;
#endif
pf_altq_running = 0;
splx(s);
DPFPRINTF(PF_DEBUG_MISC, ("altq: stopped\n"));
break;