460 lines
10 KiB
C
460 lines
10 KiB
C
/* $NetBSD: altq_conf.c,v 1.4 2000/12/14 23:50:43 thorpej Exp $ */
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/* $KAME: altq_conf.c,v 1.10 2000/12/14 08:12:45 thorpej Exp $ */
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/*
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* Copyright (C) 1997-2000
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* Sony Computer Science Laboratories Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(__FreeBSD__) || defined(__NetBSD__)
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#include "opt_altq.h"
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#if (__FreeBSD__ != 2)
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#include "opt_inet.h"
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#ifdef __FreeBSD__
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#include "opt_inet6.h"
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#endif
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#endif
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#endif /* __FreeBSD__ || __NetBSD__ */
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/*
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* altq device interface.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/socket.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/errno.h>
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#if defined(__FreeBSD__) && (__FreeBSD_version < 400000) && defined(DEVFS)
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#include <sys/devfsext.h>
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#endif /*DEVFS*/
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#include <net/if.h>
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#include <altq/altq.h>
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#include <altq/altq_conf.h>
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#ifdef ALTQ_CBQ
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altqdev_decl(cbq);
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#endif
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#ifdef ALTQ_WFQ
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altqdev_decl(wfq);
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#endif
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#ifdef ALTQ_AFMAP
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altqdev_decl(afm);
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#endif
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#ifdef ALTQ_FIFOQ
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altqdev_decl(fifoq);
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#endif
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#ifdef ALTQ_RED
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altqdev_decl(red);
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#endif
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#ifdef ALTQ_RIO
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altqdev_decl(rio);
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#endif
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#ifdef ALTQ_LOCALQ
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altqdev_decl(localq);
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#endif
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#ifdef ALTQ_HFSC
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altqdev_decl(hfsc);
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#endif
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#ifdef ALTQ_CDNR
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altqdev_decl(cdnr);
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#endif
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#ifdef ALTQ_BLUE
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altqdev_decl(blue);
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#endif
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#ifdef ALTQ_PRIQ
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altqdev_decl(priq);
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#endif
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/*
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* altq minor device (discipline) table
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*/
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static struct altqsw altqsw[] = { /* minor */
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{"noq", noopen, noclose, noioctl}, /* 0 (reserved) */
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#ifdef ALTQ_CBQ
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{"cbq", cbqopen, cbqclose, cbqioctl}, /* 1 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 1 */
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#endif
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#ifdef ALTQ_WFQ
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{"wfq", wfqopen, wfqclose, wfqioctl}, /* 2 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 2 */
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#endif
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#ifdef ALTQ_AFMAP
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{"afm", afmopen, afmclose, afmioctl}, /* 3 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 3 */
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#endif
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#ifdef ALTQ_FIFOQ
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{"fifoq", fifoqopen, fifoqclose, fifoqioctl}, /* 4 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 4 */
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#endif
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#ifdef ALTQ_RED
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{"red", redopen, redclose, redioctl}, /* 5 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 5 */
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#endif
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#ifdef ALTQ_RIO
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{"rio", rioopen, rioclose, rioioctl}, /* 6 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 6 */
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#endif
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#ifdef ALTQ_LOCALQ
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{"localq",localqopen, localqclose, localqioctl}, /* 7 (local use) */
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#else
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{"noq", noopen, noclose, noioctl}, /* 7 (local use) */
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#endif
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#ifdef ALTQ_HFSC
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{"hfsc",hfscopen, hfscclose, hfscioctl}, /* 8 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 8 */
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#endif
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#ifdef ALTQ_CDNR
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{"cdnr",cdnropen, cdnrclose, cdnrioctl}, /* 9 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 9 */
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#endif
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#ifdef ALTQ_BLUE
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{"blue",blueopen, blueclose, blueioctl}, /* 10 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 10 */
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#endif
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#ifdef ALTQ_PRIQ
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{"priq",priqopen, priqclose, priqioctl}, /* 11 */
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#else
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{"noq", noopen, noclose, noioctl}, /* 11 */
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#endif
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};
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/*
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* altq major device support
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*/
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int naltqsw = sizeof (altqsw) / sizeof (altqsw[0]);
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#if !defined(__NetBSD__) && defined(__OpenBSD__)
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static d_open_t altqopen;
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static d_close_t altqclose;
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static d_ioctl_t altqioctl;
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#endif
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#ifdef __FreeBSD__
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static void altq_drvinit __P((void *));
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#else
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void altqattach __P((int));
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#endif
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#if defined(__FreeBSD__)
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#define CDEV_MAJOR 96 /* FreeBSD official number */
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#elif defined(__OpenBSD__)
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#if defined(__i386__)
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#define CDEV_MAJOR 67 /* OpenBSD i386 (not official) */
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#elif defined(__alpha__)
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#define CDEV_MAJOR 52 /* OpenBSD alpha (not official) */
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#else
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#error arch not supported
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#endif
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#endif
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#if defined(__FreeBSD__)
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#if (__FreeBSD_version < 400000)
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static struct cdevsw altq_cdevsw =
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{ altqopen, altqclose, noread, nowrite,
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altqioctl, nostop, nullreset, nodevtotty,
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seltrue, nommap, NULL, "altq", NULL, -1 };
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#else
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static struct cdevsw altq_cdevsw =
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{ altqopen, altqclose, noread, nowrite,
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altqioctl, seltrue, nommap, nostrategy,
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"altq", CDEV_MAJOR, nodump, nopsize, 0, -1 };
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#endif
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#elif defined(__OpenBSD__)
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static struct cdevsw altq_cdevsw = {
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altqopen, altqclose, 0, 0, altqioctl, 0,
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0, 0, 0, 0 };
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#endif
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#if !defined(__NetBSD__) && !defined(__OpenBSD__)
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static
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#endif
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int
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altqopen(dev, flag, fmt, p)
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dev_t dev;
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int flag, fmt;
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struct proc *p;
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{
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int unit = minor(dev);
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if (unit == 0)
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return (0);
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if (unit < naltqsw)
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return (*altqsw[unit].d_open)(dev, flag, fmt, p);
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return ENXIO;
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}
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#if !defined(__NetBSD__) && !defined(__OpenBSD__)
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static
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#endif
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int
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altqclose(dev, flag, fmt, p)
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dev_t dev;
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int flag, fmt;
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struct proc *p;
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{
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int unit = minor(dev);
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if (unit == 0)
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return (0);
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if (unit < naltqsw)
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return (*altqsw[unit].d_close)(dev, flag, fmt, p);
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return ENXIO;
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}
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#if !defined(__NetBSD__) && !defined(__OpenBSD__)
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static
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#endif
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int
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altqioctl(dev, cmd, addr, flag, p)
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dev_t dev;
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ioctlcmd_t cmd;
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caddr_t addr;
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int flag;
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struct proc *p;
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{
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int unit = minor(dev);
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if (unit == 0) {
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struct ifnet *ifp;
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struct altqreq *typereq;
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struct tbrreq *tbrreq;
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int error;
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switch (cmd) {
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case ALTQGTYPE:
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case ALTQTBRGET:
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break;
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default:
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#if (__FreeBSD_version > 400000)
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if ((error = suser(p)) != 0)
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return (error);
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#else
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if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
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return (error);
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#endif
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break;
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}
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switch (cmd) {
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case ALTQGTYPE:
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typereq = (struct altqreq *)addr;
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if ((ifp = ifunit(typereq->ifname)) == NULL)
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return (EINVAL);
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typereq->arg = (u_long)ifp->if_snd.altq_type;
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return (0);
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case ALTQTBRSET:
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tbrreq = (struct tbrreq *)addr;
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if ((ifp = ifunit(tbrreq->ifname)) == NULL)
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return (EINVAL);
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return tbr_set(&ifp->if_snd, &tbrreq->tb_prof);
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case ALTQTBRGET:
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tbrreq = (struct tbrreq *)addr;
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if ((ifp = ifunit(tbrreq->ifname)) == NULL)
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return (EINVAL);
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return tbr_get(&ifp->if_snd, &tbrreq->tb_prof);
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default:
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return (EINVAL);
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}
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}
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if (unit < naltqsw)
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return (*altqsw[unit].d_ioctl)(dev, cmd, addr, flag, p);
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return ENXIO;
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}
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#if !defined(__NetBSD__)
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static int altq_devsw_installed = 0;
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#endif
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#ifdef __FreeBSD__
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#if (__FreeBSD_version < 400000)
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#ifdef DEVFS
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static void *altq_devfs_token[sizeof (altqsw) / sizeof (altqsw[0])];
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#endif
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static void
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altq_drvinit(unused)
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void *unused;
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{
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dev_t dev;
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#ifdef DEVFS
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int i;
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#endif
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if (!altq_devsw_installed) {
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dev = makedev(CDEV_MAJOR,0);
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cdevsw_add(&dev,&altq_cdevsw,NULL);
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altq_devsw_installed = 1;
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#ifdef DEVFS
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for (i=0; i<naltqsw; i++)
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altq_devfs_token[i] =
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devfs_add_devswf(&altq_cdevsw, i, DV_CHR,
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0, 0, 0644, altqsw[i].d_name);
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#endif
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printf("altq: major number is %d\n", CDEV_MAJOR);
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}
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}
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#else /* FreeBSD 4.x */
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static void
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altq_drvinit(unused)
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void *unused;
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{
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int unit;
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cdevsw_add(&altq_cdevsw);
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altq_devsw_installed = 1;
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printf("altq: major number is %d\n", CDEV_MAJOR);
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/* create minor devices */
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for (unit = 0; unit < naltqsw; unit++)
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make_dev(&altq_cdevsw, unit, 0, 0, 0644,
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altqsw[unit].d_name);
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}
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#endif /* FreeBSD 4.x */
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SYSINIT(altqdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,altq_drvinit,NULL)
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#elif defined(__OpenBSD__)
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void
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altqattach(int unused)
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{
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if (!altq_devsw_installed) {
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bcopy(&altq_cdevsw,
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&cdevsw[CDEV_MAJOR],
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sizeof(struct cdevsw));
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altq_devsw_installed = 1;
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printf("altq: major number is %d\n", CDEV_MAJOR);
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}
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}
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#elif defined(__NetBSD__)
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/* NetBSD requires no altqattach() */
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#else
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#error altqattach()??
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#endif
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#ifdef ALTQ_KLD
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/*
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* KLD support
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*/
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static int altq_module_register __P((struct altq_module_data *));
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static int altq_module_deregister __P((struct altq_module_data *));
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static struct altq_module_data *altq_modules[ALTQT_MAX];
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static struct altqsw noqdisc = {"noq", noopen, noclose, noioctl};
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void altq_module_incref(type)
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int type;
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{
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if (type < 0 || type >= ALTQT_MAX || altq_modules[type] == NULL)
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return;
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altq_modules[type]->ref++;
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}
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void altq_module_declref(type)
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int type;
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{
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if (type < 0 || type >= ALTQT_MAX || altq_modules[type] == NULL)
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return;
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altq_modules[type]->ref--;
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}
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static int
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altq_module_register(mdata)
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struct altq_module_data *mdata;
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{
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int type = mdata->type;
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if (type < 0 || type >= ALTQT_MAX)
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return (EINVAL);
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if (altqsw[type].d_open != noopen)
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return (EBUSY);
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altqsw[type] = *mdata->altqsw; /* set discipline functions */
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altq_modules[type] = mdata; /* save module data pointer */
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return (0);
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}
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static int
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altq_module_deregister(mdata)
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struct altq_module_data *mdata;
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{
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int type = mdata->type;
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if (type < 0 || type >= ALTQT_MAX)
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return (EINVAL);
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if (mdata != altq_modules[type])
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return (EINVAL);
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if (altq_modules[type]->ref > 0)
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return (EBUSY);
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altqsw[type] = noqdisc;
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altq_modules[type] = NULL;
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return (0);
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}
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int
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altq_module_handler(mod, cmd, arg)
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module_t mod;
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int cmd;
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void * arg;
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{
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struct altq_module_data *data = (struct altq_module_data *)arg;
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int error = 0;
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switch (cmd) {
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case MOD_LOAD:
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error = altq_module_register(data);
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break;
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case MOD_UNLOAD:
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error = altq_module_deregister(data);
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break;
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default:
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error = EINVAL;
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break;
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}
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return(error);
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}
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#endif /* ALTQ_KLD */
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