usr.sbin/altq/libaltq/qop_dummy.c

   1 /*      $NetBSD: qop_dummy.c,v 1.6 2001/12/31 19:31:23 thorpej Exp $    */
   2 /*      $KAME: qop_dummy.c,v 1.5 2001/12/03 08:20:55 kjc Exp $  */
   3 /*
   4  * Copyright (C) 1999-2000
   5  *      Sony Computer Science Laboratories, Inc.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/param.h>
  30 #include <sys/socket.h>
  31 #include <net/if.h>
  32 #include <stdio.h>
  33 #include <errno.h>
  34 #include <syslog.h>
  35 #include <string.h>
  36
  37 #include <altq/altq.h>
  38 #include "altq_qop.h"
  39
  40 int null_interface_parser(const char *, int, char **);
  41 int null_class_parser(const char *, const char *, const char *, int, char **);
  42 int qcmd_nop_add_if(const char *);
  43 static int nop_attach(struct ifinfo *);
  44 static int nop_detach(struct ifinfo *);
  45 static int nop_clear(struct ifinfo *);
  46 static int nop_enable(struct ifinfo *);
  47 static int nop_disable(struct ifinfo *);
  48 static int nop_add_class(struct classinfo *);
  49 static int nop_modify_class(struct classinfo *, void *);
  50 static int nop_delete_class(struct classinfo *);
  51 static int nop_add_filter(struct fltrinfo *);
  52 static int nop_delete_filter(struct fltrinfo *);
  53
  54 struct qdisc_ops nop_qdisc = {
  55         ALTQT_NONE,
  56         "nop",
  57         nop_attach,
  58         nop_detach,
  59         nop_clear,
  60         nop_enable,
  61         nop_disable,
  62         nop_add_class,
  63         nop_modify_class,
  64         nop_delete_class,
  65         nop_add_filter,
  66         nop_delete_filter,
  67 };
  68
  69 #define EQUAL(s1, s2)   (strcmp((s1), (s2)) == 0)
  70
  71 /*
  72  * parser interface for null interface
  73  */
  74 int
  75 null_interface_parser(const char *ifname, int argc, char **argv)
  76 {
  77         u_int   bandwidth = 0;
  78         u_int   tbrsize = 0;
  79
  80         /*
  81          * process options
  82          */
  83         while (argc > 0) {
  84                 if (EQUAL(*argv, "bandwidth")) {
  85                         argc--; argv++;
  86                         if (argc > 0)
  87                                 bandwidth = atobps(*argv);
  88                 } else if (EQUAL(*argv, "tbrsize")) {
  89                         argc--; argv++;
  90                         if (argc > 0)
  91                                 tbrsize = atobytes(*argv);
  92                 } else {
  93                         LOG(LOG_ERR, 0, "Unknown keyword '%s'", *argv);
  94                         return (0);
  95                 }
  96                 argc--; argv++;
  97         }
  98
  99         if (bandwidth != 0)
 100                 if (qcmd_tbr_register(ifname, bandwidth, tbrsize) != 0)
 101                         return (0);
 102
 103         /*
 104          * add a dummy interface since traffic conditioner might need it.
 105          */
 106         if (qcmd_nop_add_if(ifname) != 0)
 107                 return (0);
 108         return (1);
 109 }
 110
 111 int
 112 null_class_parser(const char *ifname, const char *class_name,
 113                   const char *parent_name, int argc, char **argv)
 114 {
 115         LOG(LOG_ERR, 0,
 116             "class cannot be defined without a queueing discipline in %s, line %d",
 117             altqconfigfile, line_no);
 118         return (0);
 119 }
 120
 121 /*
 122  * qcmd api
 123  */
 124 int
 125 qcmd_nop_add_if(const char *ifname)
 126 {
 127         int error;
 128
 129         error = qop_add_if(NULL, ifname, 0, &nop_qdisc, NULL);
 130         if (error != 0)
 131                 LOG(LOG_ERR, errno, "%s: can't add nop on interface '%s'",
 132                     qoperror(error), ifname);
 133         return (error);
 134 }
 135
 136 /*
 137  * qop api
 138  */
 139 static int nop_attach(struct ifinfo *ifinfo)
 140 {
 141         return (0);
 142 }
 143
 144 static int nop_detach(struct ifinfo *ifinfo)
 145 {
 146         return (0);
 147 }
 148
 149 static int nop_clear(struct ifinfo *ifinfo)
 150 {
 151         return (0);
 152 }
 153
 154 static int nop_enable(struct ifinfo *ifinfo)
 155 {
 156         return (0);
 157 }
 158
 159 static int nop_disable(struct ifinfo *ifinfo)
 160 {
 161         return (0);
 162 }
 163
 164 static int nop_add_class(struct classinfo *clinfo)
 165 {
 166         return (0);
 167 }
 168
 169 static int nop_modify_class(struct classinfo *clinfo, void *arg)
 170 {
 171         return (0);
 172 }
 173
 174 static int nop_delete_class(struct classinfo *clinfo)
 175 {
 176         return (0);
 177 }
 178
 179 static int nop_add_filter(struct fltrinfo *fltrinfo)
 180 {
 181         return (0);
 182 }
 183
 184 static int nop_delete_filter(struct fltrinfo *fltrinfo)
 185 {
 186         return (0);
 187 }