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qop_dummy.c revision 1.1 
      1 /*	$KAME: qop_dummy.c,v 1.2 2000/10/18 09:15:19 kjc Exp $	*/
      2 /*
      3  * Copyright (C) 1999-2000
      4  *	Sony Computer Science Laboratories, Inc.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
     16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/param.h>
     29 #include <sys/socket.h>
     30 #include <net/if.h>
     31 #include <stdio.h>
     32 #include <errno.h>
     33 #include <syslog.h>
     34 
     35 #include <altq/altq.h>
     36 #include "altq_qop.h"
     37 
     38 int null_interface_parser(const char *ifname, int argc, char **argv);
     39 int null_class_parser(const char *ifname, const char *class_name,
     40 		      const char *parent_name, int argc, char **argv);
     41 int qcmd_nop_add_if(const char *ifname);
     42 static int nop_attach(struct ifinfo *ifinfo);
     43 static int nop_detach(struct ifinfo *ifinfo);
     44 static int nop_clear(struct ifinfo *ifinfo);
     45 static int nop_enable(struct ifinfo *ifinfo);
     46 static int nop_disable(struct ifinfo *ifinfo);
     47 static int nop_add_class(struct classinfo *clinfo);
     48 static int nop_modify_class(struct classinfo *clinfo, void *arg);
     49 static int nop_delete_class(struct classinfo *clinfo);
     50 static int nop_add_filter(struct fltrinfo *fltrinfo);
     51 static int nop_delete_filter(struct fltrinfo *fltrinfo);
     52 
     53 struct qdisc_ops nop_qdisc = {
     54 	ALTQT_NONE,
     55 	"nop",
     56 	nop_attach,
     57 	nop_detach,
     58 	nop_clear,
     59 	nop_enable,
     60 	nop_disable,
     61 	nop_add_class,
     62 	nop_modify_class,
     63 	nop_delete_class,
     64 	nop_add_filter,
     65 	nop_delete_filter,
     66 };
     67 
     68 #define EQUAL(s1, s2)	(strcmp((s1), (s2)) == 0)
     69 
     70 /*
     71  * parser interface for null interface
     72  */
     73 int
     74 null_interface_parser(const char *ifname, int argc, char **argv)
     75 {
     76 	u_int  	bandwidth = 0;
     77 	u_int	tbrsize = 0;
     78 
     79 	/*
     80 	 * process options
     81 	 */
     82 	while (argc > 0) {
     83 		if (EQUAL(*argv, "bandwidth")) {
     84 			argc--; argv++;
     85 			if (argc > 0)
     86 				bandwidth = atobps(*argv);
     87 		} else if (EQUAL(*argv, "tbrsize")) {
     88 			argc--; argv++;
     89 			if (argc > 0)
     90 				tbrsize = atobytes(*argv);
     91 		} else {
     92 			LOG(LOG_ERR, 0, "Unknown keyword '%s'\n", argv);
     93 			return (0);
     94 		}
     95 		argc--; argv++;
     96 	}
     97 
     98 	if (bandwidth != 0)
     99 		if (qcmd_tbr_register(ifname, bandwidth, tbrsize) != 0)
    100 			return (0);
    101 
    102 	/*
    103 	 * add a dummy interface since traffic conditioner might need it.
    104 	 */
    105 	if (qcmd_nop_add_if(ifname) != 0)
    106 		return (0);
    107 	return (1);
    108 }
    109 
    110 int
    111 null_class_parser(const char *ifname, const char *class_name,
    112 		  const char *parent_name, int argc, char **argv)
    113 {
    114 	LOG(LOG_ERR, 0,
    115 	    "class cannot be defined without a queueing discipline in %s, line %d\n",
    116 	    altqconfigfile, line_no);
    117 	return (0);
    118 }
    119 
    120 /*
    121  * qcmd api
    122  */
    123 int
    124 qcmd_nop_add_if(const char *ifname)
    125 {
    126 	int error;
    127 
    128 	error = qop_add_if(NULL, ifname, 0, &nop_qdisc, NULL);
    129 	if (error != 0)
    130 		LOG(LOG_ERR, errno, "%s: can't add nop on interface '%s'\n",
    131 		    qoperror(error), ifname);
    132 	return (error);
    133 }
    134 
    135 /*
    136  * qop api
    137  */
    138 static int nop_attach(struct ifinfo *ifinfo)
    139 {
    140 	return (0);
    141 }
    142 
    143 static int nop_detach(struct ifinfo *ifinfo)
    144 {
    145 	return (0);
    146 }
    147 
    148 static int nop_clear(struct ifinfo *ifinfo)
    149 {
    150 	return (0);
    151 }
    152 
    153 static int nop_enable(struct ifinfo *ifinfo)
    154 {
    155 	return (0);
    156 }
    157 
    158 static int nop_disable(struct ifinfo *ifinfo)
    159 {
    160 	return (0);
    161 }
    162 
    163 static int nop_add_class(struct classinfo *clinfo)
    164 {
    165 	return (0);
    166 }
    167 
    168 static int nop_modify_class(struct classinfo *clinfo, void *arg)
    169 {
    170 	return (0);
    171 }
    172 
    173 static int nop_delete_class(struct classinfo *clinfo)
    174 {
    175 	return (0);
    176 }
    177 
    178 static int nop_add_filter(struct fltrinfo *fltrinfo)
    179 {
    180 	return (0);
    181 }
    182 
    183 static int nop_delete_filter(struct fltrinfo *fltrinfo)
    184 {
    185 	return (0);
    186 }
    187