1 /* $NetBSD: qdisc_conf.c,v 1.3 2001/08/16 07:48:11 itojun Exp $ */ 2 /* $KAME: qdisc_conf.c,v 1.4 2001/08/15 12:51:59 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 #if defined(__NetBSD__) || defined(__OpenBSD__) 32 #include <sys/ioctl.h> 33 #endif 34 #include <sys/fcntl.h> 35 #include <net/if.h> 36 #include <netinet/in.h> 37 #include <altq/altq.h> 38 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <unistd.h> 42 #include <string.h> 43 #include <err.h> 44 45 #include "altqstat.h" 46 47 #define ALTQ_DEVICE "/dev/altq/altq" 48 49 struct qdisc_conf qdisc_table[] = { 50 {"cbq", ALTQT_CBQ, cbq_stat_loop}, 51 {"hfsc", ALTQT_HFSC, hfsc_stat_loop}, 52 {"cdnr", ALTQT_CDNR, cdnr_stat_loop}, 53 {"wfq", ALTQT_WFQ, wfq_stat_loop}, 54 {"fifoq", ALTQT_FIFOQ, fifoq_stat_loop}, 55 {"red", ALTQT_RED, red_stat_loop}, 56 {"rio", ALTQT_RIO, rio_stat_loop}, 57 {"blue", ALTQT_BLUE, blue_stat_loop}, 58 {"priq", ALTQT_PRIQ, priq_stat_loop}, 59 {NULL, 0, NULL} 60 }; 61 62 stat_loop_t * 63 qdisc2stat_loop(const char *qdisc_name) 64 { 65 struct qdisc_conf *stat; 66 67 for (stat = qdisc_table; stat->qdisc_name != NULL; stat++) 68 if (strcmp(stat->qdisc_name, qdisc_name) == 0) 69 return (stat->stat_loop); 70 return (NULL); 71 } 72 73 int 74 ifname2qdisc(const char *ifname, char *qname) 75 { 76 struct altqreq qtypereq; 77 int fd, qtype = 0; 78 79 if (ifname[0] == '_') { 80 /* input interface */ 81 if (qname != NULL) 82 strlcpy(qname, "cdnr", 64); 83 return (ALTQT_CDNR); 84 } 85 86 strlcpy(qtypereq.ifname, ifname, sizeof(qtypereq.ifname)); 87 if ((fd = open(ALTQ_DEVICE, O_RDONLY)) < 0) { 88 warn("can't open %s", ALTQ_DEVICE); 89 return (0); 90 } 91 if (ioctl(fd, ALTQGTYPE, &qtypereq) < 0) { 92 warn("ALTQGQTYPE"); 93 return (0); 94 } 95 close(fd); 96 97 if (qname != NULL) { 98 struct qdisc_conf *stat; 99 100 qtype = qtypereq.arg; 101 for (stat = qdisc_table; stat->qdisc_name != NULL; stat++) 102 if (stat->altqtype == qtype) 103 strlcpy(qname, stat->qdisc_name, 64); 104 } 105 106 return (qtype); 107 } 108 109