1122394Sharti/* 2122394Sharti * Copyright (c) 2001-2003 3122394Sharti * Fraunhofer Institute for Open Communication Systems (FhG Fokus). 4122394Sharti * All rights reserved. 5122394Sharti * 6122394Sharti * Author: Harti Brandt <harti@freebsd.org> 7310901Sngie * 8133211Sharti * Redistribution and use in source and binary forms, with or without 9133211Sharti * modification, are permitted provided that the following conditions 10133211Sharti * are met: 11133211Sharti * 1. Redistributions of source code must retain the above copyright 12133211Sharti * notice, this list of conditions and the following disclaimer. 13122394Sharti * 2. Redistributions in binary form must reproduce the above copyright 14122394Sharti * notice, this list of conditions and the following disclaimer in the 15122394Sharti * documentation and/or other materials provided with the distribution. 16310901Sngie * 17133211Sharti * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18133211Sharti * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19133211Sharti * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20133211Sharti * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 21133211Sharti * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22133211Sharti * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23133211Sharti * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24133211Sharti * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25133211Sharti * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26133211Sharti * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27133211Sharti * SUCH DAMAGE. 28122394Sharti * 29133211Sharti * $Begemot: bsnmp/snmp_mibII/mibII_rcvaddr.c,v 1.9 2004/08/06 08:47:03 brandt Exp $ 30122394Sharti * 31122394Sharti * Interface receive address table. 32122394Sharti */ 33122394Sharti#include "mibII.h" 34122394Sharti#include "mibII_oid.h" 35122394Sharti 36122394Sharti/* 37122394Sharti * find receive address 38122394Sharti */ 39122394Shartistruct mibrcvaddr * 40122394Shartimib_find_rcvaddr(u_int ifindex, const u_char *addr, size_t addrlen) 41122394Sharti{ 42122394Sharti struct mibrcvaddr *rcv; 43122394Sharti 44122394Sharti TAILQ_FOREACH(rcv, &mibrcvaddr_list, link) 45122394Sharti if (rcv->ifindex == ifindex && 46122394Sharti rcv->addrlen == addrlen && 47122394Sharti memcmp(rcv->addr, addr, addrlen) == 0) 48122394Sharti return (rcv); 49122394Sharti return (NULL); 50122394Sharti} 51122394Sharti 52122394Sharti/* 53122394Sharti * Create receive address 54122394Sharti */ 55122394Shartistruct mibrcvaddr * 56122394Shartimib_rcvaddr_create(struct mibif *ifp, const u_char *addr, size_t addrlen) 57122394Sharti{ 58122394Sharti struct mibrcvaddr *rcv; 59122394Sharti u_int i; 60122394Sharti 61122394Sharti if (addrlen + OIDLEN_ifRcvAddressEntry + 1 > ASN_MAXOIDLEN) 62122394Sharti return (NULL); 63122394Sharti 64122394Sharti if ((rcv = malloc(sizeof(*rcv))) == NULL) 65122394Sharti return (NULL); 66122394Sharti rcv->ifindex = ifp->index; 67122394Sharti rcv->addrlen = addrlen; 68122394Sharti memcpy(rcv->addr, addr, addrlen); 69122394Sharti rcv->flags = 0; 70122394Sharti 71122394Sharti rcv->index.len = addrlen + 2; 72122394Sharti rcv->index.subs[0] = ifp->index; 73122394Sharti rcv->index.subs[1] = addrlen; 74122394Sharti for (i = 0; i < addrlen; i++) 75122394Sharti rcv->index.subs[i + 2] = addr[i]; 76122394Sharti 77122394Sharti INSERT_OBJECT_OID(rcv, &mibrcvaddr_list); 78122394Sharti 79122394Sharti return (rcv); 80122394Sharti} 81122394Sharti 82122394Sharti/* 83122394Sharti * Delete a receive address 84122394Sharti */ 85122394Shartivoid 86122394Shartimib_rcvaddr_delete(struct mibrcvaddr *rcv) 87122394Sharti{ 88122394Sharti TAILQ_REMOVE(&mibrcvaddr_list, rcv, link); 89122394Sharti free(rcv); 90122394Sharti} 91122394Sharti 92122394Shartiint 93122394Shartiop_rcvaddr(struct snmp_context *ctx __unused, struct snmp_value *value, 94122394Sharti u_int sub, u_int iidx __unused, enum snmp_op op) 95122394Sharti{ 96122394Sharti struct mibrcvaddr *rcv; 97122394Sharti 98122394Sharti rcv = NULL; /* make compiler happy */ 99122394Sharti 100122394Sharti switch (op) { 101122394Sharti 102122394Sharti case SNMP_OP_GETNEXT: 103122394Sharti if ((rcv = NEXT_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL) 104122394Sharti return (SNMP_ERR_NOSUCHNAME); 105122394Sharti index_append(&value->var, sub, &rcv->index); 106122394Sharti break; 107122394Sharti 108122394Sharti case SNMP_OP_GET: 109122394Sharti if ((rcv = FIND_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL) 110122394Sharti return (SNMP_ERR_NOSUCHNAME); 111122394Sharti break; 112122394Sharti 113122394Sharti case SNMP_OP_SET: 114122394Sharti if ((rcv = FIND_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL) 115122394Sharti return (SNMP_ERR_NO_CREATION); 116122394Sharti return (SNMP_ERR_NOT_WRITEABLE); 117122394Sharti 118122394Sharti case SNMP_OP_ROLLBACK: 119122394Sharti case SNMP_OP_COMMIT: 120122394Sharti abort(); 121122394Sharti } 122122394Sharti 123122394Sharti switch (value->var.subs[sub - 1]) { 124122394Sharti 125122394Sharti case LEAF_ifRcvAddressStatus: 126122394Sharti value->v.integer = 1; 127122394Sharti break; 128122394Sharti 129122394Sharti case LEAF_ifRcvAddressType: 130122394Sharti value->v.integer = (rcv->flags & MIBRCVADDR_VOLATILE) ? 2 : 3; 131122394Sharti break; 132122394Sharti } 133122394Sharti return (SNMP_ERR_NOERROR); 134122394Sharti} 135