135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*
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* Copyright (c) 2001-2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Author: Harti Brandt <harti@freebsd.org>
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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 AUTHOR 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 AUTHOR 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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* $Begemot: bsnmp/snmp_mibII/mibII_rcvaddr.c,v 1.9 2004/08/06 08:47:03 brandt Exp $
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*
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* Interface receive address table.
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*/
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#include "mibII.h"
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#include "mibII_oid.h"
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/*
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* find receive address
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*/
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struct mibrcvaddr *
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mib_find_rcvaddr(u_int ifindex, const u_char *addr, size_t addrlen)
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{
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struct mibrcvaddr *rcv;
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TAILQ_FOREACH(rcv, &mibrcvaddr_list, link)
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if (rcv->ifindex == ifindex &&
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rcv->addrlen == addrlen &&
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memcmp(rcv->addr, addr, addrlen) == 0)
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return (rcv);
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return (NULL);
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}
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/*
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* Create receive address
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*/
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struct mibrcvaddr *
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mib_rcvaddr_create(struct mibif *ifp, const u_char *addr, size_t addrlen)
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{
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struct mibrcvaddr *rcv;
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u_int i;
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if (addrlen + OIDLEN_ifRcvAddressEntry + 1 > ASN_MAXOIDLEN)
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return (NULL);
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if ((rcv = malloc(sizeof(*rcv))) == NULL)
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return (NULL);
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rcv->ifindex = ifp->index;
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rcv->addrlen = addrlen;
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memcpy(rcv->addr, addr, addrlen);
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rcv->flags = 0;
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rcv->index.len = addrlen + 2;
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rcv->index.subs[0] = ifp->index;
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rcv->index.subs[1] = addrlen;
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for (i = 0; i < addrlen; i++)
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rcv->index.subs[i + 2] = addr[i];
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INSERT_OBJECT_OID(rcv, &mibrcvaddr_list);
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return (rcv);
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}
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/*
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* Delete a receive address
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*/
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void
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mib_rcvaddr_delete(struct mibrcvaddr *rcv)
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{
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TAILQ_REMOVE(&mibrcvaddr_list, rcv, link);
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free(rcv);
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}
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int
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op_rcvaddr(struct snmp_context *ctx __unused, struct snmp_value *value,
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u_int sub, u_int iidx __unused, enum snmp_op op)
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{
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struct mibrcvaddr *rcv;
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rcv = NULL; /* make compiler happy */
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switch (op) {
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case SNMP_OP_GETNEXT:
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if ((rcv = NEXT_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL)
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return (SNMP_ERR_NOSUCHNAME);
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index_append(&value->var, sub, &rcv->index);
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break;
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case SNMP_OP_GET:
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if ((rcv = FIND_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL)
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return (SNMP_ERR_NOSUCHNAME);
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break;
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case SNMP_OP_SET:
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if ((rcv = FIND_OBJECT_OID(&mibrcvaddr_list, &value->var, sub)) == NULL)
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return (SNMP_ERR_NO_CREATION);
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return (SNMP_ERR_NOT_WRITEABLE);
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case SNMP_OP_ROLLBACK:
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case SNMP_OP_COMMIT:
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abort();
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}
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switch (value->var.subs[sub - 1]) {
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case LEAF_ifRcvAddressStatus:
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value->v.integer = 1;
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break;
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case LEAF_ifRcvAddressType:
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value->v.integer = (rcv->flags & MIBRCVADDR_VOLATILE) ? 2 : 3;
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break;
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}
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return (SNMP_ERR_NOERROR);
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}
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