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_ifstack.c,v 1.7 2004/08/06 08:47:00 brandt Exp $ 30122394Sharti * 31122394Sharti * ifStackTable. Read-only. 32122394Sharti */ 33122394Sharti#include "mibII.h" 34122394Sharti 35122394Shartiint 36122394Shartimib_ifstack_create(const struct mibif *lower, const struct mibif *upper) 37122394Sharti{ 38122394Sharti struct mibifstack *stack; 39122394Sharti 40122394Sharti if ((stack = malloc(sizeof(*stack))) == NULL) 41122394Sharti return (-1); 42122394Sharti 43122394Sharti stack->index.len = 2; 44122394Sharti stack->index.subs[0] = upper ? upper->index : 0; 45122394Sharti stack->index.subs[1] = lower ? lower->index : 0; 46122394Sharti 47122394Sharti INSERT_OBJECT_OID(stack, &mibifstack_list); 48122394Sharti 49122394Sharti mib_ifstack_last_change = get_ticks(); 50122394Sharti 51122394Sharti return (0); 52122394Sharti} 53122394Sharti 54122394Shartivoid 55122394Shartimib_ifstack_delete(const struct mibif *lower, const struct mibif *upper) 56122394Sharti{ 57122394Sharti struct mibifstack *stack; 58122394Sharti 59122394Sharti TAILQ_FOREACH(stack, &mibifstack_list, link) 60122394Sharti if (stack->index.subs[0] == (upper ? upper->index : 0) && 61122394Sharti stack->index.subs[1] == (lower ? lower->index : 0)) { 62122394Sharti TAILQ_REMOVE(&mibifstack_list, stack, link); 63122394Sharti free(stack); 64122394Sharti mib_ifstack_last_change = get_ticks(); 65122394Sharti return; 66122394Sharti } 67122394Sharti} 68122394Sharti 69122394Shartiint 70122394Shartiop_ifstack(struct snmp_context *ctx __unused, struct snmp_value *value, 71122394Sharti u_int sub, u_int iidx __unused, enum snmp_op op) 72122394Sharti{ 73122394Sharti struct mibifstack *stack; 74122394Sharti 75122394Sharti switch (op) { 76122394Sharti 77122394Sharti case SNMP_OP_GETNEXT: 78122394Sharti if ((stack = NEXT_OBJECT_OID(&mibifstack_list, &value->var, sub)) == NULL) 79122394Sharti return (SNMP_ERR_NOSUCHNAME); 80122394Sharti index_append(&value->var, sub, &stack->index); 81122394Sharti break; 82122394Sharti 83122394Sharti case SNMP_OP_GET: 84122394Sharti if ((stack = FIND_OBJECT_OID(&mibifstack_list, &value->var, sub)) == NULL) 85122394Sharti return (SNMP_ERR_NOSUCHNAME); 86122394Sharti break; 87122394Sharti 88122394Sharti case SNMP_OP_SET: 89122394Sharti if ((stack = FIND_OBJECT_OID(&mibifstack_list, &value->var, sub)) == NULL) 90122394Sharti return (SNMP_ERR_NO_CREATION); 91122394Sharti return (SNMP_ERR_NOT_WRITEABLE); 92122394Sharti 93122394Sharti case SNMP_OP_ROLLBACK: 94122394Sharti case SNMP_OP_COMMIT: 95122394Sharti abort(); 96122394Sharti } 97122394Sharti 98122394Sharti switch (value->var.subs[sub - 1]) { 99122394Sharti 100122394Sharti case LEAF_ifStackStatus: 101122394Sharti value->v.integer = 1; 102122394Sharti break; 103122394Sharti } 104122394Sharti return (SNMP_ERR_NOERROR); 105122394Sharti} 106