1 /*
2  * Copyright (c) 2001-2003
3  *	Fraunhofer Institute for Open Communication Systems (FhG Fokus).
4  *	All rights reserved.
5  *
6  * Author: Harti Brandt <harti@freebsd.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $Begemot: bsnmp/snmp_mibII/mibII_ifmib.c,v 1.9 2004/08/06 08:47:00 brandt Exp $
30  *
31  * Interfaces group.
32  */
33 #include "mibII.h"
34 #include "mibII_oid.h"
35 
36 /*
37  * Scalars
38  */
39 int
40 op_ifmib(struct snmp_context *ctx __unused, struct snmp_value *value,
41     u_int sub, u_int idx __unused, enum snmp_op op)
42 {
43 	switch (op) {
44 
45 	  case SNMP_OP_GETNEXT:
46 		abort();
47 
48 	  case SNMP_OP_GET:
49 		break;
50 
51 	  case SNMP_OP_SET:
52 		return (SNMP_ERR_NOT_WRITEABLE);
53 
54 	  case SNMP_OP_ROLLBACK:
55 	  case SNMP_OP_COMMIT:
56 		abort();
57 	}
58 
59 	switch (value->var.subs[sub - 1]) {
60 
61 	  case LEAF_ifTableLastChange:
62 		if (mib_iftable_last_change > start_tick)
63 			value->v.uint32 = mib_iftable_last_change - start_tick;
64 		else
65 			value->v.uint32 = 0;
66 		break;
67 
68 	  case LEAF_ifStackLastChange:
69 		if (mib_ifstack_last_change > start_tick)
70 			value->v.uint32 = mib_ifstack_last_change - start_tick;
71 		else
72 			value->v.uint32 = 0;
73 		break;
74 	}
75 	return (SNMP_ERR_NOERROR);
76 }
77