coexistance.c
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1/*
2 * Copyright (C) 1996-2022 The Squid Software Foundation and contributors
3 *
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
7 */
8
9/*
10 * RFC 1908: Coexistence between SNMPv1 and SNMPv2
11 */
12/**********************************************************************
13 *
14 * Copyright 1997 by Carnegie Mellon University
15 *
16 * All Rights Reserved
17 *
18 * Permission to use, copy, modify, and distribute this software and its
19 * documentation for any purpose and without fee is hereby granted,
20 * provided that the above copyright notice appear in all copies and that
21 * both that copyright notice and this permission notice appear in
22 * supporting documentation, and that the name of CMU not be
23 * used in advertising or publicity pertaining to distribution of the
24 * software without specific, written prior permission.
25 *
26 * CMU DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
27 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
28 * CMU BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
29 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
30 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
31 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
32 * SOFTWARE.
33 *
34 * Author: Ryan Troll <ryan+@andrew.cmu.edu>
35 *
36 **********************************************************************/
37
38#include "squid.h"
39
40#if HAVE_UNISTD_H
41#include <unistd.h>
42#endif
43#if HAVE_STDLIB_H
44#include <stdlib.h>
45#endif
46#if HAVE_SYS_TYPES_H
47#include <sys/types.h>
48#endif
49#if HAVE_CTYPE_H
50#include <ctype.h>
51#endif
52#if HAVE_GNUMALLOC_H
53#include <gnumalloc.h>
54#elif HAVE_MALLOC_H
55#include <malloc.h>
56#endif
57#if HAVE_MEMORY_H
58#include <memory.h>
59#endif
60#if HAVE_STRING_H
61#include <string.h>
62#endif
63#if HAVE_STRINGS_H
64#include <strings.h>
65#endif
66#if HAVE_BSTRING_H
67#include <bstring.h>
68#endif
69#if HAVE_SYS_SOCKET_H
70#include <sys/socket.h>
71#endif
72#if HAVE_NETINET_IN_H
73#include <netinet/in.h>
74#endif
75#if HAVE_ARPA_INET_H
76#include <arpa/inet.h>
77#endif
78#if HAVE_SYS_TIME_H
79#include <sys/time.h>
80#endif
81#if HAVE_NETDB_H
82#include <netdb.h>
83#endif
84
85#include "asn1.h"
86#include "snmp.h"
87#include "snmp_api_error.h"
88#include "snmp_error.h"
89#include "snmp_pdu.h"
90#include "snmp_vars.h"
91
92#include "util.h"
93
94/*
95 * RFC 1908: Coexistence between SNMPv1 and SNMPv2
96 *
97 * These convert:
98 *
99 * V1 PDUs from an ** AGENT ** to V2 PDUs for an ** MANAGER **
100 * V2 PDUs from an ** MANAGER ** to V1 PDUs for an ** AGENT **
101 *
102 * We will never convert V1 information from a manager into V2 PDUs. V1
103 * requests are always honored by V2 agents, and the responses will be
104 * valid V1 responses. (I think. XXXXX)
105 *
106 */
107int
109{
110 /* Per 3.1.1:
111 */
112 switch (PDU->command) {
113
114 case SNMP_PDU_GET:
115 case SNMP_PDU_GETNEXT:
116#if SNMP_PDU_SET
117 case SNMP_PDU_SET:
118#endif
119 return (1);
120 break;
121
122 case SNMP_PDU_GETBULK:
123 PDU->non_repeaters = 0;
124 PDU->max_repetitions = 0;
126 return (1);
127 break;
128
129 default:
130 snmplib_debug(2, "Unable to translate PDU %d to SNMPv1!\n", PDU->command);
132 return (0);
133 }
134}
135
int snmp_coexist_V2toV1(struct snmp_pdu *PDU)
Definition: coexistance.c:108
#define SNMPERR_PDU_TRANSLATION
void snmp_set_api_error(int)
SQUIDCEXTERN void snmplib_debug(int, const char *,...) PRINTF_FORMAT_ARG2
Definition: snmplib_debug.c:21
#define SNMP_PDU_GETBULK
Definition: snmp_pdu.h:95
#define SNMP_PDU_GET
Definition: snmp_pdu.h:92
#define SNMP_PDU_GETNEXT
Definition: snmp_pdu.h:93
int non_repeaters
Definition: snmp_pdu.h:59
int command
Definition: snmp_pdu.h:51
int max_repetitions
Definition: snmp_pdu.h:60

 

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