[457] | 1 | /**
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| 2 | * @file
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| 3 | * Management Information Base II (RFC1213) SNMP objects and functions.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
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| 8 | * All rights reserved.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without modification,
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| 11 | * are permitted provided that the following conditions are met:
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| 12 | *
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| 13 | * 1. Redistributions of source code must retain the above copyright notice,
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| 14 | * this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 16 | * this list of conditions and the following disclaimer in the documentation
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| 17 | * and/or other materials provided with the distribution.
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| 18 | * 3. The name of the author may not be used to endorse or promote products
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| 19 | * derived from this software without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 30 | * OF SUCH DAMAGE.
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| 31 | *
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| 32 | * Author: Dirk Ziegelmeier <dziegel@gmx.de>
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| 33 | * Christiaan Simons <christiaan.simons@axon.tv>
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| 34 | */
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| 35 |
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| 36 | #include "lwip/snmp.h"
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| 37 | #include "lwip/apps/snmp.h"
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| 38 | #include "lwip/apps/snmp_core.h"
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| 39 | #include "lwip/apps/snmp_mib2.h"
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| 40 | #include "lwip/apps/snmp_scalar.h"
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| 41 |
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| 42 | #if LWIP_SNMP && SNMP_LWIP_MIB2
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| 43 |
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| 44 | #define MIB2_AUTH_TRAPS_ENABLED 1
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| 45 | #define MIB2_AUTH_TRAPS_DISABLED 2
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| 46 |
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| 47 | /* --- snmp .1.3.6.1.2.1.11 ----------------------------------------------------- */
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| 48 | static s16_t
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| 49 | snmp_get_value(const struct snmp_scalar_array_node_def *node, void *value)
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| 50 | {
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| 51 | u32_t *uint_ptr = (u32_t *)value;
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| 52 | switch (node->oid) {
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| 53 | case 1: /* snmpInPkts */
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| 54 | *uint_ptr = snmp_stats.inpkts;
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| 55 | break;
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| 56 | case 2: /* snmpOutPkts */
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| 57 | *uint_ptr = snmp_stats.outpkts;
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| 58 | break;
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| 59 | case 3: /* snmpInBadVersions */
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| 60 | *uint_ptr = snmp_stats.inbadversions;
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| 61 | break;
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| 62 | case 4: /* snmpInBadCommunityNames */
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| 63 | *uint_ptr = snmp_stats.inbadcommunitynames;
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| 64 | break;
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| 65 | case 5: /* snmpInBadCommunityUses */
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| 66 | *uint_ptr = snmp_stats.inbadcommunityuses;
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| 67 | break;
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| 68 | case 6: /* snmpInASNParseErrs */
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| 69 | *uint_ptr = snmp_stats.inasnparseerrs;
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| 70 | break;
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| 71 | case 8: /* snmpInTooBigs */
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| 72 | *uint_ptr = snmp_stats.intoobigs;
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| 73 | break;
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| 74 | case 9: /* snmpInNoSuchNames */
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| 75 | *uint_ptr = snmp_stats.innosuchnames;
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| 76 | break;
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| 77 | case 10: /* snmpInBadValues */
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| 78 | *uint_ptr = snmp_stats.inbadvalues;
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| 79 | break;
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| 80 | case 11: /* snmpInReadOnlys */
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| 81 | *uint_ptr = snmp_stats.inreadonlys;
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| 82 | break;
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| 83 | case 12: /* snmpInGenErrs */
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| 84 | *uint_ptr = snmp_stats.ingenerrs;
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| 85 | break;
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| 86 | case 13: /* snmpInTotalReqVars */
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| 87 | *uint_ptr = snmp_stats.intotalreqvars;
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| 88 | break;
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| 89 | case 14: /* snmpInTotalSetVars */
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| 90 | *uint_ptr = snmp_stats.intotalsetvars;
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| 91 | break;
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| 92 | case 15: /* snmpInGetRequests */
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| 93 | *uint_ptr = snmp_stats.ingetrequests;
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| 94 | break;
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| 95 | case 16: /* snmpInGetNexts */
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| 96 | *uint_ptr = snmp_stats.ingetnexts;
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| 97 | break;
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| 98 | case 17: /* snmpInSetRequests */
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| 99 | *uint_ptr = snmp_stats.insetrequests;
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| 100 | break;
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| 101 | case 18: /* snmpInGetResponses */
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| 102 | *uint_ptr = snmp_stats.ingetresponses;
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| 103 | break;
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| 104 | case 19: /* snmpInTraps */
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| 105 | *uint_ptr = snmp_stats.intraps;
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| 106 | break;
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| 107 | case 20: /* snmpOutTooBigs */
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| 108 | *uint_ptr = snmp_stats.outtoobigs;
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| 109 | break;
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| 110 | case 21: /* snmpOutNoSuchNames */
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| 111 | *uint_ptr = snmp_stats.outnosuchnames;
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| 112 | break;
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| 113 | case 22: /* snmpOutBadValues */
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| 114 | *uint_ptr = snmp_stats.outbadvalues;
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| 115 | break;
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| 116 | case 24: /* snmpOutGenErrs */
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| 117 | *uint_ptr = snmp_stats.outgenerrs;
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| 118 | break;
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| 119 | case 25: /* snmpOutGetRequests */
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| 120 | *uint_ptr = snmp_stats.outgetrequests;
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| 121 | break;
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| 122 | case 26: /* snmpOutGetNexts */
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| 123 | *uint_ptr = snmp_stats.outgetnexts;
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| 124 | break;
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| 125 | case 27: /* snmpOutSetRequests */
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| 126 | *uint_ptr = snmp_stats.outsetrequests;
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| 127 | break;
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| 128 | case 28: /* snmpOutGetResponses */
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| 129 | *uint_ptr = snmp_stats.outgetresponses;
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| 130 | break;
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| 131 | case 29: /* snmpOutTraps */
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| 132 | *uint_ptr = snmp_stats.outtraps;
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| 133 | break;
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| 134 | case 30: /* snmpEnableAuthenTraps */
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| 135 | if (snmp_get_auth_traps_enabled() == SNMP_AUTH_TRAPS_DISABLED) {
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| 136 | *uint_ptr = MIB2_AUTH_TRAPS_DISABLED;
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| 137 | } else {
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| 138 | *uint_ptr = MIB2_AUTH_TRAPS_ENABLED;
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| 139 | }
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| 140 | break;
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| 141 | case 31: /* snmpSilentDrops */
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| 142 | *uint_ptr = 0; /* not supported */
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| 143 | break;
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| 144 | case 32: /* snmpProxyDrops */
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| 145 | *uint_ptr = 0; /* not supported */
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| 146 | break;
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| 147 | default:
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| 148 | LWIP_DEBUGF(SNMP_MIB_DEBUG, ("snmp_get_value(): unknown id: %"S32_F"\n", node->oid));
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| 149 | return 0;
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| 150 | }
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| 151 |
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| 152 | return sizeof(*uint_ptr);
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| 153 | }
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| 154 |
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| 155 | static snmp_err_t
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| 156 | snmp_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
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| 157 | {
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| 158 | snmp_err_t ret = SNMP_ERR_WRONGVALUE;
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| 159 | LWIP_UNUSED_ARG(len);
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| 160 |
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| 161 | if (node->oid == 30) {
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| 162 | /* snmpEnableAuthenTraps */
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| 163 | s32_t *sint_ptr = (s32_t *)value;
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| 164 |
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| 165 | /* we should have writable non-volatile mem here */
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| 166 | if ((*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) || (*sint_ptr == MIB2_AUTH_TRAPS_ENABLED)) {
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| 167 | ret = SNMP_ERR_NOERROR;
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| 168 | }
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| 169 | }
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| 170 | return ret;
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| 171 | }
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| 172 |
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| 173 | static snmp_err_t
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| 174 | snmp_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value)
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| 175 | {
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| 176 | LWIP_UNUSED_ARG(len);
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| 177 |
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| 178 | if (node->oid == 30) {
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| 179 | /* snmpEnableAuthenTraps */
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| 180 | s32_t *sint_ptr = (s32_t *)value;
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| 181 | if (*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) {
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| 182 | snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_DISABLED);
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| 183 | } else {
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| 184 | snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_ENABLED);
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| 185 | }
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| 186 | }
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| 187 |
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| 188 | return SNMP_ERR_NOERROR;
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| 189 | }
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| 190 |
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| 191 | /* the following nodes access variables in SNMP stack (snmp_stats) from SNMP worker thread -> OK, no sync needed */
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| 192 | static const struct snmp_scalar_array_node_def snmp_nodes[] = {
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| 193 | { 1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInPkts */
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| 194 | { 2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutPkts */
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| 195 | { 3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadVersions */
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| 196 | { 4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityNames */
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| 197 | { 5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityUses */
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| 198 | { 6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInASNParseErrs */
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| 199 | { 8, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTooBigs */
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| 200 | { 9, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInNoSuchNames */
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| 201 | {10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadValues */
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| 202 | {11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInReadOnlys */
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| 203 | {12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGenErrs */
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| 204 | {13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalReqVars */
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| 205 | {14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalSetVars */
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| 206 | {15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetRequests */
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| 207 | {16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetNexts */
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| 208 | {17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInSetRequests */
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| 209 | {18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetResponses */
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| 210 | {19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTraps */
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| 211 | {20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTooBigs */
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| 212 | {21, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutNoSuchNames */
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| 213 | {22, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutBadValues */
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| 214 | {24, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGenErrs */
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| 215 | {25, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetRequests */
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| 216 | {26, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetNexts */
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| 217 | {27, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutSetRequests */
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| 218 | {28, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetResponses */
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| 219 | {29, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTraps */
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| 220 | {30, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_WRITE}, /* snmpEnableAuthenTraps */
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| 221 | {31, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpSilentDrops */
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| 222 | {32, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY} /* snmpProxyDrops */
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| 223 | };
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| 224 |
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| 225 | const struct snmp_scalar_array_node snmp_mib2_snmp_root = SNMP_SCALAR_CREATE_ARRAY_NODE(11, snmp_nodes, snmp_get_value, snmp_set_test, snmp_set_value);
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| 226 |
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| 227 | #endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */
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