[457] | 1 | /**
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| 2 | * @file
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| 3 | * Management Information Base II (RFC1213) IP 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_table.h"
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| 41 | #include "lwip/apps/snmp_scalar.h"
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| 42 | #include "lwip/stats.h"
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| 43 | #include "lwip/netif.h"
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| 44 | #include "lwip/ip.h"
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| 45 | #include "lwip/etharp.h"
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| 46 |
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| 47 | #if LWIP_SNMP && SNMP_LWIP_MIB2
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| 48 |
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| 49 | #if SNMP_USE_NETCONN
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| 50 | #define SYNC_NODE_NAME(node_name) node_name ## _synced
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| 51 | #define CREATE_LWIP_SYNC_NODE(oid, node_name) \
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| 52 | static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks);
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| 53 | #else
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| 54 | #define SYNC_NODE_NAME(node_name) node_name
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| 55 | #define CREATE_LWIP_SYNC_NODE(oid, node_name)
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| 56 | #endif
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| 57 |
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| 58 | #if LWIP_IPV4
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| 59 | /* --- ip .1.3.6.1.2.1.4 ----------------------------------------------------- */
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| 60 |
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| 61 | static s16_t
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| 62 | ip_get_value(struct snmp_node_instance *instance, void *value)
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| 63 | {
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| 64 | s32_t *sint_ptr = (s32_t *)value;
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| 65 | u32_t *uint_ptr = (u32_t *)value;
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| 66 |
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| 67 | switch (instance->node->oid) {
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| 68 | case 1: /* ipForwarding */
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| 69 | #if IP_FORWARD
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| 70 | /* forwarding */
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| 71 | *sint_ptr = 1;
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| 72 | #else
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| 73 | /* not-forwarding */
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| 74 | *sint_ptr = 2;
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| 75 | #endif
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| 76 | return sizeof(*sint_ptr);
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| 77 | case 2: /* ipDefaultTTL */
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| 78 | *sint_ptr = IP_DEFAULT_TTL;
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| 79 | return sizeof(*sint_ptr);
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| 80 | case 3: /* ipInReceives */
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| 81 | *uint_ptr = STATS_GET(mib2.ipinreceives);
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| 82 | return sizeof(*uint_ptr);
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| 83 | case 4: /* ipInHdrErrors */
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| 84 | *uint_ptr = STATS_GET(mib2.ipinhdrerrors);
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| 85 | return sizeof(*uint_ptr);
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| 86 | case 5: /* ipInAddrErrors */
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| 87 | *uint_ptr = STATS_GET(mib2.ipinaddrerrors);
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| 88 | return sizeof(*uint_ptr);
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| 89 | case 6: /* ipForwDatagrams */
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| 90 | *uint_ptr = STATS_GET(mib2.ipforwdatagrams);
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| 91 | return sizeof(*uint_ptr);
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| 92 | case 7: /* ipInUnknownProtos */
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| 93 | *uint_ptr = STATS_GET(mib2.ipinunknownprotos);
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| 94 | return sizeof(*uint_ptr);
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| 95 | case 8: /* ipInDiscards */
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| 96 | *uint_ptr = STATS_GET(mib2.ipindiscards);
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| 97 | return sizeof(*uint_ptr);
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| 98 | case 9: /* ipInDelivers */
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| 99 | *uint_ptr = STATS_GET(mib2.ipindelivers);
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| 100 | return sizeof(*uint_ptr);
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| 101 | case 10: /* ipOutRequests */
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| 102 | *uint_ptr = STATS_GET(mib2.ipoutrequests);
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| 103 | return sizeof(*uint_ptr);
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| 104 | case 11: /* ipOutDiscards */
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| 105 | *uint_ptr = STATS_GET(mib2.ipoutdiscards);
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| 106 | return sizeof(*uint_ptr);
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| 107 | case 12: /* ipOutNoRoutes */
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| 108 | *uint_ptr = STATS_GET(mib2.ipoutnoroutes);
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| 109 | return sizeof(*uint_ptr);
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| 110 | case 13: /* ipReasmTimeout */
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| 111 | #if IP_REASSEMBLY
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| 112 | *sint_ptr = IP_REASS_MAXAGE;
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| 113 | #else
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| 114 | *sint_ptr = 0;
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| 115 | #endif
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| 116 | return sizeof(*sint_ptr);
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| 117 | case 14: /* ipReasmReqds */
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| 118 | *uint_ptr = STATS_GET(mib2.ipreasmreqds);
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| 119 | return sizeof(*uint_ptr);
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| 120 | case 15: /* ipReasmOKs */
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| 121 | *uint_ptr = STATS_GET(mib2.ipreasmoks);
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| 122 | return sizeof(*uint_ptr);
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| 123 | case 16: /* ipReasmFails */
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| 124 | *uint_ptr = STATS_GET(mib2.ipreasmfails);
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| 125 | return sizeof(*uint_ptr);
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| 126 | case 17: /* ipFragOKs */
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| 127 | *uint_ptr = STATS_GET(mib2.ipfragoks);
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| 128 | return sizeof(*uint_ptr);
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| 129 | case 18: /* ipFragFails */
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| 130 | *uint_ptr = STATS_GET(mib2.ipfragfails);
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| 131 | return sizeof(*uint_ptr);
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| 132 | case 19: /* ipFragCreates */
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| 133 | *uint_ptr = STATS_GET(mib2.ipfragcreates);
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| 134 | return sizeof(*uint_ptr);
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| 135 | case 23: /* ipRoutingDiscards: not supported -> always 0 */
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| 136 | *uint_ptr = 0;
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| 137 | return sizeof(*uint_ptr);
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| 138 | default:
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| 139 | LWIP_DEBUGF(SNMP_MIB_DEBUG, ("ip_get_value(): unknown id: %"S32_F"\n", instance->node->oid));
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| 140 | break;
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| 141 | }
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| 142 |
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| 143 | return 0;
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| 144 | }
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| 145 |
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| 146 | /**
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| 147 | * Test ip object value before setting.
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| 148 | *
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| 149 | * @param instance node instance
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| 150 | * @param len return value space (in bytes)
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| 151 | * @param value points to (varbind) space to copy value from.
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| 152 | *
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| 153 | * @note we allow set if the value matches the hardwired value,
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| 154 | * otherwise return badvalue.
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| 155 | */
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| 156 | static snmp_err_t
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| 157 | ip_set_test(struct snmp_node_instance *instance, u16_t len, void *value)
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| 158 | {
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| 159 | snmp_err_t ret = SNMP_ERR_WRONGVALUE;
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| 160 | s32_t *sint_ptr = (s32_t *)value;
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| 161 |
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| 162 | LWIP_UNUSED_ARG(len);
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| 163 | switch (instance->node->oid) {
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| 164 | case 1: /* ipForwarding */
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| 165 | #if IP_FORWARD
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| 166 | /* forwarding */
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| 167 | if (*sint_ptr == 1)
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| 168 | #else
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| 169 | /* not-forwarding */
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| 170 | if (*sint_ptr == 2)
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| 171 | #endif
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| 172 | {
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| 173 | ret = SNMP_ERR_NOERROR;
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| 174 | }
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| 175 | break;
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| 176 | case 2: /* ipDefaultTTL */
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| 177 | if (*sint_ptr == IP_DEFAULT_TTL) {
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| 178 | ret = SNMP_ERR_NOERROR;
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| 179 | }
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| 180 | break;
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| 181 | default:
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| 182 | LWIP_DEBUGF(SNMP_MIB_DEBUG, ("ip_set_test(): unknown id: %"S32_F"\n", instance->node->oid));
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| 183 | break;
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| 184 | }
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| 185 |
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| 186 | return ret;
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| 187 | }
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| 188 |
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| 189 | static snmp_err_t
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| 190 | ip_set_value(struct snmp_node_instance *instance, u16_t len, void *value)
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| 191 | {
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| 192 | LWIP_UNUSED_ARG(instance);
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| 193 | LWIP_UNUSED_ARG(len);
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| 194 | LWIP_UNUSED_ARG(value);
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| 195 | /* nothing to do here because in set_test we only accept values being the same as our own stored value -> no need to store anything */
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| 196 | return SNMP_ERR_NOERROR;
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| 197 | }
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| 198 |
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| 199 | /* --- ipAddrTable --- */
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| 200 |
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| 201 | /* list of allowed value ranges for incoming OID */
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| 202 | static const struct snmp_oid_range ip_AddrTable_oid_ranges[] = {
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| 203 | { 0, 0xff }, /* IP A */
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| 204 | { 0, 0xff }, /* IP B */
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| 205 | { 0, 0xff }, /* IP C */
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| 206 | { 0, 0xff } /* IP D */
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| 207 | };
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| 208 |
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| 209 | static snmp_err_t
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| 210 | ip_AddrTable_get_cell_value_core(struct netif *netif, const u32_t *column, union snmp_variant_value *value, u32_t *value_len)
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| 211 | {
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| 212 | LWIP_UNUSED_ARG(value_len);
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| 213 |
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| 214 | switch (*column) {
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| 215 | case 1: /* ipAdEntAddr */
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| 216 | value->u32 = netif_ip4_addr(netif)->addr;
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| 217 | break;
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| 218 | case 2: /* ipAdEntIfIndex */
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| 219 | value->u32 = netif_to_num(netif);
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| 220 | break;
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| 221 | case 3: /* ipAdEntNetMask */
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| 222 | value->u32 = netif_ip4_netmask(netif)->addr;
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| 223 | break;
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| 224 | case 4: /* ipAdEntBcastAddr */
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| 225 | /* lwIP oddity, there's no broadcast
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| 226 | address in the netif we can rely on */
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| 227 | value->u32 = IPADDR_BROADCAST & 1;
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| 228 | break;
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| 229 | case 5: /* ipAdEntReasmMaxSize */
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| 230 | #if IP_REASSEMBLY
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| 231 | /* @todo The theoretical maximum is IP_REASS_MAX_PBUFS * size of the pbufs,
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| 232 | * but only if receiving one fragmented packet at a time.
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| 233 | * The current solution is to calculate for 2 simultaneous packets...
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| 234 | */
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| 235 | value->u32 = (IP_HLEN + ((IP_REASS_MAX_PBUFS / 2) *
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| 236 | (PBUF_POOL_BUFSIZE - PBUF_LINK_ENCAPSULATION_HLEN - PBUF_LINK_HLEN - IP_HLEN)));
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| 237 | #else
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| 238 | /** @todo returning MTU would be a bad thing and
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| 239 | returning a wild guess like '576' isn't good either */
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| 240 | value->u32 = 0;
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| 241 | #endif
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| 242 | break;
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| 243 | default:
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| 244 | return SNMP_ERR_NOSUCHINSTANCE;
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| 245 | }
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| 246 |
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| 247 | return SNMP_ERR_NOERROR;
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| 248 | }
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| 249 |
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| 250 | static snmp_err_t
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| 251 | ip_AddrTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len)
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| 252 | {
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| 253 | ip4_addr_t ip;
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| 254 | struct netif *netif;
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| 255 |
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| 256 | /* check if incoming OID length and if values are in plausible range */
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| 257 | if (!snmp_oid_in_range(row_oid, row_oid_len, ip_AddrTable_oid_ranges, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges))) {
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| 258 | return SNMP_ERR_NOSUCHINSTANCE;
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| 259 | }
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| 260 |
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| 261 | /* get IP from incoming OID */
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| 262 | snmp_oid_to_ip4(&row_oid[0], &ip); /* we know it succeeds because of oid_in_range check above */
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| 263 |
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| 264 | /* find netif with requested ip */
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| 265 | NETIF_FOREACH(netif) {
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| 266 | if (ip4_addr_cmp(&ip, netif_ip4_addr(netif))) {
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| 267 | /* fill in object properties */
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| 268 | return ip_AddrTable_get_cell_value_core(netif, column, value, value_len);
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| 269 | }
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| 270 | }
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| 271 |
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| 272 | /* not found */
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| 273 | return SNMP_ERR_NOSUCHINSTANCE;
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| 274 | }
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| 275 |
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| 276 | static snmp_err_t
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| 277 | ip_AddrTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len)
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| 278 | {
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| 279 | struct netif *netif;
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| 280 | struct snmp_next_oid_state state;
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| 281 | u32_t result_temp[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)];
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| 282 |
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| 283 | /* init struct to search next oid */
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| 284 | snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges));
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| 285 |
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| 286 | /* iterate over all possible OIDs to find the next one */
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| 287 | NETIF_FOREACH(netif) {
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| 288 | u32_t test_oid[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)];
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| 289 | snmp_ip4_to_oid(netif_ip4_addr(netif), &test_oid[0]);
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| 290 |
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| 291 | /* check generated OID: is it a candidate for the next one? */
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| 292 | snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges), netif);
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| 293 | }
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| 294 |
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| 295 | /* did we find a next one? */
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| 296 | if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) {
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| 297 | snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len);
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| 298 | /* fill in object properties */
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| 299 | return ip_AddrTable_get_cell_value_core((struct netif *)state.reference, column, value, value_len);
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| 300 | }
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| 301 |
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| 302 | /* not found */
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| 303 | return SNMP_ERR_NOSUCHINSTANCE;
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| 304 | }
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| 305 |
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| 306 | /* --- ipRouteTable --- */
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| 307 |
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| 308 | /* list of allowed value ranges for incoming OID */
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| 309 | static const struct snmp_oid_range ip_RouteTable_oid_ranges[] = {
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| 310 | { 0, 0xff }, /* IP A */
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| 311 | { 0, 0xff }, /* IP B */
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| 312 | { 0, 0xff }, /* IP C */
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| 313 | { 0, 0xff }, /* IP D */
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| 314 | };
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| 315 |
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| 316 | static snmp_err_t
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| 317 | ip_RouteTable_get_cell_value_core(struct netif *netif, u8_t default_route, const u32_t *column, union snmp_variant_value *value, u32_t *value_len)
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| 318 | {
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| 319 | switch (*column) {
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| 320 | case 1: /* ipRouteDest */
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| 321 | if (default_route) {
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| 322 | /* default rte has 0.0.0.0 dest */
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| 323 | value->u32 = IP4_ADDR_ANY4->addr;
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| 324 | } else {
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| 325 | /* netifs have netaddress dest */
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| 326 | ip4_addr_t tmp;
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| 327 | ip4_addr_get_network(&tmp, netif_ip4_addr(netif), netif_ip4_netmask(netif));
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| 328 | value->u32 = tmp.addr;
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| 329 | }
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| 330 | break;
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| 331 | case 2: /* ipRouteIfIndex */
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| 332 | value->u32 = netif_to_num(netif);
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| 333 | break;
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| 334 | case 3: /* ipRouteMetric1 */
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| 335 | if (default_route) {
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| 336 | value->s32 = 1; /* default */
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| 337 | } else {
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| 338 | value->s32 = 0; /* normal */
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| 339 | }
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| 340 | break;
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| 341 | case 4: /* ipRouteMetric2 */
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| 342 | case 5: /* ipRouteMetric3 */
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| 343 | case 6: /* ipRouteMetric4 */
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| 344 | value->s32 = -1; /* none */
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| 345 | break;
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| 346 | case 7: /* ipRouteNextHop */
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| 347 | if (default_route) {
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| 348 | /* default rte: gateway */
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| 349 | value->u32 = netif_ip4_gw(netif)->addr;
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| 350 | } else {
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| 351 | /* other rtes: netif ip_addr */
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| 352 | value->u32 = netif_ip4_addr(netif)->addr;
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| 353 | }
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| 354 | break;
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| 355 | case 8: /* ipRouteType */
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| 356 | if (default_route) {
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| 357 | /* default rte is indirect */
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| 358 | value->u32 = 4; /* indirect */
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| 359 | } else {
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| 360 | /* other rtes are direct */
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| 361 | value->u32 = 3; /* direct */
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| 362 | }
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| 363 | break;
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| 364 | case 9: /* ipRouteProto */
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| 365 | /* locally defined routes */
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| 366 | value->u32 = 2; /* local */
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| 367 | break;
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| 368 | case 10: /* ipRouteAge */
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| 369 | /* @todo (sysuptime - timestamp last change) / 100 */
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| 370 | value->u32 = 0;
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| 371 | break;
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| 372 | case 11: /* ipRouteMask */
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| 373 | if (default_route) {
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| 374 | /* default rte use 0.0.0.0 mask */
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| 375 | value->u32 = IP4_ADDR_ANY4->addr;
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| 376 | } else {
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| 377 | /* other rtes use netmask */
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| 378 | value->u32 = netif_ip4_netmask(netif)->addr;
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| 379 | }
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| 380 | break;
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| 381 | case 12: /* ipRouteMetric5 */
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| 382 | value->s32 = -1; /* none */
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| 383 | break;
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| 384 | case 13: /* ipRouteInfo */
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| 385 | value->const_ptr = snmp_zero_dot_zero.id;
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| 386 | *value_len = snmp_zero_dot_zero.len * sizeof(u32_t);
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| 387 | break;
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| 388 | default:
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| 389 | return SNMP_ERR_NOSUCHINSTANCE;
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| 390 | }
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| 391 |
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| 392 | return SNMP_ERR_NOERROR;
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| 393 | }
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| 394 |
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| 395 | static snmp_err_t
|
---|
| 396 | ip_RouteTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len)
|
---|
| 397 | {
|
---|
| 398 | ip4_addr_t test_ip;
|
---|
| 399 | struct netif *netif;
|
---|
| 400 |
|
---|
| 401 | /* check if incoming OID length and if values are in plausible range */
|
---|
| 402 | if (!snmp_oid_in_range(row_oid, row_oid_len, ip_RouteTable_oid_ranges, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges))) {
|
---|
| 403 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 404 | }
|
---|
| 405 |
|
---|
| 406 | /* get IP and port from incoming OID */
|
---|
| 407 | snmp_oid_to_ip4(&row_oid[0], &test_ip); /* we know it succeeds because of oid_in_range check above */
|
---|
| 408 |
|
---|
| 409 | /* default route is on default netif */
|
---|
| 410 | if (ip4_addr_isany_val(test_ip) && (netif_default != NULL)) {
|
---|
| 411 | /* fill in object properties */
|
---|
| 412 | return ip_RouteTable_get_cell_value_core(netif_default, 1, column, value, value_len);
|
---|
| 413 | }
|
---|
| 414 |
|
---|
| 415 | /* find netif with requested route */
|
---|
| 416 | NETIF_FOREACH(netif) {
|
---|
| 417 | ip4_addr_t dst;
|
---|
| 418 | ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif));
|
---|
| 419 |
|
---|
| 420 | if (ip4_addr_cmp(&dst, &test_ip)) {
|
---|
| 421 | /* fill in object properties */
|
---|
| 422 | return ip_RouteTable_get_cell_value_core(netif, 0, column, value, value_len);
|
---|
| 423 | }
|
---|
| 424 | }
|
---|
| 425 |
|
---|
| 426 | /* not found */
|
---|
| 427 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 428 | }
|
---|
| 429 |
|
---|
| 430 | static snmp_err_t
|
---|
| 431 | ip_RouteTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len)
|
---|
| 432 | {
|
---|
| 433 | struct netif *netif;
|
---|
| 434 | struct snmp_next_oid_state state;
|
---|
| 435 | u32_t result_temp[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)];
|
---|
| 436 | u32_t test_oid[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)];
|
---|
| 437 |
|
---|
| 438 | /* init struct to search next oid */
|
---|
| 439 | snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges));
|
---|
| 440 |
|
---|
| 441 | /* check default route */
|
---|
| 442 | if (netif_default != NULL) {
|
---|
| 443 | snmp_ip4_to_oid(IP4_ADDR_ANY4, &test_oid[0]);
|
---|
| 444 | snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif_default);
|
---|
| 445 | }
|
---|
| 446 |
|
---|
| 447 | /* iterate over all possible OIDs to find the next one */
|
---|
| 448 | NETIF_FOREACH(netif) {
|
---|
| 449 | ip4_addr_t dst;
|
---|
| 450 | ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif));
|
---|
| 451 |
|
---|
| 452 | /* check generated OID: is it a candidate for the next one? */
|
---|
| 453 | if (!ip4_addr_isany_val(dst)) {
|
---|
| 454 | snmp_ip4_to_oid(&dst, &test_oid[0]);
|
---|
| 455 | snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif);
|
---|
| 456 | }
|
---|
| 457 | }
|
---|
| 458 |
|
---|
| 459 | /* did we find a next one? */
|
---|
| 460 | if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) {
|
---|
| 461 | ip4_addr_t dst;
|
---|
| 462 | snmp_oid_to_ip4(&result_temp[0], &dst);
|
---|
| 463 | snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len);
|
---|
| 464 | /* fill in object properties */
|
---|
| 465 | return ip_RouteTable_get_cell_value_core((struct netif *)state.reference, ip4_addr_isany_val(dst), column, value, value_len);
|
---|
| 466 | } else {
|
---|
| 467 | /* not found */
|
---|
| 468 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 469 | }
|
---|
| 470 | }
|
---|
| 471 |
|
---|
| 472 | #if LWIP_ARP && LWIP_IPV4
|
---|
| 473 | /* --- ipNetToMediaTable --- */
|
---|
| 474 |
|
---|
| 475 | /* list of allowed value ranges for incoming OID */
|
---|
| 476 | static const struct snmp_oid_range ip_NetToMediaTable_oid_ranges[] = {
|
---|
| 477 | { 1, 0xff }, /* IfIndex */
|
---|
| 478 | { 0, 0xff }, /* IP A */
|
---|
| 479 | { 0, 0xff }, /* IP B */
|
---|
| 480 | { 0, 0xff }, /* IP C */
|
---|
| 481 | { 0, 0xff } /* IP D */
|
---|
| 482 | };
|
---|
| 483 |
|
---|
| 484 | static snmp_err_t
|
---|
| 485 | ip_NetToMediaTable_get_cell_value_core(size_t arp_table_index, const u32_t *column, union snmp_variant_value *value, u32_t *value_len)
|
---|
| 486 | {
|
---|
| 487 | ip4_addr_t *ip;
|
---|
| 488 | struct netif *netif;
|
---|
| 489 | struct eth_addr *ethaddr;
|
---|
| 490 |
|
---|
| 491 | etharp_get_entry(arp_table_index, &ip, &netif, ðaddr);
|
---|
| 492 |
|
---|
| 493 | /* value */
|
---|
| 494 | switch (*column) {
|
---|
| 495 | case 1: /* atIfIndex / ipNetToMediaIfIndex */
|
---|
| 496 | value->u32 = netif_to_num(netif);
|
---|
| 497 | break;
|
---|
| 498 | case 2: /* atPhysAddress / ipNetToMediaPhysAddress */
|
---|
| 499 | value->ptr = ethaddr;
|
---|
| 500 | *value_len = sizeof(*ethaddr);
|
---|
| 501 | break;
|
---|
| 502 | case 3: /* atNetAddress / ipNetToMediaNetAddress */
|
---|
| 503 | value->u32 = ip->addr;
|
---|
| 504 | break;
|
---|
| 505 | case 4: /* ipNetToMediaType */
|
---|
| 506 | value->u32 = 3; /* dynamic*/
|
---|
| 507 | break;
|
---|
| 508 | default:
|
---|
| 509 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | return SNMP_ERR_NOERROR;
|
---|
| 513 | }
|
---|
| 514 |
|
---|
| 515 | static snmp_err_t
|
---|
| 516 | ip_NetToMediaTable_get_cell_value(const u32_t *column, const u32_t *row_oid, u8_t row_oid_len, union snmp_variant_value *value, u32_t *value_len)
|
---|
| 517 | {
|
---|
| 518 | ip4_addr_t ip_in;
|
---|
| 519 | u8_t netif_index;
|
---|
| 520 | size_t i;
|
---|
| 521 |
|
---|
| 522 | /* check if incoming OID length and if values are in plausible range */
|
---|
| 523 | if (!snmp_oid_in_range(row_oid, row_oid_len, ip_NetToMediaTable_oid_ranges, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges))) {
|
---|
| 524 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 525 | }
|
---|
| 526 |
|
---|
| 527 | /* get IP from incoming OID */
|
---|
| 528 | netif_index = (u8_t)row_oid[0];
|
---|
| 529 | snmp_oid_to_ip4(&row_oid[1], &ip_in); /* we know it succeeds because of oid_in_range check above */
|
---|
| 530 |
|
---|
| 531 | /* find requested entry */
|
---|
| 532 | for (i = 0; i < ARP_TABLE_SIZE; i++) {
|
---|
| 533 | ip4_addr_t *ip;
|
---|
| 534 | struct netif *netif;
|
---|
| 535 | struct eth_addr *ethaddr;
|
---|
| 536 |
|
---|
| 537 | if (etharp_get_entry(i, &ip, &netif, ðaddr)) {
|
---|
| 538 | if ((netif_index == netif_to_num(netif)) && ip4_addr_cmp(&ip_in, ip)) {
|
---|
| 539 | /* fill in object properties */
|
---|
| 540 | return ip_NetToMediaTable_get_cell_value_core(i, column, value, value_len);
|
---|
| 541 | }
|
---|
| 542 | }
|
---|
| 543 | }
|
---|
| 544 |
|
---|
| 545 | /* not found */
|
---|
| 546 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | static snmp_err_t
|
---|
| 550 | ip_NetToMediaTable_get_next_cell_instance_and_value(const u32_t *column, struct snmp_obj_id *row_oid, union snmp_variant_value *value, u32_t *value_len)
|
---|
| 551 | {
|
---|
| 552 | size_t i;
|
---|
| 553 | struct snmp_next_oid_state state;
|
---|
| 554 | u32_t result_temp[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)];
|
---|
| 555 |
|
---|
| 556 | /* init struct to search next oid */
|
---|
| 557 | snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges));
|
---|
| 558 |
|
---|
| 559 | /* iterate over all possible OIDs to find the next one */
|
---|
| 560 | for (i = 0; i < ARP_TABLE_SIZE; i++) {
|
---|
| 561 | ip4_addr_t *ip;
|
---|
| 562 | struct netif *netif;
|
---|
| 563 | struct eth_addr *ethaddr;
|
---|
| 564 |
|
---|
| 565 | if (etharp_get_entry(i, &ip, &netif, ðaddr)) {
|
---|
| 566 | u32_t test_oid[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)];
|
---|
| 567 |
|
---|
| 568 | test_oid[0] = netif_to_num(netif);
|
---|
| 569 | snmp_ip4_to_oid(ip, &test_oid[1]);
|
---|
| 570 |
|
---|
| 571 | /* check generated OID: is it a candidate for the next one? */
|
---|
| 572 | snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges), LWIP_PTR_NUMERIC_CAST(void *, i));
|
---|
| 573 | }
|
---|
| 574 | }
|
---|
| 575 |
|
---|
| 576 | /* did we find a next one? */
|
---|
| 577 | if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) {
|
---|
| 578 | snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len);
|
---|
| 579 | /* fill in object properties */
|
---|
| 580 | return ip_NetToMediaTable_get_cell_value_core(LWIP_PTR_NUMERIC_CAST(size_t, state.reference), column, value, value_len);
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | /* not found */
|
---|
| 584 | return SNMP_ERR_NOSUCHINSTANCE;
|
---|
| 585 | }
|
---|
| 586 |
|
---|
| 587 | #endif /* LWIP_ARP && LWIP_IPV4 */
|
---|
| 588 |
|
---|
| 589 | static const struct snmp_scalar_node ip_Forwarding = SNMP_SCALAR_CREATE_NODE(1, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value);
|
---|
| 590 | static const struct snmp_scalar_node ip_DefaultTTL = SNMP_SCALAR_CREATE_NODE(2, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value);
|
---|
| 591 | static const struct snmp_scalar_node ip_InReceives = SNMP_SCALAR_CREATE_NODE_READONLY(3, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 592 | static const struct snmp_scalar_node ip_InHdrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(4, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 593 | static const struct snmp_scalar_node ip_InAddrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(5, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 594 | static const struct snmp_scalar_node ip_ForwDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(6, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 595 | static const struct snmp_scalar_node ip_InUnknownProtos = SNMP_SCALAR_CREATE_NODE_READONLY(7, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 596 | static const struct snmp_scalar_node ip_InDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(8, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 597 | static const struct snmp_scalar_node ip_InDelivers = SNMP_SCALAR_CREATE_NODE_READONLY(9, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 598 | static const struct snmp_scalar_node ip_OutRequests = SNMP_SCALAR_CREATE_NODE_READONLY(10, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 599 | static const struct snmp_scalar_node ip_OutDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(11, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 600 | static const struct snmp_scalar_node ip_OutNoRoutes = SNMP_SCALAR_CREATE_NODE_READONLY(12, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 601 | static const struct snmp_scalar_node ip_ReasmTimeout = SNMP_SCALAR_CREATE_NODE_READONLY(13, SNMP_ASN1_TYPE_INTEGER, ip_get_value);
|
---|
| 602 | static const struct snmp_scalar_node ip_ReasmReqds = SNMP_SCALAR_CREATE_NODE_READONLY(14, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 603 | static const struct snmp_scalar_node ip_ReasmOKs = SNMP_SCALAR_CREATE_NODE_READONLY(15, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 604 | static const struct snmp_scalar_node ip_ReasmFails = SNMP_SCALAR_CREATE_NODE_READONLY(16, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 605 | static const struct snmp_scalar_node ip_FragOKs = SNMP_SCALAR_CREATE_NODE_READONLY(17, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 606 | static const struct snmp_scalar_node ip_FragFails = SNMP_SCALAR_CREATE_NODE_READONLY(18, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 607 | static const struct snmp_scalar_node ip_FragCreates = SNMP_SCALAR_CREATE_NODE_READONLY(19, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 608 | static const struct snmp_scalar_node ip_RoutingDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(23, SNMP_ASN1_TYPE_COUNTER, ip_get_value);
|
---|
| 609 |
|
---|
| 610 | static const struct snmp_table_simple_col_def ip_AddrTable_columns[] = {
|
---|
| 611 | { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntAddr */
|
---|
| 612 | { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntIfIndex */
|
---|
| 613 | { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntNetMask */
|
---|
| 614 | { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntBcastAddr */
|
---|
| 615 | { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipAdEntReasmMaxSize */
|
---|
| 616 | };
|
---|
| 617 |
|
---|
| 618 | static const struct snmp_table_simple_node ip_AddrTable = SNMP_TABLE_CREATE_SIMPLE(20, ip_AddrTable_columns, ip_AddrTable_get_cell_value, ip_AddrTable_get_next_cell_instance_and_value);
|
---|
| 619 |
|
---|
| 620 | static const struct snmp_table_simple_col_def ip_RouteTable_columns[] = {
|
---|
| 621 | { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteDest */
|
---|
| 622 | { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteIfIndex */
|
---|
| 623 | { 3, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric1 */
|
---|
| 624 | { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric2 */
|
---|
| 625 | { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric3 */
|
---|
| 626 | { 6, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric4 */
|
---|
| 627 | { 7, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteNextHop */
|
---|
| 628 | { 8, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteType */
|
---|
| 629 | { 9, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteProto */
|
---|
| 630 | { 10, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteAge */
|
---|
| 631 | { 11, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteMask */
|
---|
| 632 | { 12, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric5 */
|
---|
| 633 | { 13, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_VARIANT_VALUE_TYPE_PTR } /* ipRouteInfo */
|
---|
| 634 | };
|
---|
| 635 |
|
---|
| 636 | static const struct snmp_table_simple_node ip_RouteTable = SNMP_TABLE_CREATE_SIMPLE(21, ip_RouteTable_columns, ip_RouteTable_get_cell_value, ip_RouteTable_get_next_cell_instance_and_value);
|
---|
| 637 | #endif /* LWIP_IPV4 */
|
---|
| 638 |
|
---|
| 639 | #if LWIP_ARP && LWIP_IPV4
|
---|
| 640 | static const struct snmp_table_simple_col_def ip_NetToMediaTable_columns[] = {
|
---|
| 641 | { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaIfIndex */
|
---|
| 642 | { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* ipNetToMediaPhysAddress */
|
---|
| 643 | { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaNetAddress */
|
---|
| 644 | { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipNetToMediaType */
|
---|
| 645 | };
|
---|
| 646 |
|
---|
| 647 | static const struct snmp_table_simple_node ip_NetToMediaTable = SNMP_TABLE_CREATE_SIMPLE(22, ip_NetToMediaTable_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value);
|
---|
| 648 | #endif /* LWIP_ARP && LWIP_IPV4 */
|
---|
| 649 |
|
---|
| 650 | #if LWIP_IPV4
|
---|
| 651 | /* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
|
---|
| 652 | CREATE_LWIP_SYNC_NODE( 1, ip_Forwarding)
|
---|
| 653 | CREATE_LWIP_SYNC_NODE( 2, ip_DefaultTTL)
|
---|
| 654 | CREATE_LWIP_SYNC_NODE( 3, ip_InReceives)
|
---|
| 655 | CREATE_LWIP_SYNC_NODE( 4, ip_InHdrErrors)
|
---|
| 656 | CREATE_LWIP_SYNC_NODE( 5, ip_InAddrErrors)
|
---|
| 657 | CREATE_LWIP_SYNC_NODE( 6, ip_ForwDatagrams)
|
---|
| 658 | CREATE_LWIP_SYNC_NODE( 7, ip_InUnknownProtos)
|
---|
| 659 | CREATE_LWIP_SYNC_NODE( 8, ip_InDiscards)
|
---|
| 660 | CREATE_LWIP_SYNC_NODE( 9, ip_InDelivers)
|
---|
| 661 | CREATE_LWIP_SYNC_NODE(10, ip_OutRequests)
|
---|
| 662 | CREATE_LWIP_SYNC_NODE(11, ip_OutDiscards)
|
---|
| 663 | CREATE_LWIP_SYNC_NODE(12, ip_OutNoRoutes)
|
---|
| 664 | CREATE_LWIP_SYNC_NODE(13, ip_ReasmTimeout)
|
---|
| 665 | CREATE_LWIP_SYNC_NODE(14, ip_ReasmReqds)
|
---|
| 666 | CREATE_LWIP_SYNC_NODE(15, ip_ReasmOKs)
|
---|
| 667 | CREATE_LWIP_SYNC_NODE(15, ip_ReasmFails)
|
---|
| 668 | CREATE_LWIP_SYNC_NODE(17, ip_FragOKs)
|
---|
| 669 | CREATE_LWIP_SYNC_NODE(18, ip_FragFails)
|
---|
| 670 | CREATE_LWIP_SYNC_NODE(19, ip_FragCreates)
|
---|
| 671 | CREATE_LWIP_SYNC_NODE(20, ip_AddrTable)
|
---|
| 672 | CREATE_LWIP_SYNC_NODE(21, ip_RouteTable)
|
---|
| 673 | #if LWIP_ARP
|
---|
| 674 | CREATE_LWIP_SYNC_NODE(22, ip_NetToMediaTable)
|
---|
| 675 | #endif /* LWIP_ARP */
|
---|
| 676 | CREATE_LWIP_SYNC_NODE(23, ip_RoutingDiscards)
|
---|
| 677 |
|
---|
| 678 | static const struct snmp_node *const ip_nodes[] = {
|
---|
| 679 | &SYNC_NODE_NAME(ip_Forwarding).node.node,
|
---|
| 680 | &SYNC_NODE_NAME(ip_DefaultTTL).node.node,
|
---|
| 681 | &SYNC_NODE_NAME(ip_InReceives).node.node,
|
---|
| 682 | &SYNC_NODE_NAME(ip_InHdrErrors).node.node,
|
---|
| 683 | &SYNC_NODE_NAME(ip_InAddrErrors).node.node,
|
---|
| 684 | &SYNC_NODE_NAME(ip_ForwDatagrams).node.node,
|
---|
| 685 | &SYNC_NODE_NAME(ip_InUnknownProtos).node.node,
|
---|
| 686 | &SYNC_NODE_NAME(ip_InDiscards).node.node,
|
---|
| 687 | &SYNC_NODE_NAME(ip_InDelivers).node.node,
|
---|
| 688 | &SYNC_NODE_NAME(ip_OutRequests).node.node,
|
---|
| 689 | &SYNC_NODE_NAME(ip_OutDiscards).node.node,
|
---|
| 690 | &SYNC_NODE_NAME(ip_OutNoRoutes).node.node,
|
---|
| 691 | &SYNC_NODE_NAME(ip_ReasmTimeout).node.node,
|
---|
| 692 | &SYNC_NODE_NAME(ip_ReasmReqds).node.node,
|
---|
| 693 | &SYNC_NODE_NAME(ip_ReasmOKs).node.node,
|
---|
| 694 | &SYNC_NODE_NAME(ip_ReasmFails).node.node,
|
---|
| 695 | &SYNC_NODE_NAME(ip_FragOKs).node.node,
|
---|
| 696 | &SYNC_NODE_NAME(ip_FragFails).node.node,
|
---|
| 697 | &SYNC_NODE_NAME(ip_FragCreates).node.node,
|
---|
| 698 | &SYNC_NODE_NAME(ip_AddrTable).node.node,
|
---|
| 699 | &SYNC_NODE_NAME(ip_RouteTable).node.node,
|
---|
| 700 | #if LWIP_ARP
|
---|
| 701 | &SYNC_NODE_NAME(ip_NetToMediaTable).node.node,
|
---|
| 702 | #endif /* LWIP_ARP */
|
---|
| 703 | &SYNC_NODE_NAME(ip_RoutingDiscards).node.node
|
---|
| 704 | };
|
---|
| 705 |
|
---|
| 706 | const struct snmp_tree_node snmp_mib2_ip_root = SNMP_CREATE_TREE_NODE(4, ip_nodes);
|
---|
| 707 | #endif /* LWIP_IPV4 */
|
---|
| 708 |
|
---|
| 709 | /* --- at .1.3.6.1.2.1.3 ----------------------------------------------------- */
|
---|
| 710 |
|
---|
| 711 | #if LWIP_ARP && LWIP_IPV4
|
---|
| 712 | /* at node table is a subset of ip_nettomedia table (same rows but less columns) */
|
---|
| 713 | static const struct snmp_table_simple_col_def at_Table_columns[] = {
|
---|
| 714 | { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* atIfIndex */
|
---|
| 715 | { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* atPhysAddress */
|
---|
| 716 | { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 } /* atNetAddress */
|
---|
| 717 | };
|
---|
| 718 |
|
---|
| 719 | static const struct snmp_table_simple_node at_Table = SNMP_TABLE_CREATE_SIMPLE(1, at_Table_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value);
|
---|
| 720 |
|
---|
| 721 | /* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */
|
---|
| 722 | CREATE_LWIP_SYNC_NODE(1, at_Table)
|
---|
| 723 |
|
---|
| 724 | static const struct snmp_node *const at_nodes[] = {
|
---|
| 725 | &SYNC_NODE_NAME(at_Table).node.node
|
---|
| 726 | };
|
---|
| 727 |
|
---|
| 728 | const struct snmp_tree_node snmp_mib2_at_root = SNMP_CREATE_TREE_NODE(3, at_nodes);
|
---|
| 729 | #endif /* LWIP_ARP && LWIP_IPV4 */
|
---|
| 730 |
|
---|
| 731 | #endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */
|
---|