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lwip_snmp_mib2_snmp.c
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00001 /** 00002 * @file 00003 * Management Information Base II (RFC1213) SNMP objects and functions. 00004 */ 00005 00006 /* 00007 * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without modification, 00011 * are permitted provided that the following conditions are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright notice, 00014 * this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright notice, 00016 * this list of conditions and the following disclaimer in the documentation 00017 * and/or other materials provided with the distribution. 00018 * 3. The name of the author may not be used to endorse or promote products 00019 * derived from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00022 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00024 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00029 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00030 * OF SUCH DAMAGE. 00031 * 00032 * Author: Dirk Ziegelmeier <dziegel@gmx.de> 00033 * Christiaan Simons <christiaan.simons@axon.tv> 00034 */ 00035 00036 #include "lwip/snmp.h" 00037 #include "lwip/apps/snmp.h" 00038 #include "lwip/apps/snmp_core.h" 00039 #include "lwip/apps/snmp_mib2.h" 00040 #include "lwip/apps/snmp_scalar.h" 00041 00042 #if LWIP_SNMP && SNMP_LWIP_MIB2 00043 00044 #define MIB2_AUTH_TRAPS_ENABLED 1 00045 #define MIB2_AUTH_TRAPS_DISABLED 2 00046 00047 /* --- snmp .1.3.6.1.2.1.11 ----------------------------------------------------- */ 00048 static s16_t 00049 snmp_get_value(const struct snmp_scalar_array_node_def *node, void *value) 00050 { 00051 u32_t *uint_ptr = (u32_t*)value; 00052 switch (node->oid) { 00053 case 1: /* snmpInPkts */ 00054 *uint_ptr = snmp_stats.inpkts; 00055 break; 00056 case 2: /* snmpOutPkts */ 00057 *uint_ptr = snmp_stats.outpkts; 00058 break; 00059 case 3: /* snmpInBadVersions */ 00060 *uint_ptr = snmp_stats.inbadversions; 00061 break; 00062 case 4: /* snmpInBadCommunityNames */ 00063 *uint_ptr = snmp_stats.inbadcommunitynames; 00064 break; 00065 case 5: /* snmpInBadCommunityUses */ 00066 *uint_ptr = snmp_stats.inbadcommunityuses; 00067 break; 00068 case 6: /* snmpInASNParseErrs */ 00069 *uint_ptr = snmp_stats.inasnparseerrs; 00070 break; 00071 case 8: /* snmpInTooBigs */ 00072 *uint_ptr = snmp_stats.intoobigs; 00073 break; 00074 case 9: /* snmpInNoSuchNames */ 00075 *uint_ptr = snmp_stats.innosuchnames; 00076 break; 00077 case 10: /* snmpInBadValues */ 00078 *uint_ptr = snmp_stats.inbadvalues; 00079 break; 00080 case 11: /* snmpInReadOnlys */ 00081 *uint_ptr = snmp_stats.inreadonlys; 00082 break; 00083 case 12: /* snmpInGenErrs */ 00084 *uint_ptr = snmp_stats.ingenerrs; 00085 break; 00086 case 13: /* snmpInTotalReqVars */ 00087 *uint_ptr = snmp_stats.intotalreqvars; 00088 break; 00089 case 14: /* snmpInTotalSetVars */ 00090 *uint_ptr = snmp_stats.intotalsetvars; 00091 break; 00092 case 15: /* snmpInGetRequests */ 00093 *uint_ptr = snmp_stats.ingetrequests; 00094 break; 00095 case 16: /* snmpInGetNexts */ 00096 *uint_ptr = snmp_stats.ingetnexts; 00097 break; 00098 case 17: /* snmpInSetRequests */ 00099 *uint_ptr = snmp_stats.insetrequests; 00100 break; 00101 case 18: /* snmpInGetResponses */ 00102 *uint_ptr = snmp_stats.ingetresponses; 00103 break; 00104 case 19: /* snmpInTraps */ 00105 *uint_ptr = snmp_stats.intraps; 00106 break; 00107 case 20: /* snmpOutTooBigs */ 00108 *uint_ptr = snmp_stats.outtoobigs; 00109 break; 00110 case 21: /* snmpOutNoSuchNames */ 00111 *uint_ptr = snmp_stats.outnosuchnames; 00112 break; 00113 case 22: /* snmpOutBadValues */ 00114 *uint_ptr = snmp_stats.outbadvalues; 00115 break; 00116 case 24: /* snmpOutGenErrs */ 00117 *uint_ptr = snmp_stats.outgenerrs; 00118 break; 00119 case 25: /* snmpOutGetRequests */ 00120 *uint_ptr = snmp_stats.outgetrequests; 00121 break; 00122 case 26: /* snmpOutGetNexts */ 00123 *uint_ptr = snmp_stats.outgetnexts; 00124 break; 00125 case 27: /* snmpOutSetRequests */ 00126 *uint_ptr = snmp_stats.outsetrequests; 00127 break; 00128 case 28: /* snmpOutGetResponses */ 00129 *uint_ptr = snmp_stats.outgetresponses; 00130 break; 00131 case 29: /* snmpOutTraps */ 00132 *uint_ptr = snmp_stats.outtraps; 00133 break; 00134 case 30: /* snmpEnableAuthenTraps */ 00135 if (snmp_get_auth_traps_enabled() == SNMP_AUTH_TRAPS_DISABLED) { 00136 *uint_ptr = MIB2_AUTH_TRAPS_DISABLED; 00137 } else { 00138 *uint_ptr = MIB2_AUTH_TRAPS_ENABLED; 00139 } 00140 break; 00141 case 31: /* snmpSilentDrops */ 00142 *uint_ptr = 0; /* not supported */ 00143 break; 00144 case 32: /* snmpProxyDrops */ 00145 *uint_ptr = 0; /* not supported */ 00146 break; 00147 default: 00148 LWIP_DEBUGF(SNMP_MIB_DEBUG,("snmp_get_value(): unknown id: %"S32_F"\n", node->oid)); 00149 return 0; 00150 } 00151 00152 return sizeof(*uint_ptr); 00153 } 00154 00155 static snmp_err_t 00156 snmp_set_test(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) 00157 { 00158 snmp_err_t ret = SNMP_ERR_WRONGVALUE; 00159 LWIP_UNUSED_ARG(len); 00160 00161 if (node->oid == 30) { 00162 /* snmpEnableAuthenTraps */ 00163 s32_t *sint_ptr = (s32_t*)value; 00164 00165 /* we should have writable non-volatile mem here */ 00166 if ((*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) || (*sint_ptr == MIB2_AUTH_TRAPS_ENABLED)) { 00167 ret = SNMP_ERR_NOERROR; 00168 } 00169 } 00170 return ret; 00171 } 00172 00173 static snmp_err_t 00174 snmp_set_value(const struct snmp_scalar_array_node_def *node, u16_t len, void *value) 00175 { 00176 LWIP_UNUSED_ARG(len); 00177 00178 if (node->oid == 30) { 00179 /* snmpEnableAuthenTraps */ 00180 s32_t *sint_ptr = (s32_t*)value; 00181 if (*sint_ptr == MIB2_AUTH_TRAPS_DISABLED) { 00182 snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_DISABLED); 00183 } else { 00184 snmp_set_auth_traps_enabled(SNMP_AUTH_TRAPS_ENABLED); 00185 } 00186 } 00187 00188 return SNMP_ERR_NOERROR; 00189 } 00190 00191 /* the following nodes access variables in SNMP stack (snmp_stats) from SNMP worker thread -> OK, no sync needed */ 00192 static const struct snmp_scalar_array_node_def snmp_nodes[] = { 00193 { 1, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInPkts */ 00194 { 2, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutPkts */ 00195 { 3, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadVersions */ 00196 { 4, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityNames */ 00197 { 5, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadCommunityUses */ 00198 { 6, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInASNParseErrs */ 00199 { 8, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTooBigs */ 00200 { 9, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInNoSuchNames */ 00201 {10, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInBadValues */ 00202 {11, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInReadOnlys */ 00203 {12, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGenErrs */ 00204 {13, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalReqVars */ 00205 {14, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTotalSetVars */ 00206 {15, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetRequests */ 00207 {16, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetNexts */ 00208 {17, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInSetRequests */ 00209 {18, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInGetResponses */ 00210 {19, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpInTraps */ 00211 {20, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTooBigs */ 00212 {21, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutNoSuchNames */ 00213 {22, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutBadValues */ 00214 {24, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGenErrs */ 00215 {25, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetRequests */ 00216 {26, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetNexts */ 00217 {27, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutSetRequests */ 00218 {28, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutGetResponses */ 00219 {29, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpOutTraps */ 00220 {30, SNMP_ASN1_TYPE_INTEGER, SNMP_NODE_INSTANCE_READ_WRITE}, /* snmpEnableAuthenTraps */ 00221 {31, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY}, /* snmpSilentDrops */ 00222 {32, SNMP_ASN1_TYPE_COUNTER, SNMP_NODE_INSTANCE_READ_ONLY} /* snmpProxyDrops */ 00223 }; 00224 00225 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); 00226 00227 #endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */
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