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Dependencies:   F7_Ethernet WebSocketClient mbed mcp3008

Fork of Nucleo_F746ZG_Ethernet by Dieter Graef

F7_Ethernet/lwip/include/lwip/snmp_msg.h@0:f9b6112278fe, 2016-06-18 (annotated)

Committer:
DieterGraef
Date:
Sat Jun 18 10:49:12 2016 +0000
Revision:
0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DieterGraef 0:f9b6112278fe 1 /**
DieterGraef 0:f9b6112278fe 2 * @file
DieterGraef 0:f9b6112278fe 3 * SNMP Agent message handling structures.
DieterGraef 0:f9b6112278fe 4 */
DieterGraef 0:f9b6112278fe 5
DieterGraef 0:f9b6112278fe 6 /*
DieterGraef 0:f9b6112278fe 7 * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
DieterGraef 0:f9b6112278fe 8 * All rights reserved.
DieterGraef 0:f9b6112278fe 9 *
DieterGraef 0:f9b6112278fe 10 * Redistribution and use in source and binary forms, with or without modification,
DieterGraef 0:f9b6112278fe 11 * are permitted provided that the following conditions are met:
DieterGraef 0:f9b6112278fe 12 *
DieterGraef 0:f9b6112278fe 13 * 1. Redistributions of source code must retain the above copyright notice,
DieterGraef 0:f9b6112278fe 14 * this list of conditions and the following disclaimer.
DieterGraef 0:f9b6112278fe 15 * 2. Redistributions in binary form must reproduce the above copyright notice,
DieterGraef 0:f9b6112278fe 16 * this list of conditions and the following disclaimer in the documentation
DieterGraef 0:f9b6112278fe 17 * and/or other materials provided with the distribution.
DieterGraef 0:f9b6112278fe 18 * 3. The name of the author may not be used to endorse or promote products
DieterGraef 0:f9b6112278fe 19 * derived from this software without specific prior written permission.
DieterGraef 0:f9b6112278fe 20 *
DieterGraef 0:f9b6112278fe 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
DieterGraef 0:f9b6112278fe 22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
DieterGraef 0:f9b6112278fe 23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
DieterGraef 0:f9b6112278fe 24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
DieterGraef 0:f9b6112278fe 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
DieterGraef 0:f9b6112278fe 26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
DieterGraef 0:f9b6112278fe 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
DieterGraef 0:f9b6112278fe 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
DieterGraef 0:f9b6112278fe 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
DieterGraef 0:f9b6112278fe 30 * OF SUCH DAMAGE.
DieterGraef 0:f9b6112278fe 31 *
DieterGraef 0:f9b6112278fe 32 * Author: Christiaan Simons <christiaan.simons@axon.tv>
DieterGraef 0:f9b6112278fe 33 */
DieterGraef 0:f9b6112278fe 34
DieterGraef 0:f9b6112278fe 35 #ifndef __LWIP_SNMP_MSG_H__
DieterGraef 0:f9b6112278fe 36 #define __LWIP_SNMP_MSG_H__
DieterGraef 0:f9b6112278fe 37
DieterGraef 0:f9b6112278fe 38 #include "lwip/opt.h"
DieterGraef 0:f9b6112278fe 39 #include "lwip/snmp.h"
DieterGraef 0:f9b6112278fe 40 #include "lwip/snmp_structs.h"
DieterGraef 0:f9b6112278fe 41 #include "lwip/ip_addr.h"
DieterGraef 0:f9b6112278fe 42 #include "lwip/err.h"
DieterGraef 0:f9b6112278fe 43
DieterGraef 0:f9b6112278fe 44 #if LWIP_SNMP
DieterGraef 0:f9b6112278fe 45
DieterGraef 0:f9b6112278fe 46 #if SNMP_PRIVATE_MIB
DieterGraef 0:f9b6112278fe 47 /* When using a private MIB, you have to create a file 'private_mib.h' that contains
DieterGraef 0:f9b6112278fe 48 * a 'struct mib_array_node mib_private' which contains your MIB. */
DieterGraef 0:f9b6112278fe 49 #include "private_mib.h"
DieterGraef 0:f9b6112278fe 50 #endif
DieterGraef 0:f9b6112278fe 51
DieterGraef 0:f9b6112278fe 52 #ifdef __cplusplus
DieterGraef 0:f9b6112278fe 53 extern "C" {
DieterGraef 0:f9b6112278fe 54 #endif
DieterGraef 0:f9b6112278fe 55
DieterGraef 0:f9b6112278fe 56 /* The listen port of the SNMP agent. Clients have to make their requests to
DieterGraef 0:f9b6112278fe 57 this port. Most standard clients won't work if you change this! */
DieterGraef 0:f9b6112278fe 58 #ifndef SNMP_IN_PORT
DieterGraef 0:f9b6112278fe 59 #define SNMP_IN_PORT 161
DieterGraef 0:f9b6112278fe 60 #endif
DieterGraef 0:f9b6112278fe 61 /* The remote port the SNMP agent sends traps to. Most standard trap sinks won't
DieterGraef 0:f9b6112278fe 62 work if you change this! */
DieterGraef 0:f9b6112278fe 63 #ifndef SNMP_TRAP_PORT
DieterGraef 0:f9b6112278fe 64 #define SNMP_TRAP_PORT 162
DieterGraef 0:f9b6112278fe 65 #endif
DieterGraef 0:f9b6112278fe 66
DieterGraef 0:f9b6112278fe 67 #define SNMP_ES_NOERROR 0
DieterGraef 0:f9b6112278fe 68 #define SNMP_ES_TOOBIG 1
DieterGraef 0:f9b6112278fe 69 #define SNMP_ES_NOSUCHNAME 2
DieterGraef 0:f9b6112278fe 70 #define SNMP_ES_BADVALUE 3
DieterGraef 0:f9b6112278fe 71 #define SNMP_ES_READONLY 4
DieterGraef 0:f9b6112278fe 72 #define SNMP_ES_GENERROR 5
DieterGraef 0:f9b6112278fe 73
DieterGraef 0:f9b6112278fe 74 #define SNMP_GENTRAP_COLDSTART 0
DieterGraef 0:f9b6112278fe 75 #define SNMP_GENTRAP_WARMSTART 1
DieterGraef 0:f9b6112278fe 76 #define SNMP_GENTRAP_AUTHFAIL 4
DieterGraef 0:f9b6112278fe 77 #define SNMP_GENTRAP_ENTERPRISESPC 6
DieterGraef 0:f9b6112278fe 78
DieterGraef 0:f9b6112278fe 79 struct snmp_varbind
DieterGraef 0:f9b6112278fe 80 {
DieterGraef 0:f9b6112278fe 81 /* next pointer, NULL for last in list */
DieterGraef 0:f9b6112278fe 82 struct snmp_varbind *next;
DieterGraef 0:f9b6112278fe 83 /* previous pointer, NULL for first in list */
DieterGraef 0:f9b6112278fe 84 struct snmp_varbind *prev;
DieterGraef 0:f9b6112278fe 85
DieterGraef 0:f9b6112278fe 86 /* object identifier length (in s32_t) */
DieterGraef 0:f9b6112278fe 87 u8_t ident_len;
DieterGraef 0:f9b6112278fe 88 /* object identifier array */
DieterGraef 0:f9b6112278fe 89 s32_t *ident;
DieterGraef 0:f9b6112278fe 90
DieterGraef 0:f9b6112278fe 91 /* object value ASN1 type */
DieterGraef 0:f9b6112278fe 92 u8_t value_type;
DieterGraef 0:f9b6112278fe 93 /* object value length (in u8_t) */
DieterGraef 0:f9b6112278fe 94 u8_t value_len;
DieterGraef 0:f9b6112278fe 95 /* object value */
DieterGraef 0:f9b6112278fe 96 void *value;
DieterGraef 0:f9b6112278fe 97
DieterGraef 0:f9b6112278fe 98 /* encoding varbind seq length length */
DieterGraef 0:f9b6112278fe 99 u8_t seqlenlen;
DieterGraef 0:f9b6112278fe 100 /* encoding object identifier length length */
DieterGraef 0:f9b6112278fe 101 u8_t olenlen;
DieterGraef 0:f9b6112278fe 102 /* encoding object value length length */
DieterGraef 0:f9b6112278fe 103 u8_t vlenlen;
DieterGraef 0:f9b6112278fe 104 /* encoding varbind seq length */
DieterGraef 0:f9b6112278fe 105 u16_t seqlen;
DieterGraef 0:f9b6112278fe 106 /* encoding object identifier length */
DieterGraef 0:f9b6112278fe 107 u16_t olen;
DieterGraef 0:f9b6112278fe 108 /* encoding object value length */
DieterGraef 0:f9b6112278fe 109 u16_t vlen;
DieterGraef 0:f9b6112278fe 110 };
DieterGraef 0:f9b6112278fe 111
DieterGraef 0:f9b6112278fe 112 struct snmp_varbind_root
DieterGraef 0:f9b6112278fe 113 {
DieterGraef 0:f9b6112278fe 114 struct snmp_varbind *head;
DieterGraef 0:f9b6112278fe 115 struct snmp_varbind *tail;
DieterGraef 0:f9b6112278fe 116 /* number of variable bindings in list */
DieterGraef 0:f9b6112278fe 117 u8_t count;
DieterGraef 0:f9b6112278fe 118 /* encoding varbind-list seq length length */
DieterGraef 0:f9b6112278fe 119 u8_t seqlenlen;
DieterGraef 0:f9b6112278fe 120 /* encoding varbind-list seq length */
DieterGraef 0:f9b6112278fe 121 u16_t seqlen;
DieterGraef 0:f9b6112278fe 122 };
DieterGraef 0:f9b6112278fe 123
DieterGraef 0:f9b6112278fe 124 /** output response message header length fields */
DieterGraef 0:f9b6112278fe 125 struct snmp_resp_header_lengths
DieterGraef 0:f9b6112278fe 126 {
DieterGraef 0:f9b6112278fe 127 /* encoding error-index length length */
DieterGraef 0:f9b6112278fe 128 u8_t erridxlenlen;
DieterGraef 0:f9b6112278fe 129 /* encoding error-status length length */
DieterGraef 0:f9b6112278fe 130 u8_t errstatlenlen;
DieterGraef 0:f9b6112278fe 131 /* encoding request id length length */
DieterGraef 0:f9b6112278fe 132 u8_t ridlenlen;
DieterGraef 0:f9b6112278fe 133 /* encoding pdu length length */
DieterGraef 0:f9b6112278fe 134 u8_t pdulenlen;
DieterGraef 0:f9b6112278fe 135 /* encoding community length length */
DieterGraef 0:f9b6112278fe 136 u8_t comlenlen;
DieterGraef 0:f9b6112278fe 137 /* encoding version length length */
DieterGraef 0:f9b6112278fe 138 u8_t verlenlen;
DieterGraef 0:f9b6112278fe 139 /* encoding sequence length length */
DieterGraef 0:f9b6112278fe 140 u8_t seqlenlen;
DieterGraef 0:f9b6112278fe 141
DieterGraef 0:f9b6112278fe 142 /* encoding error-index length */
DieterGraef 0:f9b6112278fe 143 u16_t erridxlen;
DieterGraef 0:f9b6112278fe 144 /* encoding error-status length */
DieterGraef 0:f9b6112278fe 145 u16_t errstatlen;
DieterGraef 0:f9b6112278fe 146 /* encoding request id length */
DieterGraef 0:f9b6112278fe 147 u16_t ridlen;
DieterGraef 0:f9b6112278fe 148 /* encoding pdu length */
DieterGraef 0:f9b6112278fe 149 u16_t pdulen;
DieterGraef 0:f9b6112278fe 150 /* encoding community length */
DieterGraef 0:f9b6112278fe 151 u16_t comlen;
DieterGraef 0:f9b6112278fe 152 /* encoding version length */
DieterGraef 0:f9b6112278fe 153 u16_t verlen;
DieterGraef 0:f9b6112278fe 154 /* encoding sequence length */
DieterGraef 0:f9b6112278fe 155 u16_t seqlen;
DieterGraef 0:f9b6112278fe 156 };
DieterGraef 0:f9b6112278fe 157
DieterGraef 0:f9b6112278fe 158 /** output response message header length fields */
DieterGraef 0:f9b6112278fe 159 struct snmp_trap_header_lengths
DieterGraef 0:f9b6112278fe 160 {
DieterGraef 0:f9b6112278fe 161 /* encoding timestamp length length */
DieterGraef 0:f9b6112278fe 162 u8_t tslenlen;
DieterGraef 0:f9b6112278fe 163 /* encoding specific-trap length length */
DieterGraef 0:f9b6112278fe 164 u8_t strplenlen;
DieterGraef 0:f9b6112278fe 165 /* encoding generic-trap length length */
DieterGraef 0:f9b6112278fe 166 u8_t gtrplenlen;
DieterGraef 0:f9b6112278fe 167 /* encoding agent-addr length length */
DieterGraef 0:f9b6112278fe 168 u8_t aaddrlenlen;
DieterGraef 0:f9b6112278fe 169 /* encoding enterprise-id length length */
DieterGraef 0:f9b6112278fe 170 u8_t eidlenlen;
DieterGraef 0:f9b6112278fe 171 /* encoding pdu length length */
DieterGraef 0:f9b6112278fe 172 u8_t pdulenlen;
DieterGraef 0:f9b6112278fe 173 /* encoding community length length */
DieterGraef 0:f9b6112278fe 174 u8_t comlenlen;
DieterGraef 0:f9b6112278fe 175 /* encoding version length length */
DieterGraef 0:f9b6112278fe 176 u8_t verlenlen;
DieterGraef 0:f9b6112278fe 177 /* encoding sequence length length */
DieterGraef 0:f9b6112278fe 178 u8_t seqlenlen;
DieterGraef 0:f9b6112278fe 179
DieterGraef 0:f9b6112278fe 180 /* encoding timestamp length */
DieterGraef 0:f9b6112278fe 181 u16_t tslen;
DieterGraef 0:f9b6112278fe 182 /* encoding specific-trap length */
DieterGraef 0:f9b6112278fe 183 u16_t strplen;
DieterGraef 0:f9b6112278fe 184 /* encoding generic-trap length */
DieterGraef 0:f9b6112278fe 185 u16_t gtrplen;
DieterGraef 0:f9b6112278fe 186 /* encoding agent-addr length */
DieterGraef 0:f9b6112278fe 187 u16_t aaddrlen;
DieterGraef 0:f9b6112278fe 188 /* encoding enterprise-id length */
DieterGraef 0:f9b6112278fe 189 u16_t eidlen;
DieterGraef 0:f9b6112278fe 190 /* encoding pdu length */
DieterGraef 0:f9b6112278fe 191 u16_t pdulen;
DieterGraef 0:f9b6112278fe 192 /* encoding community length */
DieterGraef 0:f9b6112278fe 193 u16_t comlen;
DieterGraef 0:f9b6112278fe 194 /* encoding version length */
DieterGraef 0:f9b6112278fe 195 u16_t verlen;
DieterGraef 0:f9b6112278fe 196 /* encoding sequence length */
DieterGraef 0:f9b6112278fe 197 u16_t seqlen;
DieterGraef 0:f9b6112278fe 198 };
DieterGraef 0:f9b6112278fe 199
DieterGraef 0:f9b6112278fe 200 /* Accepting new SNMP messages. */
DieterGraef 0:f9b6112278fe 201 #define SNMP_MSG_EMPTY 0
DieterGraef 0:f9b6112278fe 202 /* Search for matching object for variable binding. */
DieterGraef 0:f9b6112278fe 203 #define SNMP_MSG_SEARCH_OBJ 1
DieterGraef 0:f9b6112278fe 204 /* Perform SNMP operation on in-memory object.
DieterGraef 0:f9b6112278fe 205 Pass-through states, for symmetry only. */
DieterGraef 0:f9b6112278fe 206 #define SNMP_MSG_INTERNAL_GET_OBJDEF 2
DieterGraef 0:f9b6112278fe 207 #define SNMP_MSG_INTERNAL_GET_VALUE 3
DieterGraef 0:f9b6112278fe 208 #define SNMP_MSG_INTERNAL_SET_TEST 4
DieterGraef 0:f9b6112278fe 209 #define SNMP_MSG_INTERNAL_GET_OBJDEF_S 5
DieterGraef 0:f9b6112278fe 210 #define SNMP_MSG_INTERNAL_SET_VALUE 6
DieterGraef 0:f9b6112278fe 211 /* Perform SNMP operation on object located externally.
DieterGraef 0:f9b6112278fe 212 In theory this could be used for building a proxy agent.
DieterGraef 0:f9b6112278fe 213 Practical use is for an enterprise spc. app. gateway. */
DieterGraef 0:f9b6112278fe 214 #define SNMP_MSG_EXTERNAL_GET_OBJDEF 7
DieterGraef 0:f9b6112278fe 215 #define SNMP_MSG_EXTERNAL_GET_VALUE 8
DieterGraef 0:f9b6112278fe 216 #define SNMP_MSG_EXTERNAL_SET_TEST 9
DieterGraef 0:f9b6112278fe 217 #define SNMP_MSG_EXTERNAL_GET_OBJDEF_S 10
DieterGraef 0:f9b6112278fe 218 #define SNMP_MSG_EXTERNAL_SET_VALUE 11
DieterGraef 0:f9b6112278fe 219
DieterGraef 0:f9b6112278fe 220 #define SNMP_COMMUNITY_STR_LEN 64
DieterGraef 0:f9b6112278fe 221 struct snmp_msg_pstat
DieterGraef 0:f9b6112278fe 222 {
DieterGraef 0:f9b6112278fe 223 /* lwIP local port (161) binding */
DieterGraef 0:f9b6112278fe 224 struct udp_pcb *pcb;
DieterGraef 0:f9b6112278fe 225 /* source IP address */
DieterGraef 0:f9b6112278fe 226 ip_addr_t sip;
DieterGraef 0:f9b6112278fe 227 /* source UDP port */
DieterGraef 0:f9b6112278fe 228 u16_t sp;
DieterGraef 0:f9b6112278fe 229 /* request type */
DieterGraef 0:f9b6112278fe 230 u8_t rt;
DieterGraef 0:f9b6112278fe 231 /* request ID */
DieterGraef 0:f9b6112278fe 232 s32_t rid;
DieterGraef 0:f9b6112278fe 233 /* error status */
DieterGraef 0:f9b6112278fe 234 s32_t error_status;
DieterGraef 0:f9b6112278fe 235 /* error index */
DieterGraef 0:f9b6112278fe 236 s32_t error_index;
DieterGraef 0:f9b6112278fe 237 /* community name (zero terminated) */
DieterGraef 0:f9b6112278fe 238 u8_t community[SNMP_COMMUNITY_STR_LEN + 1];
DieterGraef 0:f9b6112278fe 239 /* community string length (exclusive zero term) */
DieterGraef 0:f9b6112278fe 240 u8_t com_strlen;
DieterGraef 0:f9b6112278fe 241 /* one out of MSG_EMPTY, MSG_DEMUX, MSG_INTERNAL, MSG_EXTERNAL_x */
DieterGraef 0:f9b6112278fe 242 u8_t state;
DieterGraef 0:f9b6112278fe 243 /* saved arguments for MSG_EXTERNAL_x */
DieterGraef 0:f9b6112278fe 244 struct mib_external_node *ext_mib_node;
DieterGraef 0:f9b6112278fe 245 struct snmp_name_ptr ext_name_ptr;
DieterGraef 0:f9b6112278fe 246 struct obj_def ext_object_def;
DieterGraef 0:f9b6112278fe 247 struct snmp_obj_id ext_oid;
DieterGraef 0:f9b6112278fe 248 /* index into input variable binding list */
DieterGraef 0:f9b6112278fe 249 u8_t vb_idx;
DieterGraef 0:f9b6112278fe 250 /* ptr into input variable binding list */
DieterGraef 0:f9b6112278fe 251 struct snmp_varbind *vb_ptr;
DieterGraef 0:f9b6112278fe 252 /* list of variable bindings from input */
DieterGraef 0:f9b6112278fe 253 struct snmp_varbind_root invb;
DieterGraef 0:f9b6112278fe 254 /* list of variable bindings to output */
DieterGraef 0:f9b6112278fe 255 struct snmp_varbind_root outvb;
DieterGraef 0:f9b6112278fe 256 /* output response lengths used in ASN encoding */
DieterGraef 0:f9b6112278fe 257 struct snmp_resp_header_lengths rhl;
DieterGraef 0:f9b6112278fe 258 };
DieterGraef 0:f9b6112278fe 259
DieterGraef 0:f9b6112278fe 260 struct snmp_msg_trap
DieterGraef 0:f9b6112278fe 261 {
DieterGraef 0:f9b6112278fe 262 /* lwIP local port (161) binding */
DieterGraef 0:f9b6112278fe 263 struct udp_pcb *pcb;
DieterGraef 0:f9b6112278fe 264 /* destination IP address in network order */
DieterGraef 0:f9b6112278fe 265 ip_addr_t dip;
DieterGraef 0:f9b6112278fe 266
DieterGraef 0:f9b6112278fe 267 /* source enterprise ID (sysObjectID) */
DieterGraef 0:f9b6112278fe 268 struct snmp_obj_id *enterprise;
DieterGraef 0:f9b6112278fe 269 /* source IP address, raw network order format */
DieterGraef 0:f9b6112278fe 270 u8_t sip_raw[4];
DieterGraef 0:f9b6112278fe 271 /* generic trap code */
DieterGraef 0:f9b6112278fe 272 u32_t gen_trap;
DieterGraef 0:f9b6112278fe 273 /* specific trap code */
DieterGraef 0:f9b6112278fe 274 u32_t spc_trap;
DieterGraef 0:f9b6112278fe 275 /* timestamp */
DieterGraef 0:f9b6112278fe 276 u32_t ts;
DieterGraef 0:f9b6112278fe 277 /* list of variable bindings to output */
DieterGraef 0:f9b6112278fe 278 struct snmp_varbind_root outvb;
DieterGraef 0:f9b6112278fe 279 /* output trap lengths used in ASN encoding */
DieterGraef 0:f9b6112278fe 280 struct snmp_trap_header_lengths thl;
DieterGraef 0:f9b6112278fe 281 };
DieterGraef 0:f9b6112278fe 282
DieterGraef 0:f9b6112278fe 283 /** Agent Version constant, 0 = v1 oddity */
DieterGraef 0:f9b6112278fe 284 extern const s32_t snmp_version;
DieterGraef 0:f9b6112278fe 285 /** Agent default "public" community string */
DieterGraef 0:f9b6112278fe 286 extern const char snmp_publiccommunity[7];
DieterGraef 0:f9b6112278fe 287
DieterGraef 0:f9b6112278fe 288 extern struct snmp_msg_trap trap_msg;
DieterGraef 0:f9b6112278fe 289
DieterGraef 0:f9b6112278fe 290 /** Agent setup, start listening to port 161. */
DieterGraef 0:f9b6112278fe 291 void snmp_init(void);
DieterGraef 0:f9b6112278fe 292 void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable);
DieterGraef 0:f9b6112278fe 293 void snmp_trap_dst_ip_set(u8_t dst_idx, ip_addr_t *dst);
DieterGraef 0:f9b6112278fe 294
DieterGraef 0:f9b6112278fe 295 /** Varbind-list functions. */
DieterGraef 0:f9b6112278fe 296 struct snmp_varbind* snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len);
DieterGraef 0:f9b6112278fe 297 void snmp_varbind_free(struct snmp_varbind *vb);
DieterGraef 0:f9b6112278fe 298 void snmp_varbind_list_free(struct snmp_varbind_root *root);
DieterGraef 0:f9b6112278fe 299 void snmp_varbind_tail_add(struct snmp_varbind_root *root, struct snmp_varbind *vb);
DieterGraef 0:f9b6112278fe 300 struct snmp_varbind* snmp_varbind_tail_remove(struct snmp_varbind_root *root);
DieterGraef 0:f9b6112278fe 301
DieterGraef 0:f9b6112278fe 302 /** Handle an internal (recv) or external (private response) event. */
DieterGraef 0:f9b6112278fe 303 void snmp_msg_event(u8_t request_id);
DieterGraef 0:f9b6112278fe 304 err_t snmp_send_response(struct snmp_msg_pstat *m_stat);
DieterGraef 0:f9b6112278fe 305 err_t snmp_send_trap(s8_t generic_trap, struct snmp_obj_id *eoid, s32_t specific_trap);
DieterGraef 0:f9b6112278fe 306 void snmp_coldstart_trap(void);
DieterGraef 0:f9b6112278fe 307 void snmp_authfail_trap(void);
DieterGraef 0:f9b6112278fe 308
DieterGraef 0:f9b6112278fe 309 #ifdef __cplusplus
DieterGraef 0:f9b6112278fe 310 }
DieterGraef 0:f9b6112278fe 311 #endif
DieterGraef 0:f9b6112278fe 312
DieterGraef 0:f9b6112278fe 313 #endif /* LWIP_SNMP */
DieterGraef 0:f9b6112278fe 314
DieterGraef 0:f9b6112278fe 315 #endif /* __LWIP_SNMP_MSG_H__ */