Suga koubou
SNMP Agent http://mbed.org/users/okini3939/notebook/agentbed-library/
Dependents: WeatherPlatform_20110408 WeatherPlatform WeatherStation
Agentbed.h@2:9e4369522e03, 2011-01-28 (annotated)
- Committer:
- okini3939
- Date:
- Fri Jan 28 09:17:03 2011 +0000
- Revision:
- 2:9e4369522e03
- Parent:
- 1:b2db0ea96703
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| okini3939 | 0:bb21da73024a | 1 | /* |
| okini3939 | 0:bb21da73024a | 2 | Agentbed library |
| okini3939 | 0:bb21da73024a | 3 | Modified for mbed, 2010 Suga. |
| okini3939 | 0:bb21da73024a | 4 | |
| okini3939 | 0:bb21da73024a | 5 | |
| okini3939 | 0:bb21da73024a | 6 | Agentuino.cpp - An Arduino library for a lightweight SNMP Agent. |
| okini3939 | 0:bb21da73024a | 7 | Copyright (C) 2010 Eric C. Gionet <lavco_eg@hotmail.com> |
| okini3939 | 0:bb21da73024a | 8 | All rights reserved. |
| okini3939 | 0:bb21da73024a | 9 | |
| okini3939 | 0:bb21da73024a | 10 | This library is free software; you can redistribute it and/or |
| okini3939 | 0:bb21da73024a | 11 | modify it under the terms of the GNU Lesser General Public |
| okini3939 | 0:bb21da73024a | 12 | License as published by the Free Software Foundation; either |
| okini3939 | 0:bb21da73024a | 13 | version 2.1 of the License, or (at your option) any later version. |
| okini3939 | 0:bb21da73024a | 14 | |
| okini3939 | 0:bb21da73024a | 15 | This library is distributed in the hope that it will be useful, |
| okini3939 | 0:bb21da73024a | 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| okini3939 | 0:bb21da73024a | 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| okini3939 | 0:bb21da73024a | 18 | Lesser General Public License for more details. |
| okini3939 | 0:bb21da73024a | 19 | |
| okini3939 | 0:bb21da73024a | 20 | You should have received a copy of the GNU Lesser General Public |
| okini3939 | 0:bb21da73024a | 21 | License along with this library; if not, write to the Free Software |
| okini3939 | 0:bb21da73024a | 22 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| okini3939 | 0:bb21da73024a | 23 | */ |
| okini3939 | 0:bb21da73024a | 24 | |
| okini3939 | 0:bb21da73024a | 25 | #ifndef Agentbed_h |
| okini3939 | 0:bb21da73024a | 26 | #define Agentbed_h |
| okini3939 | 0:bb21da73024a | 27 | |
| okini3939 | 0:bb21da73024a | 28 | #define SNMP_DEFAULT_PORT 161 |
| okini3939 | 0:bb21da73024a | 29 | #define SNMP_MIN_OID_LEN 2 |
| okini3939 | 0:bb21da73024a | 30 | #define SNMP_MAX_OID_LEN 64 // 128 |
| okini3939 | 0:bb21da73024a | 31 | #define SNMP_MAX_NAME_LEN 20 |
| okini3939 | 0:bb21da73024a | 32 | #define SNMP_MAX_VALUE_LEN 64 // 128 ??? should limit this |
| okini3939 | 0:bb21da73024a | 33 | #define SNMP_MAX_PACKET_LEN SNMP_MAX_VALUE_LEN + SNMP_MAX_OID_LEN + 25 //??? |
| okini3939 | 0:bb21da73024a | 34 | #define SNMP_FREE(s) do { if (s) { free((void *)s); s=NULL; } } while(0) |
| okini3939 | 0:bb21da73024a | 35 | //Frees a pointer only if it is !NULL and sets its value to NULL. |
| okini3939 | 0:bb21da73024a | 36 | |
| okini3939 | 0:bb21da73024a | 37 | #include "mbed.h" |
| okini3939 | 0:bb21da73024a | 38 | #include "EthernetNetIf.h" |
| okini3939 | 0:bb21da73024a | 39 | #include "UDPSocket.h" |
| okini3939 | 0:bb21da73024a | 40 | #include <stdlib.h> |
| okini3939 | 0:bb21da73024a | 41 | |
| okini3939 | 0:bb21da73024a | 42 | extern "C" { |
| okini3939 | 0:bb21da73024a | 43 | // callback function |
| okini3939 | 0:bb21da73024a | 44 | typedef void (*onPduReceiveCallback)(void); |
| okini3939 | 0:bb21da73024a | 45 | } |
| okini3939 | 0:bb21da73024a | 46 | |
| okini3939 | 0:bb21da73024a | 47 | //typedef long long int64_t; |
| okini3939 | 0:bb21da73024a | 48 | typedef unsigned long long uint64_t; |
| okini3939 | 0:bb21da73024a | 49 | //typedef long int32_t; |
| okini3939 | 0:bb21da73024a | 50 | //typedef unsigned long uint32_t; |
| okini3939 | 0:bb21da73024a | 51 | //typedef unsigned char uint8_t; |
| okini3939 | 0:bb21da73024a | 52 | //typedef short int16_t; |
| okini3939 | 0:bb21da73024a | 53 | //typedef unsigned short uint16_t; |
| okini3939 | 0:bb21da73024a | 54 | typedef unsigned char byte; |
| okini3939 | 0:bb21da73024a | 55 | |
| okini3939 | 0:bb21da73024a | 56 | typedef union uint64_u { |
| okini3939 | 0:bb21da73024a | 57 | uint64_t uint64; |
| okini3939 | 0:bb21da73024a | 58 | byte data[8]; |
| okini3939 | 0:bb21da73024a | 59 | } uint64_u; |
| okini3939 | 0:bb21da73024a | 60 | |
| okini3939 | 0:bb21da73024a | 61 | typedef union int32_u { |
| okini3939 | 0:bb21da73024a | 62 | int32_t int32; |
| okini3939 | 0:bb21da73024a | 63 | byte data[4]; |
| okini3939 | 0:bb21da73024a | 64 | } int32_u; |
| okini3939 | 0:bb21da73024a | 65 | |
| okini3939 | 0:bb21da73024a | 66 | typedef union uint32_u{ |
| okini3939 | 0:bb21da73024a | 67 | uint32_t uint32; |
| okini3939 | 0:bb21da73024a | 68 | byte data[4]; |
| okini3939 | 0:bb21da73024a | 69 | } uint32_u; |
| okini3939 | 0:bb21da73024a | 70 | |
| okini3939 | 0:bb21da73024a | 71 | typedef union int16_u { |
| okini3939 | 0:bb21da73024a | 72 | int16_t int16; |
| okini3939 | 0:bb21da73024a | 73 | byte data[2]; |
| okini3939 | 0:bb21da73024a | 74 | } int16_u; |
| okini3939 | 0:bb21da73024a | 75 | |
| okini3939 | 0:bb21da73024a | 76 | //typedef union uint16_u { |
| okini3939 | 0:bb21da73024a | 77 | // uint16_t uint16; |
| okini3939 | 0:bb21da73024a | 78 | // byte data[2]; |
| okini3939 | 0:bb21da73024a | 79 | //}; |
| okini3939 | 0:bb21da73024a | 80 | |
| okini3939 | 1:b2db0ea96703 | 81 | typedef union float_u{ |
| okini3939 | 1:b2db0ea96703 | 82 | float float_t; |
| okini3939 | 1:b2db0ea96703 | 83 | byte data[4]; |
| okini3939 | 1:b2db0ea96703 | 84 | } float_u; |
| okini3939 | 1:b2db0ea96703 | 85 | |
| okini3939 | 0:bb21da73024a | 86 | enum ASN_BER_BASE_TYPES { |
| okini3939 | 0:bb21da73024a | 87 | // ASN/BER base types |
| okini3939 | 0:bb21da73024a | 88 | ASN_BER_BASE_UNIVERSAL = 0x0, |
| okini3939 | 0:bb21da73024a | 89 | ASN_BER_BASE_APPLICATION = 0x40, |
| okini3939 | 0:bb21da73024a | 90 | ASN_BER_BASE_CONTEXT = 0x80, |
| okini3939 | 0:bb21da73024a | 91 | ASN_BER_BASE_PUBLIC = 0xC0, |
| okini3939 | 0:bb21da73024a | 92 | ASN_BER_BASE_PRIMITIVE = 0x0, |
| okini3939 | 0:bb21da73024a | 93 | ASN_BER_BASE_CONSTRUCTOR = 0x20 |
| okini3939 | 0:bb21da73024a | 94 | }; |
| okini3939 | 0:bb21da73024a | 95 | |
| okini3939 | 0:bb21da73024a | 96 | enum SNMP_PDU_TYPES { |
| okini3939 | 0:bb21da73024a | 97 | // PDU choices |
| okini3939 | 0:bb21da73024a | 98 | SNMP_PDU_GET = ASN_BER_BASE_CONTEXT | ASN_BER_BASE_CONSTRUCTOR | 0, |
| okini3939 | 0:bb21da73024a | 99 | SNMP_PDU_GET_NEXT = ASN_BER_BASE_CONTEXT | ASN_BER_BASE_CONSTRUCTOR | 1, |
| okini3939 | 0:bb21da73024a | 100 | SNMP_PDU_RESPONSE = ASN_BER_BASE_CONTEXT | ASN_BER_BASE_CONSTRUCTOR | 2, |
| okini3939 | 0:bb21da73024a | 101 | SNMP_PDU_SET = ASN_BER_BASE_CONTEXT | ASN_BER_BASE_CONSTRUCTOR | 3, |
| okini3939 | 0:bb21da73024a | 102 | SNMP_PDU_TRAP = ASN_BER_BASE_CONTEXT | ASN_BER_BASE_CONSTRUCTOR | 4 |
| okini3939 | 0:bb21da73024a | 103 | }; |
| okini3939 | 0:bb21da73024a | 104 | |
| okini3939 | 0:bb21da73024a | 105 | enum SNMP_TRAP_TYPES { |
| okini3939 | 0:bb21da73024a | 106 | // Trap generic types: |
| okini3939 | 0:bb21da73024a | 107 | SNMP_TRAP_COLD_START = 0, |
| okini3939 | 0:bb21da73024a | 108 | SNMP_TRAP_WARM_START = 1, |
| okini3939 | 0:bb21da73024a | 109 | SNMP_TRAP_LINK_DOWN = 2, |
| okini3939 | 0:bb21da73024a | 110 | SNMP_TRAP_LINK_UP = 3, |
| okini3939 | 0:bb21da73024a | 111 | SNMP_TRAP_AUTHENTICATION_FAIL = 4, |
| okini3939 | 0:bb21da73024a | 112 | SNMP_TRAP_EGP_NEIGHBORLOSS = 5, |
| okini3939 | 0:bb21da73024a | 113 | SNMP_TRAP_ENTERPRISE_SPECIFIC = 6 |
| okini3939 | 0:bb21da73024a | 114 | }; |
| okini3939 | 0:bb21da73024a | 115 | |
| okini3939 | 0:bb21da73024a | 116 | enum SNMP_ERR_CODES { |
| okini3939 | 0:bb21da73024a | 117 | SNMP_ERR_NO_ERROR = 0, |
| okini3939 | 0:bb21da73024a | 118 | SNMP_ERR_TOO_BIG = 1, |
| okini3939 | 0:bb21da73024a | 119 | SNMP_ERR_NO_SUCH_NAME = 2, |
| okini3939 | 0:bb21da73024a | 120 | SNMP_ERR_BAD_VALUE = 3, |
| okini3939 | 0:bb21da73024a | 121 | SNMP_ERR_READ_ONLY = 4, |
| okini3939 | 0:bb21da73024a | 122 | SNMP_ERR_GEN_ERROR = 5, |
| okini3939 | 0:bb21da73024a | 123 | |
| okini3939 | 0:bb21da73024a | 124 | SNMP_ERR_NO_ACCESS = 6, |
| okini3939 | 0:bb21da73024a | 125 | SNMP_ERR_WRONG_TYPE = 7, |
| okini3939 | 0:bb21da73024a | 126 | SNMP_ERR_WRONG_LENGTH = 8, |
| okini3939 | 0:bb21da73024a | 127 | SNMP_ERR_WRONG_ENCODING = 9, |
| okini3939 | 0:bb21da73024a | 128 | SNMP_ERR_WRONG_VALUE = 10, |
| okini3939 | 0:bb21da73024a | 129 | SNMP_ERR_NO_CREATION = 11, |
| okini3939 | 0:bb21da73024a | 130 | SNMP_ERR_INCONSISTANT_VALUE = 12, |
| okini3939 | 0:bb21da73024a | 131 | SNMP_ERR_RESOURCE_UNAVAILABLE = 13, |
| okini3939 | 0:bb21da73024a | 132 | SNMP_ERR_COMMIT_FAILED = 14, |
| okini3939 | 0:bb21da73024a | 133 | SNMP_ERR_UNDO_FAILED = 15, |
| okini3939 | 0:bb21da73024a | 134 | SNMP_ERR_AUTHORIZATION_ERROR = 16, |
| okini3939 | 0:bb21da73024a | 135 | SNMP_ERR_NOT_WRITABLE = 17, |
| okini3939 | 0:bb21da73024a | 136 | SNMP_ERR_INCONSISTEN_NAME = 18 |
| okini3939 | 0:bb21da73024a | 137 | }; |
| okini3939 | 0:bb21da73024a | 138 | |
| okini3939 | 0:bb21da73024a | 139 | enum SNMP_API_STAT_CODES { |
| okini3939 | 0:bb21da73024a | 140 | SNMP_API_STAT_SUCCESS = 0, |
| okini3939 | 0:bb21da73024a | 141 | SNMP_API_STAT_MALLOC_ERR = 1, |
| okini3939 | 0:bb21da73024a | 142 | SNMP_API_STAT_NAME_TOO_BIG = 2, |
| okini3939 | 0:bb21da73024a | 143 | SNMP_API_STAT_OID_TOO_BIG = 3, |
| okini3939 | 0:bb21da73024a | 144 | SNMP_API_STAT_VALUE_TOO_BIG = 4, |
| okini3939 | 0:bb21da73024a | 145 | SNMP_API_STAT_PACKET_INVALID = 5, |
| okini3939 | 0:bb21da73024a | 146 | SNMP_API_STAT_PACKET_TOO_BIG = 6 |
| okini3939 | 0:bb21da73024a | 147 | }; |
| okini3939 | 0:bb21da73024a | 148 | |
| okini3939 | 0:bb21da73024a | 149 | // |
| okini3939 | 0:bb21da73024a | 150 | // http://oreilly.com/catalog/esnmp/chapter/ch02.html Table 2-1: SMIv1 Datatypes |
| okini3939 | 0:bb21da73024a | 151 | |
| okini3939 | 0:bb21da73024a | 152 | enum SNMP_SYNTAXES { |
| okini3939 | 0:bb21da73024a | 153 | // SNMP ObjectSyntax values |
| okini3939 | 0:bb21da73024a | 154 | SNMP_SYNTAX_SEQUENCE = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_CONSTRUCTOR | 0x10, |
| okini3939 | 0:bb21da73024a | 155 | // These values are used in the "syntax" member of VALUEs |
| okini3939 | 0:bb21da73024a | 156 | SNMP_SYNTAX_BOOL = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 1, |
| okini3939 | 0:bb21da73024a | 157 | SNMP_SYNTAX_INT = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 2, |
| okini3939 | 0:bb21da73024a | 158 | SNMP_SYNTAX_BITS = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 3, |
| okini3939 | 0:bb21da73024a | 159 | SNMP_SYNTAX_OCTETS = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 4, |
| okini3939 | 0:bb21da73024a | 160 | SNMP_SYNTAX_NULL = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 5, |
| okini3939 | 0:bb21da73024a | 161 | SNMP_SYNTAX_OID = ASN_BER_BASE_UNIVERSAL | ASN_BER_BASE_PRIMITIVE | 6, |
| okini3939 | 0:bb21da73024a | 162 | SNMP_SYNTAX_INT32 = SNMP_SYNTAX_INT, |
| okini3939 | 0:bb21da73024a | 163 | SNMP_SYNTAX_IP_ADDRESS = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 0, |
| okini3939 | 0:bb21da73024a | 164 | SNMP_SYNTAX_COUNTER = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 1, |
| okini3939 | 0:bb21da73024a | 165 | SNMP_SYNTAX_GAUGE = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 2, |
| okini3939 | 0:bb21da73024a | 166 | SNMP_SYNTAX_TIME_TICKS = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 3, |
| okini3939 | 0:bb21da73024a | 167 | SNMP_SYNTAX_OPAQUE = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 4, |
| okini3939 | 0:bb21da73024a | 168 | SNMP_SYNTAX_NSAPADDR = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 5, |
| okini3939 | 0:bb21da73024a | 169 | SNMP_SYNTAX_COUNTER64 = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 6, |
| okini3939 | 0:bb21da73024a | 170 | SNMP_SYNTAX_UINT32 = ASN_BER_BASE_APPLICATION | ASN_BER_BASE_PRIMITIVE | 7, |
| okini3939 | 1:b2db0ea96703 | 171 | SNMP_SYNTAX_OPAQUE_FLOAT = 0x78, |
| okini3939 | 0:bb21da73024a | 172 | }; |
| okini3939 | 0:bb21da73024a | 173 | |
| okini3939 | 0:bb21da73024a | 174 | typedef struct SNMP_OID { |
| okini3939 | 0:bb21da73024a | 175 | byte data[SNMP_MAX_OID_LEN]; // ushort array insted?? |
| okini3939 | 0:bb21da73024a | 176 | size_t size; |
| okini3939 | 0:bb21da73024a | 177 | // |
| okini3939 | 0:bb21da73024a | 178 | void fromString(const char *buffer) { |
| okini3939 | 0:bb21da73024a | 179 | } |
| okini3939 | 0:bb21da73024a | 180 | // |
| okini3939 | 0:bb21da73024a | 181 | void toString(char *buffer) { |
| okini3939 | 0:bb21da73024a | 182 | buffer[0] = '1'; |
| okini3939 | 0:bb21da73024a | 183 | buffer[1] = '.'; |
| okini3939 | 0:bb21da73024a | 184 | buffer[2] = '3'; |
| okini3939 | 0:bb21da73024a | 185 | buffer[3] = '\0'; |
| okini3939 | 0:bb21da73024a | 186 | // |
| okini3939 | 0:bb21da73024a | 187 | // tmp buffer - short (Int16) |
| okini3939 | 0:bb21da73024a | 188 | //char *buff = (char *)malloc(sizeof(char)*16); // I ya ya keeps hanging the MCU |
| okini3939 | 0:bb21da73024a | 189 | char buff[16]; |
| okini3939 | 0:bb21da73024a | 190 | byte hsize = size - 1; |
| okini3939 | 0:bb21da73024a | 191 | byte hpos = 1; |
| okini3939 | 0:bb21da73024a | 192 | uint16_t subid; |
| okini3939 | 0:bb21da73024a | 193 | // |
| okini3939 | 0:bb21da73024a | 194 | while ( hsize > 0 ) { |
| okini3939 | 0:bb21da73024a | 195 | subid = 0; |
| okini3939 | 0:bb21da73024a | 196 | uint16_t b = 0; |
| okini3939 | 0:bb21da73024a | 197 | do { |
| okini3939 | 0:bb21da73024a | 198 | uint16_t next = data[hpos++]; |
| okini3939 | 0:bb21da73024a | 199 | b = next & 0xFF; |
| okini3939 | 0:bb21da73024a | 200 | subid = (subid << 7) + (b & ~0x80); |
| okini3939 | 0:bb21da73024a | 201 | hsize--; |
| okini3939 | 0:bb21da73024a | 202 | } while ( (hsize > 0) && ((b & 0x80) != 0) ); |
| okini3939 | 0:bb21da73024a | 203 | //utoa(subid, buff, 10); |
| okini3939 | 0:bb21da73024a | 204 | sprintf(buff, "%d", subid); |
| okini3939 | 0:bb21da73024a | 205 | strcat(buffer, "."); |
| okini3939 | 0:bb21da73024a | 206 | strcat(buffer, buff); |
| okini3939 | 0:bb21da73024a | 207 | } |
| okini3939 | 0:bb21da73024a | 208 | // |
| okini3939 | 0:bb21da73024a | 209 | // free buff |
| okini3939 | 0:bb21da73024a | 210 | //SNMP_FREE(buff); |
| okini3939 | 0:bb21da73024a | 211 | }; |
| okini3939 | 0:bb21da73024a | 212 | } SNMP_OID; |
| okini3939 | 0:bb21da73024a | 213 | |
| okini3939 | 0:bb21da73024a | 214 | // union for values? |
| okini3939 | 0:bb21da73024a | 215 | // |
| okini3939 | 0:bb21da73024a | 216 | typedef struct SNMP_VALUE { |
| okini3939 | 0:bb21da73024a | 217 | byte data[SNMP_MAX_VALUE_LEN]; |
| okini3939 | 0:bb21da73024a | 218 | size_t size; |
| okini3939 | 0:bb21da73024a | 219 | SNMP_SYNTAXES syntax; |
| okini3939 | 0:bb21da73024a | 220 | // |
| okini3939 | 0:bb21da73024a | 221 | byte i; // for encoding/decoding functions |
| okini3939 | 0:bb21da73024a | 222 | // |
| okini3939 | 0:bb21da73024a | 223 | // clear's buffer and sets size to 0 |
| okini3939 | 0:bb21da73024a | 224 | void clear(void) { |
| okini3939 | 0:bb21da73024a | 225 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 226 | size = 0; |
| okini3939 | 0:bb21da73024a | 227 | } |
| okini3939 | 0:bb21da73024a | 228 | // |
| okini3939 | 0:bb21da73024a | 229 | // |
| okini3939 | 0:bb21da73024a | 230 | // ASN.1 decoding functions |
| okini3939 | 0:bb21da73024a | 231 | // |
| okini3939 | 0:bb21da73024a | 232 | // decode's an octet string, object-identifier, opaque syntax to string |
| okini3939 | 0:bb21da73024a | 233 | SNMP_ERR_CODES decode(char *value, size_t max_size) { |
| okini3939 | 0:bb21da73024a | 234 | if ( syntax == SNMP_SYNTAX_OCTETS || syntax == SNMP_SYNTAX_OID |
| okini3939 | 0:bb21da73024a | 235 | || syntax == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 236 | if ( strlen(value) - 1 < max_size ) { |
| okini3939 | 0:bb21da73024a | 237 | if ( syntax == SNMP_SYNTAX_OID ) { |
| okini3939 | 0:bb21da73024a | 238 | value[0] = '1'; |
| okini3939 | 0:bb21da73024a | 239 | value[1] = '.'; |
| okini3939 | 0:bb21da73024a | 240 | value[2] = '3'; |
| okini3939 | 0:bb21da73024a | 241 | value[3] = '\0'; |
| okini3939 | 0:bb21da73024a | 242 | // |
| okini3939 | 0:bb21da73024a | 243 | // tmp buffer - ushort (UInt16) |
| okini3939 | 0:bb21da73024a | 244 | //char *buff = (char *)malloc(sizeof(char)*16); // I ya ya..keep hanging the MCU |
| okini3939 | 0:bb21da73024a | 245 | char buff[16]; |
| okini3939 | 0:bb21da73024a | 246 | byte hsize = size - 1; |
| okini3939 | 0:bb21da73024a | 247 | byte hpos = 1; |
| okini3939 | 0:bb21da73024a | 248 | uint16_t subid; |
| okini3939 | 0:bb21da73024a | 249 | // |
| okini3939 | 0:bb21da73024a | 250 | while ( hsize > 0 ) { |
| okini3939 | 0:bb21da73024a | 251 | subid = 0; |
| okini3939 | 0:bb21da73024a | 252 | uint16_t b = 0; |
| okini3939 | 0:bb21da73024a | 253 | do { |
| okini3939 | 0:bb21da73024a | 254 | uint16_t next = data[hpos++]; |
| okini3939 | 0:bb21da73024a | 255 | b = next & 0xFF; |
| okini3939 | 0:bb21da73024a | 256 | subid = (subid << 7) + (b & ~0x80); |
| okini3939 | 0:bb21da73024a | 257 | hsize--; |
| okini3939 | 0:bb21da73024a | 258 | } while ( (hsize > 0) && ((b & 0x80) != 0) ); |
| okini3939 | 0:bb21da73024a | 259 | //utoa(subid, buff, 10); |
| okini3939 | 0:bb21da73024a | 260 | sprintf(buff, "%d", subid); |
| okini3939 | 0:bb21da73024a | 261 | strcat(value, "."); |
| okini3939 | 0:bb21da73024a | 262 | strcat(value, buff); |
| okini3939 | 0:bb21da73024a | 263 | } |
| okini3939 | 0:bb21da73024a | 264 | // |
| okini3939 | 0:bb21da73024a | 265 | // free buff |
| okini3939 | 0:bb21da73024a | 266 | //SNMP_FREE(buff); |
| okini3939 | 0:bb21da73024a | 267 | } else { |
| okini3939 | 0:bb21da73024a | 268 | for ( i = 0; i < size; i++ ) { |
| okini3939 | 0:bb21da73024a | 269 | value[i] = (char)data[i]; |
| okini3939 | 0:bb21da73024a | 270 | } |
| okini3939 | 0:bb21da73024a | 271 | value[size] = '\0'; |
| okini3939 | 0:bb21da73024a | 272 | } |
| okini3939 | 0:bb21da73024a | 273 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 274 | } else { |
| okini3939 | 0:bb21da73024a | 275 | clear(); |
| okini3939 | 0:bb21da73024a | 276 | return SNMP_ERR_TOO_BIG; |
| okini3939 | 0:bb21da73024a | 277 | } |
| okini3939 | 0:bb21da73024a | 278 | } else { |
| okini3939 | 0:bb21da73024a | 279 | clear(); |
| okini3939 | 0:bb21da73024a | 280 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 281 | } |
| okini3939 | 0:bb21da73024a | 282 | } |
| okini3939 | 0:bb21da73024a | 283 | // |
| okini3939 | 0:bb21da73024a | 284 | // decode's an int syntax to int16 ?? is this applicable |
| okini3939 | 0:bb21da73024a | 285 | SNMP_ERR_CODES decode(int16_t *value) { |
| okini3939 | 0:bb21da73024a | 286 | if ( syntax == SNMP_SYNTAX_INT ) { |
| okini3939 | 0:bb21da73024a | 287 | int16_u tmp; |
| okini3939 | 0:bb21da73024a | 288 | tmp.data[1] = data[0]; |
| okini3939 | 0:bb21da73024a | 289 | tmp.data[0] = data[1]; |
| okini3939 | 0:bb21da73024a | 290 | *value = tmp.int16; |
| okini3939 | 0:bb21da73024a | 291 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 292 | } else { |
| okini3939 | 0:bb21da73024a | 293 | clear(); |
| okini3939 | 0:bb21da73024a | 294 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 295 | } |
| okini3939 | 0:bb21da73024a | 296 | } |
| okini3939 | 0:bb21da73024a | 297 | // |
| okini3939 | 0:bb21da73024a | 298 | // decode's an int32 syntax to int32 |
| okini3939 | 0:bb21da73024a | 299 | SNMP_ERR_CODES decode(int32_t *value) { |
| okini3939 | 0:bb21da73024a | 300 | if ( syntax == SNMP_SYNTAX_INT32 ) { |
| okini3939 | 0:bb21da73024a | 301 | int32_u tmp; |
| okini3939 | 0:bb21da73024a | 302 | tmp.data[3] = data[0]; |
| okini3939 | 0:bb21da73024a | 303 | tmp.data[2] = data[1]; |
| okini3939 | 0:bb21da73024a | 304 | tmp.data[1] = data[2]; |
| okini3939 | 0:bb21da73024a | 305 | tmp.data[0] = data[3]; |
| okini3939 | 0:bb21da73024a | 306 | *value = tmp.int32; |
| okini3939 | 0:bb21da73024a | 307 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 308 | } else { |
| okini3939 | 0:bb21da73024a | 309 | clear(); |
| okini3939 | 0:bb21da73024a | 310 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 311 | } |
| okini3939 | 0:bb21da73024a | 312 | } |
| okini3939 | 0:bb21da73024a | 313 | // |
| okini3939 | 0:bb21da73024a | 314 | // decode's an uint32, counter, time-ticks, gauge syntax to uint32 |
| okini3939 | 0:bb21da73024a | 315 | SNMP_ERR_CODES decode(uint32_t *value) { |
| okini3939 | 0:bb21da73024a | 316 | if ( syntax == SNMP_SYNTAX_COUNTER || syntax == SNMP_SYNTAX_TIME_TICKS |
| okini3939 | 0:bb21da73024a | 317 | || syntax == SNMP_SYNTAX_GAUGE || syntax == SNMP_SYNTAX_UINT32 ) { |
| okini3939 | 0:bb21da73024a | 318 | uint32_u tmp; |
| okini3939 | 0:bb21da73024a | 319 | tmp.data[3] = data[0]; |
| okini3939 | 0:bb21da73024a | 320 | tmp.data[2] = data[1]; |
| okini3939 | 0:bb21da73024a | 321 | tmp.data[1] = data[2]; |
| okini3939 | 0:bb21da73024a | 322 | tmp.data[0] = data[3]; |
| okini3939 | 0:bb21da73024a | 323 | *value = tmp.uint32; |
| okini3939 | 0:bb21da73024a | 324 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 325 | } else { |
| okini3939 | 0:bb21da73024a | 326 | clear(); |
| okini3939 | 0:bb21da73024a | 327 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 328 | } |
| okini3939 | 0:bb21da73024a | 329 | } |
| okini3939 | 0:bb21da73024a | 330 | // |
| okini3939 | 0:bb21da73024a | 331 | // decode's an ip-address, NSAP-address syntax to an ip-address byte array |
| okini3939 | 0:bb21da73024a | 332 | SNMP_ERR_CODES decode(byte *value) { |
| okini3939 | 0:bb21da73024a | 333 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 334 | if ( syntax == SNMP_SYNTAX_IP_ADDRESS || syntax == SNMP_SYNTAX_NSAPADDR ) { |
| okini3939 | 0:bb21da73024a | 335 | if ( sizeof(value) > 4 ) { |
| okini3939 | 0:bb21da73024a | 336 | clear(); |
| okini3939 | 0:bb21da73024a | 337 | return SNMP_ERR_TOO_BIG; |
| okini3939 | 0:bb21da73024a | 338 | } else { |
| okini3939 | 0:bb21da73024a | 339 | size = 4; |
| okini3939 | 0:bb21da73024a | 340 | data[0] = value[3]; |
| okini3939 | 0:bb21da73024a | 341 | data[1] = value[2]; |
| okini3939 | 0:bb21da73024a | 342 | data[2] = value[1]; |
| okini3939 | 0:bb21da73024a | 343 | data[3] = value[0]; |
| okini3939 | 0:bb21da73024a | 344 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 345 | } |
| okini3939 | 0:bb21da73024a | 346 | } else { |
| okini3939 | 0:bb21da73024a | 347 | clear(); |
| okini3939 | 0:bb21da73024a | 348 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 349 | } |
| okini3939 | 0:bb21da73024a | 350 | } |
| okini3939 | 0:bb21da73024a | 351 | // |
| okini3939 | 0:bb21da73024a | 352 | // decode's a boolean syntax to boolean |
| okini3939 | 0:bb21da73024a | 353 | SNMP_ERR_CODES decode(bool *value) { |
| okini3939 | 0:bb21da73024a | 354 | if ( syntax == SNMP_SYNTAX_BOOL ) { |
| okini3939 | 0:bb21da73024a | 355 | *value = (data[0] != 0); |
| okini3939 | 0:bb21da73024a | 356 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 357 | } else { |
| okini3939 | 0:bb21da73024a | 358 | clear(); |
| okini3939 | 0:bb21da73024a | 359 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 360 | } |
| okini3939 | 0:bb21da73024a | 361 | } |
| okini3939 | 0:bb21da73024a | 362 | // |
| okini3939 | 0:bb21da73024a | 363 | // |
| okini3939 | 0:bb21da73024a | 364 | // ASN.1 encoding functions |
| okini3939 | 0:bb21da73024a | 365 | // |
| okini3939 | 0:bb21da73024a | 366 | // encode's a octet string to a string, opaque syntax |
| okini3939 | 0:bb21da73024a | 367 | // encode object-identifier here?? |
| okini3939 | 0:bb21da73024a | 368 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const char *value) { |
| okini3939 | 0:bb21da73024a | 369 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 370 | if ( syn == SNMP_SYNTAX_OCTETS || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 371 | if ( strlen(value) - 1 < SNMP_MAX_VALUE_LEN ) { |
| okini3939 | 0:bb21da73024a | 372 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 373 | size = strlen(value); |
| okini3939 | 0:bb21da73024a | 374 | for ( i = 0; i < size; i++ ) { |
| okini3939 | 0:bb21da73024a | 375 | data[i] = (byte)value[i]; |
| okini3939 | 0:bb21da73024a | 376 | } |
| okini3939 | 0:bb21da73024a | 377 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 378 | } else { |
| okini3939 | 0:bb21da73024a | 379 | clear(); |
| okini3939 | 0:bb21da73024a | 380 | return SNMP_ERR_TOO_BIG; |
| okini3939 | 0:bb21da73024a | 381 | } |
| okini3939 | 0:bb21da73024a | 382 | } else { |
| okini3939 | 0:bb21da73024a | 383 | clear(); |
| okini3939 | 0:bb21da73024a | 384 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 385 | } |
| okini3939 | 0:bb21da73024a | 386 | } |
| okini3939 | 0:bb21da73024a | 387 | // |
| okini3939 | 0:bb21da73024a | 388 | // encode's an int16 to int, opaque syntax |
| okini3939 | 0:bb21da73024a | 389 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const int16_t value) { |
| okini3939 | 0:bb21da73024a | 390 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 391 | if ( syn == SNMP_SYNTAX_INT || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 392 | int16_u tmp; |
| okini3939 | 0:bb21da73024a | 393 | size = 2; |
| okini3939 | 0:bb21da73024a | 394 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 395 | tmp.int16 = value; |
| okini3939 | 0:bb21da73024a | 396 | data[0] = tmp.data[1]; |
| okini3939 | 0:bb21da73024a | 397 | data[1] = tmp.data[0]; |
| okini3939 | 0:bb21da73024a | 398 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 399 | } else { |
| okini3939 | 0:bb21da73024a | 400 | clear(); |
| okini3939 | 0:bb21da73024a | 401 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 402 | } |
| okini3939 | 0:bb21da73024a | 403 | } |
| okini3939 | 0:bb21da73024a | 404 | // |
| okini3939 | 0:bb21da73024a | 405 | // encode's an int32 to int32, opaque syntax |
| okini3939 | 0:bb21da73024a | 406 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const int32_t value) { |
| okini3939 | 0:bb21da73024a | 407 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 408 | if ( syn == SNMP_SYNTAX_INT32 || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 409 | int32_u tmp; |
| okini3939 | 0:bb21da73024a | 410 | size = 4; |
| okini3939 | 0:bb21da73024a | 411 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 412 | tmp.int32 = value; |
| okini3939 | 0:bb21da73024a | 413 | data[0] = tmp.data[3]; |
| okini3939 | 0:bb21da73024a | 414 | data[1] = tmp.data[2]; |
| okini3939 | 0:bb21da73024a | 415 | data[2] = tmp.data[1]; |
| okini3939 | 0:bb21da73024a | 416 | data[3] = tmp.data[0]; |
| okini3939 | 0:bb21da73024a | 417 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 418 | } else { |
| okini3939 | 0:bb21da73024a | 419 | clear(); |
| okini3939 | 0:bb21da73024a | 420 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 421 | } |
| okini3939 | 0:bb21da73024a | 422 | } |
| okini3939 | 0:bb21da73024a | 423 | // |
| okini3939 | 0:bb21da73024a | 424 | // encode's an uint32 to uint32, counter, time-ticks, gauge, opaque syntax |
| okini3939 | 0:bb21da73024a | 425 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const uint32_t value) { |
| okini3939 | 0:bb21da73024a | 426 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 427 | if ( syn == SNMP_SYNTAX_COUNTER || syn == SNMP_SYNTAX_TIME_TICKS |
| okini3939 | 0:bb21da73024a | 428 | || syn == SNMP_SYNTAX_GAUGE || syn == SNMP_SYNTAX_UINT32 |
| okini3939 | 0:bb21da73024a | 429 | || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 430 | uint32_u tmp; |
| okini3939 | 0:bb21da73024a | 431 | size = 4; |
| okini3939 | 0:bb21da73024a | 432 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 433 | tmp.uint32 = value; |
| okini3939 | 0:bb21da73024a | 434 | data[0] = tmp.data[3]; |
| okini3939 | 0:bb21da73024a | 435 | data[1] = tmp.data[2]; |
| okini3939 | 0:bb21da73024a | 436 | data[2] = tmp.data[1]; |
| okini3939 | 0:bb21da73024a | 437 | data[3] = tmp.data[0]; |
| okini3939 | 0:bb21da73024a | 438 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 439 | } else { |
| okini3939 | 0:bb21da73024a | 440 | clear(); |
| okini3939 | 0:bb21da73024a | 441 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 442 | } |
| okini3939 | 0:bb21da73024a | 443 | } |
| okini3939 | 0:bb21da73024a | 444 | // |
| okini3939 | 0:bb21da73024a | 445 | // encode's an ip-address byte array to ip-address, NSAP-address, opaque syntax |
| okini3939 | 0:bb21da73024a | 446 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const byte *value) { |
| okini3939 | 0:bb21da73024a | 447 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 448 | if ( syn == SNMP_SYNTAX_IP_ADDRESS || syn == SNMP_SYNTAX_NSAPADDR |
| okini3939 | 0:bb21da73024a | 449 | || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 450 | if ( sizeof(value) > 4 ) { |
| okini3939 | 0:bb21da73024a | 451 | clear(); |
| okini3939 | 0:bb21da73024a | 452 | return SNMP_ERR_TOO_BIG; |
| okini3939 | 0:bb21da73024a | 453 | } else { |
| okini3939 | 0:bb21da73024a | 454 | size = 4; |
| okini3939 | 0:bb21da73024a | 455 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 456 | data[0] = value[3]; |
| okini3939 | 0:bb21da73024a | 457 | data[1] = value[2]; |
| okini3939 | 0:bb21da73024a | 458 | data[2] = value[1]; |
| okini3939 | 0:bb21da73024a | 459 | data[3] = value[0]; |
| okini3939 | 0:bb21da73024a | 460 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 461 | } |
| okini3939 | 0:bb21da73024a | 462 | } else { |
| okini3939 | 0:bb21da73024a | 463 | clear(); |
| okini3939 | 0:bb21da73024a | 464 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 465 | } |
| okini3939 | 0:bb21da73024a | 466 | } |
| okini3939 | 0:bb21da73024a | 467 | // |
| okini3939 | 0:bb21da73024a | 468 | // encode's a boolean to boolean, opaque syntax |
| okini3939 | 0:bb21da73024a | 469 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const bool value) { |
| okini3939 | 0:bb21da73024a | 470 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 471 | if ( syn == SNMP_SYNTAX_BOOL || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 472 | size = 1; |
| okini3939 | 0:bb21da73024a | 473 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 474 | data[0] = value ? 0xff : 0; |
| okini3939 | 0:bb21da73024a | 475 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 476 | } else { |
| okini3939 | 0:bb21da73024a | 477 | clear(); |
| okini3939 | 0:bb21da73024a | 478 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 479 | } |
| okini3939 | 0:bb21da73024a | 480 | } |
| okini3939 | 0:bb21da73024a | 481 | // |
| okini3939 | 0:bb21da73024a | 482 | // encode's an uint64 to counter64, opaque syntax |
| okini3939 | 0:bb21da73024a | 483 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const uint64_t value) { |
| okini3939 | 0:bb21da73024a | 484 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 0:bb21da73024a | 485 | if ( syn == SNMP_SYNTAX_COUNTER64 || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 486 | uint64_u tmp; |
| okini3939 | 0:bb21da73024a | 487 | size = 8; |
| okini3939 | 0:bb21da73024a | 488 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 489 | tmp.uint64 = value; |
| okini3939 | 0:bb21da73024a | 490 | data[0] = tmp.data[7]; |
| okini3939 | 0:bb21da73024a | 491 | data[1] = tmp.data[6]; |
| okini3939 | 0:bb21da73024a | 492 | data[2] = tmp.data[5]; |
| okini3939 | 0:bb21da73024a | 493 | data[3] = tmp.data[4]; |
| okini3939 | 0:bb21da73024a | 494 | data[4] = tmp.data[3]; |
| okini3939 | 0:bb21da73024a | 495 | data[5] = tmp.data[2]; |
| okini3939 | 0:bb21da73024a | 496 | data[6] = tmp.data[1]; |
| okini3939 | 0:bb21da73024a | 497 | data[7] = tmp.data[0]; |
| okini3939 | 0:bb21da73024a | 498 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 499 | } else { |
| okini3939 | 0:bb21da73024a | 500 | clear(); |
| okini3939 | 0:bb21da73024a | 501 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 502 | } |
| okini3939 | 0:bb21da73024a | 503 | } |
| okini3939 | 0:bb21da73024a | 504 | // |
| okini3939 | 1:b2db0ea96703 | 505 | // encode's an int32 to int32, opaque syntax |
| okini3939 | 1:b2db0ea96703 | 506 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn, const float value) { |
| okini3939 | 1:b2db0ea96703 | 507 | memset(data, 0, SNMP_MAX_VALUE_LEN); |
| okini3939 | 1:b2db0ea96703 | 508 | if ( syn == SNMP_SYNTAX_OPAQUE_FLOAT ) { |
| okini3939 | 1:b2db0ea96703 | 509 | float_u tmp; |
| okini3939 | 1:b2db0ea96703 | 510 | size = 4; |
| okini3939 | 1:b2db0ea96703 | 511 | syntax = syn; |
| okini3939 | 1:b2db0ea96703 | 512 | tmp.float_t = value; |
| okini3939 | 1:b2db0ea96703 | 513 | data[0] = tmp.data[3]; |
| okini3939 | 1:b2db0ea96703 | 514 | data[1] = tmp.data[2]; |
| okini3939 | 1:b2db0ea96703 | 515 | data[2] = tmp.data[1]; |
| okini3939 | 1:b2db0ea96703 | 516 | data[3] = tmp.data[0]; |
| okini3939 | 1:b2db0ea96703 | 517 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 1:b2db0ea96703 | 518 | } else { |
| okini3939 | 1:b2db0ea96703 | 519 | clear(); |
| okini3939 | 1:b2db0ea96703 | 520 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 1:b2db0ea96703 | 521 | } |
| okini3939 | 1:b2db0ea96703 | 522 | } |
| okini3939 | 1:b2db0ea96703 | 523 | // |
| okini3939 | 0:bb21da73024a | 524 | // encode's a null to null, opaque syntax |
| okini3939 | 0:bb21da73024a | 525 | SNMP_ERR_CODES encode(SNMP_SYNTAXES syn) { |
| okini3939 | 0:bb21da73024a | 526 | clear(); |
| okini3939 | 0:bb21da73024a | 527 | if ( syn == SNMP_SYNTAX_NULL || syn == SNMP_SYNTAX_OPAQUE ) { |
| okini3939 | 0:bb21da73024a | 528 | size = 0; |
| okini3939 | 0:bb21da73024a | 529 | syntax = syn; |
| okini3939 | 0:bb21da73024a | 530 | return SNMP_ERR_NO_ERROR; |
| okini3939 | 0:bb21da73024a | 531 | } else { |
| okini3939 | 0:bb21da73024a | 532 | return SNMP_ERR_WRONG_TYPE; |
| okini3939 | 0:bb21da73024a | 533 | } |
| okini3939 | 0:bb21da73024a | 534 | } |
| okini3939 | 0:bb21da73024a | 535 | } SNMP_VALUE; |
| okini3939 | 0:bb21da73024a | 536 | |
| okini3939 | 0:bb21da73024a | 537 | typedef struct SNMP_PDU { |
| okini3939 | 0:bb21da73024a | 538 | SNMP_PDU_TYPES type; |
| okini3939 | 0:bb21da73024a | 539 | int32_t version; |
| okini3939 | 0:bb21da73024a | 540 | int32_t requestId; |
| okini3939 | 0:bb21da73024a | 541 | SNMP_ERR_CODES error; |
| okini3939 | 0:bb21da73024a | 542 | int32_t errorIndex; |
| okini3939 | 0:bb21da73024a | 543 | SNMP_OID OID; |
| okini3939 | 0:bb21da73024a | 544 | SNMP_VALUE VALUE; |
| okini3939 | 0:bb21da73024a | 545 | } SNMP_PDU; |
| okini3939 | 0:bb21da73024a | 546 | |
| okini3939 | 0:bb21da73024a | 547 | class AgentbedClass { |
| okini3939 | 0:bb21da73024a | 548 | public: |
| okini3939 | 0:bb21da73024a | 549 | // Agent functions |
| okini3939 | 0:bb21da73024a | 550 | SNMP_API_STAT_CODES begin(EthernetNetIf *eth); |
| okini3939 | 0:bb21da73024a | 551 | SNMP_API_STAT_CODES begin(char *getCommName, char *setCommName, uint16_t port, EthernetNetIf *eth); |
| okini3939 | 0:bb21da73024a | 552 | void listen(UDPSocketEvent); |
| okini3939 | 0:bb21da73024a | 553 | SNMP_API_STAT_CODES requestPdu(SNMP_PDU *pdu); |
| okini3939 | 0:bb21da73024a | 554 | SNMP_API_STAT_CODES responsePdu(SNMP_PDU *pdu); |
| okini3939 | 0:bb21da73024a | 555 | void onPduReceive(onPduReceiveCallback pduReceived); |
| okini3939 | 0:bb21da73024a | 556 | void freePdu(SNMP_PDU *pdu); |
| okini3939 | 0:bb21da73024a | 557 | |
| okini3939 | 0:bb21da73024a | 558 | // Helper functions |
| okini3939 | 0:bb21da73024a | 559 | |
| okini3939 | 0:bb21da73024a | 560 | private: |
| okini3939 | 0:bb21da73024a | 561 | byte _packet[SNMP_MAX_PACKET_LEN]; |
| okini3939 | 0:bb21da73024a | 562 | uint16_t _packetSize; |
| okini3939 | 0:bb21da73024a | 563 | uint16_t _packetPos; |
| okini3939 | 0:bb21da73024a | 564 | SNMP_PDU_TYPES _dstType; |
| okini3939 | 0:bb21da73024a | 565 | char *_getCommName; |
| okini3939 | 0:bb21da73024a | 566 | size_t _getSize; |
| okini3939 | 0:bb21da73024a | 567 | char *_setCommName; |
| okini3939 | 0:bb21da73024a | 568 | size_t _setSize; |
| okini3939 | 0:bb21da73024a | 569 | onPduReceiveCallback _callback; |
| okini3939 | 0:bb21da73024a | 570 | UDPSocket *udpsock; |
| okini3939 | 0:bb21da73024a | 571 | Host _dst; |
| okini3939 | 0:bb21da73024a | 572 | }; |
| okini3939 | 0:bb21da73024a | 573 | |
| okini3939 | 0:bb21da73024a | 574 | //extern AgentbedClass Agentbed; |
| okini3939 | 0:bb21da73024a | 575 | |
| okini3939 | 0:bb21da73024a | 576 | #endif |