Steven Blair / Mbed 2 deprecated rapid61850-SV-LE

An mbed implementation of IEC 61850-9-2LE Sample Values. Creating using the rapid61850 library, available at: https://github.com/stevenblair/rapid61850.

Dependencies:   mbed

An mbed implementation of IEC 61850-9-2LE Sample Values. Creating using the rapid61850 library, available at: https://github.com/stevenblair/rapid61850.

rapid61850/gseEncodePacket.c@0:f09b7bb8bcce, 2012-10-02 (annotated)

Committer:
sblair
Date:
Tue Oct 02 21:31:05 2012 +0000
Revision:
0:f09b7bb8bcce
converted library to folder

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sblair 0:f09b7bb8bcce 1 /**
sblair 0:f09b7bb8bcce 2 * Rapid-prototyping protection schemes with IEC 61850
sblair 0:f09b7bb8bcce 3 *
sblair 0:f09b7bb8bcce 4 * Copyright (c) 2012 Steven Blair
sblair 0:f09b7bb8bcce 5 *
sblair 0:f09b7bb8bcce 6 * This program is free software; you can redistribute it and/or
sblair 0:f09b7bb8bcce 7 * modify it under the terms of the GNU General Public License
sblair 0:f09b7bb8bcce 8 * as published by the Free Software Foundation; either version 2
sblair 0:f09b7bb8bcce 9 * of the License, or (at your option) any later version.
sblair 0:f09b7bb8bcce 10
sblair 0:f09b7bb8bcce 11 * This program is distributed in the hope that it will be useful,
sblair 0:f09b7bb8bcce 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
sblair 0:f09b7bb8bcce 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
sblair 0:f09b7bb8bcce 14 * GNU General Public License for more details.
sblair 0:f09b7bb8bcce 15
sblair 0:f09b7bb8bcce 16 * You should have received a copy of the GNU General Public License
sblair 0:f09b7bb8bcce 17 * along with this program; if not, write to the Free Software
sblair 0:f09b7bb8bcce 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
sblair 0:f09b7bb8bcce 19 */
sblair 0:f09b7bb8bcce 20
sblair 0:f09b7bb8bcce 21 #include "encodePacket.h"
sblair 0:f09b7bb8bcce 22 #include "gsePacketData.h"
sblair 0:f09b7bb8bcce 23 #include "gseEncode.h"
sblair 0:f09b7bb8bcce 24 #include "svEncode.h"
sblair 0:f09b7bb8bcce 25
sblair 0:f09b7bb8bcce 26 int getGseHeaderLength(struct gseControl *gseControl) {
sblair 0:f09b7bb8bcce 27 int size = 0;
sblair 0:f09b7bb8bcce 28 int len = 0;
sblair 0:f09b7bb8bcce 29
sblair 0:f09b7bb8bcce 30 size = strlen((const char *) gseControl->gocbRef);
sblair 0:f09b7bb8bcce 31 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 32
sblair 0:f09b7bb8bcce 33 size = BER_GET_LENGTH_CTYPE_INT32U(&gseControl->timeAllowedToLive);
sblair 0:f09b7bb8bcce 34 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 35
sblair 0:f09b7bb8bcce 36 size = strlen((const char *) gseControl->datSet);
sblair 0:f09b7bb8bcce 37 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 38
sblair 0:f09b7bb8bcce 39 size = strlen((const char *) gseControl->goID);
sblair 0:f09b7bb8bcce 40 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 41
sblair 0:f09b7bb8bcce 42 size = BER_GET_LENGTH_CTYPE_TIMESTAMP(&gseControl->t);
sblair 0:f09b7bb8bcce 43 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 44
sblair 0:f09b7bb8bcce 45 size = BER_GET_LENGTH_CTYPE_INT32U(&gseControl->stNum);
sblair 0:f09b7bb8bcce 46 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 47
sblair 0:f09b7bb8bcce 48 size = BER_GET_LENGTH_CTYPE_INT32U(&gseControl->sqNum);
sblair 0:f09b7bb8bcce 49 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 50
sblair 0:f09b7bb8bcce 51 size = BER_GET_LENGTH_CTYPE_BOOLEAN(&gseControl->test);
sblair 0:f09b7bb8bcce 52 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 53
sblair 0:f09b7bb8bcce 54 size = BER_GET_LENGTH_CTYPE_INT32U(&gseControl->confRev);
sblair 0:f09b7bb8bcce 55 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 56
sblair 0:f09b7bb8bcce 57 size = BER_GET_LENGTH_CTYPE_BOOLEAN(&gseControl->ndsCom);
sblair 0:f09b7bb8bcce 58 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 59
sblair 0:f09b7bb8bcce 60 size = BER_GET_LENGTH_CTYPE_INT32U(&gseControl->numDatSetEntries);
sblair 0:f09b7bb8bcce 61 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 62
sblair 0:f09b7bb8bcce 63 size = (gseControl->getDatasetLength)();
sblair 0:f09b7bb8bcce 64 len += size + getLengthBytes(size) + 1;
sblair 0:f09b7bb8bcce 65
sblair 0:f09b7bb8bcce 66 return len;
sblair 0:f09b7bb8bcce 67 }
sblair 0:f09b7bb8bcce 68
sblair 0:f09b7bb8bcce 69 // creates a GSE packet, including frame header. returns 0 on fail; number of bytes on success
sblair 0:f09b7bb8bcce 70 int gseEncodePacket(struct gseControl *gseControl, unsigned char *buf) {
sblair 0:f09b7bb8bcce 71 int offset = 0;
sblair 0:f09b7bb8bcce 72 int size = 0;
sblair 0:f09b7bb8bcce 73 int ADPULength = getGseHeaderLength(gseControl);
sblair 0:f09b7bb8bcce 74 int len = ADPULength + 9 + getLengthBytes(ADPULength); // APDU tag size (1 byte), plus 8 "header" bytes
sblair 0:f09b7bb8bcce 75
sblair 0:f09b7bb8bcce 76 //printf("ADPULength: %i, len: %i\n", ADPULength, len);
sblair 0:f09b7bb8bcce 77
sblair 0:f09b7bb8bcce 78 // frame header
sblair 0:f09b7bb8bcce 79 memcpy(&buf[offset], gseControl->ethHeaderData.destMACAddress, 6); // destination MAC addresses
sblair 0:f09b7bb8bcce 80 offset += 6;
sblair 0:f09b7bb8bcce 81 memcpy(&buf[offset], LOCAL_MAC_ADDRESS, 6); // source MAC addresses
sblair 0:f09b7bb8bcce 82 offset += 6;
sblair 0:f09b7bb8bcce 83
sblair 0:f09b7bb8bcce 84 buf[offset++] = 0x81; // TPID
sblair 0:f09b7bb8bcce 85 buf[offset++] = 0x00;
sblair 0:f09b7bb8bcce 86
sblair 0:f09b7bb8bcce 87 netmemcpy(&buf[offset], &gseControl->ethHeaderData.VLAN_ID, 2); // TCI
sblair 0:f09b7bb8bcce 88 buf[offset] |= (gseControl->ethHeaderData.VLAN_PRIORITY << 5);
sblair 0:f09b7bb8bcce 89 offset += 2;
sblair 0:f09b7bb8bcce 90
sblair 0:f09b7bb8bcce 91 buf[offset++] = 0x88; // EtherType
sblair 0:f09b7bb8bcce 92 buf[offset++] = 0xB8;
sblair 0:f09b7bb8bcce 93
sblair 0:f09b7bb8bcce 94 netmemcpy(&buf[offset], &gseControl->ethHeaderData.APPID, 2); // APPID
sblair 0:f09b7bb8bcce 95 offset += 2;
sblair 0:f09b7bb8bcce 96
sblair 0:f09b7bb8bcce 97 netmemcpy(&buf[offset], &len, 2); // length
sblair 0:f09b7bb8bcce 98 offset += 2;
sblair 0:f09b7bb8bcce 99
sblair 0:f09b7bb8bcce 100 buf[offset++] = 0x00; // reserved 1
sblair 0:f09b7bb8bcce 101 buf[offset++] = 0x00;
sblair 0:f09b7bb8bcce 102 buf[offset++] = 0x00; // reserved 2
sblair 0:f09b7bb8bcce 103 buf[offset++] = 0x00;
sblair 0:f09b7bb8bcce 104
sblair 0:f09b7bb8bcce 105 buf[offset++] = ASN1_TAG_SEQUENCE;
sblair 0:f09b7bb8bcce 106 offset += encodeLength(&buf[offset], ADPULength /*+ getLengthBytes(ADPULength) + 1*/);
sblair 0:f09b7bb8bcce 107
sblair 0:f09b7bb8bcce 108 buf[offset++] = GSE_TAG_GOCBREF;
sblair 0:f09b7bb8bcce 109 size = strlen((const char *) gseControl->gocbRef);
sblair 0:f09b7bb8bcce 110 buf[offset++] = size;
sblair 0:f09b7bb8bcce 111 memcpy(&buf[offset], gseControl->gocbRef, size);
sblair 0:f09b7bb8bcce 112 offset += size;
sblair 0:f09b7bb8bcce 113
sblair 0:f09b7bb8bcce 114 buf[offset++] = GSE_TAG_TIME_ALLOWED_TO_LIVE;
sblair 0:f09b7bb8bcce 115 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_INT32U(&gseControl->timeAllowedToLive));
sblair 0:f09b7bb8bcce 116 #if GOOSE_FIXED_SIZE == 1
sblair 0:f09b7bb8bcce 117 offset += ber_encode_integer_fixed_size(&buf[offset], &gseControl->timeAllowedToLive, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 118 #else
sblair 0:f09b7bb8bcce 119 offset += ber_encode_integer(&buf[offset], &gseControl->timeAllowedToLive, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 120 #endif
sblair 0:f09b7bb8bcce 121
sblair 0:f09b7bb8bcce 122 buf[offset++] = GSE_TAG_DATSET;
sblair 0:f09b7bb8bcce 123 size = strlen((const char *) gseControl->datSet);
sblair 0:f09b7bb8bcce 124 buf[offset++] = size;
sblair 0:f09b7bb8bcce 125 memcpy(&buf[offset], gseControl->datSet, size);
sblair 0:f09b7bb8bcce 126 offset += size;
sblair 0:f09b7bb8bcce 127
sblair 0:f09b7bb8bcce 128 buf[offset++] = GSE_TAG_GOID;
sblair 0:f09b7bb8bcce 129 size = strlen((const char *) gseControl->goID);
sblair 0:f09b7bb8bcce 130 buf[offset++] = size;
sblair 0:f09b7bb8bcce 131 memcpy(&buf[offset], gseControl->goID, size);
sblair 0:f09b7bb8bcce 132 offset += size;
sblair 0:f09b7bb8bcce 133
sblair 0:f09b7bb8bcce 134 buf[offset++] = GSE_TAG_T;
sblair 0:f09b7bb8bcce 135 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_TIMESTAMP(&gseControl->t));
sblair 0:f09b7bb8bcce 136 setTimestamp(&gseControl->t);
sblair 0:f09b7bb8bcce 137 memcpy(&buf[offset], &gseControl->t, BER_GET_LENGTH_CTYPE_TIMESTAMP(&gseControl->t));
sblair 0:f09b7bb8bcce 138 offset += BER_GET_LENGTH_CTYPE_TIMESTAMP(&gseControl->t);
sblair 0:f09b7bb8bcce 139
sblair 0:f09b7bb8bcce 140 buf[offset++] = GSE_TAG_STNUM;
sblair 0:f09b7bb8bcce 141 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_INT32U(&gseControl->stNum));
sblair 0:f09b7bb8bcce 142 #if GOOSE_FIXED_SIZE == 1
sblair 0:f09b7bb8bcce 143 offset += ber_encode_integer_fixed_size(&buf[offset], &gseControl->stNum, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 144 #else
sblair 0:f09b7bb8bcce 145 offset += ber_encode_integer(&buf[offset], &gseControl->stNum, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 146 #endif
sblair 0:f09b7bb8bcce 147
sblair 0:f09b7bb8bcce 148 buf[offset++] = GSE_TAG_SQNUM;
sblair 0:f09b7bb8bcce 149 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_INT32U(&gseControl->sqNum));
sblair 0:f09b7bb8bcce 150 #if GOOSE_FIXED_SIZE == 1
sblair 0:f09b7bb8bcce 151 offset += ber_encode_integer_fixed_size(&buf[offset], &gseControl->sqNum, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 152 #else
sblair 0:f09b7bb8bcce 153 offset += ber_encode_integer(&buf[offset], &gseControl->sqNum, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 154 #endif
sblair 0:f09b7bb8bcce 155
sblair 0:f09b7bb8bcce 156 buf[offset++] = GSE_TAG_SIMULATION;
sblair 0:f09b7bb8bcce 157 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_BOOLEAN(&gseControl->test));
sblair 0:f09b7bb8bcce 158 offset += ber_encode_integer(&buf[offset], &gseControl->test, SV_GET_LENGTH_BOOLEAN);
sblair 0:f09b7bb8bcce 159
sblair 0:f09b7bb8bcce 160 buf[offset++] = GSE_TAG_CONFREV;
sblair 0:f09b7bb8bcce 161 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_INT32U(&gseControl->confRev));
sblair 0:f09b7bb8bcce 162 #if GOOSE_FIXED_SIZE == 1
sblair 0:f09b7bb8bcce 163 offset += ber_encode_integer_fixed_size(&buf[offset], &gseControl->confRev, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 164 #else
sblair 0:f09b7bb8bcce 165 offset += ber_encode_integer(&buf[offset], &gseControl->confRev, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 166 #endif
sblair 0:f09b7bb8bcce 167
sblair 0:f09b7bb8bcce 168 buf[offset++] = GSE_TAG_NDSCOM;
sblair 0:f09b7bb8bcce 169 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_BOOLEAN(&gseControl->ndsCom));
sblair 0:f09b7bb8bcce 170 offset += ber_encode_integer(&buf[offset], &gseControl->ndsCom, SV_GET_LENGTH_BOOLEAN);
sblair 0:f09b7bb8bcce 171
sblair 0:f09b7bb8bcce 172 buf[offset++] = GSE_TAG_NUMDATSETENTRIES;
sblair 0:f09b7bb8bcce 173 offset += encodeLength(&buf[offset], BER_GET_LENGTH_CTYPE_INT32U(&gseControl->numDatSetEntries));
sblair 0:f09b7bb8bcce 174 #if GOOSE_FIXED_SIZE == 1
sblair 0:f09b7bb8bcce 175 offset += ber_encode_integer_fixed_size(&buf[offset], &gseControl->numDatSetEntries, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 176 #else
sblair 0:f09b7bb8bcce 177 offset += ber_encode_integer(&buf[offset], &gseControl->numDatSetEntries, SV_GET_LENGTH_INT32U);
sblair 0:f09b7bb8bcce 178 #endif
sblair 0:f09b7bb8bcce 179
sblair 0:f09b7bb8bcce 180 buf[offset++] = GSE_TAG_ALLDATA;
sblair 0:f09b7bb8bcce 181 offset += encodeLength(&buf[offset], (gseControl->getDatasetLength)());
sblair 0:f09b7bb8bcce 182 offset += (gseControl->encodeDataset)(&buf[offset]);
sblair 0:f09b7bb8bcce 183
sblair 0:f09b7bb8bcce 184 // assume network interface, such as WinPcap, generates CRC bytes
sblair 0:f09b7bb8bcce 185
sblair 0:f09b7bb8bcce 186 return offset;
sblair 0:f09b7bb8bcce 187 }