1 | /* |
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2 | * |
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3 | * Copyright (c) 2007-2017 The University of Waikato, Hamilton, New Zealand. |
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4 | * All rights reserved. |
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5 | * |
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6 | * This file is part of libtrace. |
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7 | * |
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8 | * This code has been developed by the University of Waikato WAND |
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9 | * research group. For further information please see http://www.wand.net.nz/ |
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10 | * |
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11 | * libtrace is free software; you can redistribute it and/or modify |
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12 | * it under the terms of the GNU Lesser General Public License as published by |
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13 | * the Free Software Foundation; either version 3 of the License, or |
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14 | * (at your option) any later version. |
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15 | * |
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16 | * libtrace is distributed in the hope that it will be useful, |
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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19 | * GNU Lesser General Public License for more details. |
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20 | * |
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21 | * You should have received a copy of the GNU Lesser General Public License |
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22 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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23 | * |
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24 | * |
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25 | */ |
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26 | |
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27 | |
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28 | #ifndef FORMAT_NDAG_H_ |
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29 | #define FORMAT_NDAG_H_ |
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30 | |
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31 | #include <libtrace.h> |
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32 | |
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33 | #define NDAG_MAX_DGRAM_SIZE (8900) |
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34 | |
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35 | #define NDAG_MAGIC_NUMBER (0x4E444147) |
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36 | #define NDAG_EXPORT_VERSION 1 |
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37 | |
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38 | |
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39 | enum { |
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40 | NDAG_PKT_BEACON = 0x01, |
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41 | NDAG_PKT_ENCAPERF = 0x02, |
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42 | NDAG_PKT_RESTARTED = 0x03, |
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43 | NDAG_PKT_ENCAPRT = 0x04, |
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44 | NDAG_PKT_KEEPALIVE = 0x05 |
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45 | }; |
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46 | |
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47 | /* == Protocol header structures == */ |
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48 | |
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49 | /* Common header -- is prepended to all exported records */ |
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50 | typedef struct ndag_common_header { |
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51 | uint32_t magic; |
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52 | uint8_t version; |
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53 | uint8_t type; |
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54 | uint16_t monitorid; |
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55 | } PACKED ndag_common_t; |
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56 | |
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57 | /* Beacon -- structure is too simple to be worth defining as a struct */ |
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58 | /* |
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59 | * uint16_t numberofstreams; |
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60 | * uint16_t firststreamport; |
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61 | * uint16_t secondstreamport; |
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62 | * .... |
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63 | * uint16_t laststreamport; |
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64 | */ |
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65 | |
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66 | /* Encapsulation header -- used by both ENCAPERF and ENCAPRT records */ |
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67 | typedef struct ndag_encap { |
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68 | uint64_t started; |
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69 | uint32_t seqno; |
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70 | uint16_t streamid; |
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71 | uint16_t recordcount; /* acts as RT type for ENCAPRT records */ |
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72 | } PACKED ndag_encap_t; |
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73 | |
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74 | #endif |
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