OpenWrt – Blame information for rev 1
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1 | office | 1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
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3 | * (SEA)ttle i(MA)ge is the image which used in project seattle. |
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4 | * |
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5 | * Created by David Hsieh <david_hsieh@alphanetworks.com> |
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6 | * Copyright (C) 2008-2009 Alpha Networks, Inc. |
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7 | * |
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8 | * This file is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU Lesser General Public |
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10 | * License as published by the Free Software Foundation; either' |
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11 | * version 2.1 of the License, or (at your option) any later version. |
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12 | * |
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13 | * The GNU C Library is distributed in the hope that it will be useful,' |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * Lesser General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU Lesser General Public |
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19 | * License along with the GNU C Library; if not, write to the Free |
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20 | * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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21 | * 02111-1307 USA. |
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22 | */ |
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23 | |||
24 | #ifndef __SEAMA_HEADER_FILE__ |
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25 | #define __SEAMA_HEADER_FILE__ |
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26 | |||
27 | #include <stdint.h> |
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28 | |||
29 | #define SEAMA_MAGIC 0x5EA3A417 |
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30 | |||
31 | /* |
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32 | * SEAMA looks like the following map. |
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33 | * All the data of the header should be in network byte order. |
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34 | * |
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35 | * +-------------+-------------+------------ |
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36 | * | SEAMA magic | ^ |
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37 | * +-------------+-------------+ | |
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38 | * | reserved | meta size | | |
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39 | * +-------------+-------------+ header |
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40 | * | image size (0 bytes) | | |
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41 | * +-------------+-------------+ | |
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42 | * ~ Meta data ~ v |
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43 | * +-------------+-------------+------------ |
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44 | * | SEAMA magic | ^ ^ |
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45 | * +-------------+-------------+ | | |
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46 | * | reserved | meta size | | | |
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47 | * +-------------+-------------+ | | |
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48 | * | image size | | | |
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49 | * +-------------+-------------+ header | |
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50 | * | | | | |
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51 | * | 16 bytes of MD5 digest | | | |
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52 | * | | | | |
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53 | * | | | | |
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54 | * +-------------+-------------+ | | |
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55 | * ~ Meta data ~ v | |
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56 | * +-------------+-------------+------- | |
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57 | * | | | |
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58 | * | Image of the 1st entity | | |
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59 | * ~ ~ 1st entity |
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60 | * | | | |
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61 | * | | v |
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62 | * +-------------+-------------+------------- |
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63 | * | SEAMA magic | ^ ^ |
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64 | * +-------------+-------------+ | | |
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65 | * | reserved | meta size | | | |
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66 | * +-------------+-------------+ | | |
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67 | * | image size | | | |
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68 | * +-------------+-------------+ header | |
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69 | * | | | | |
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70 | * | 16 bytes of MD5 digest | | | |
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71 | * | | | | |
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72 | * | | | | |
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73 | * +-------------+-------------+ | | |
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74 | * ~ Meta data ~ v | |
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75 | * +-------------+-------------+------- | |
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76 | * | | | |
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77 | * | Image of the 2nd entity | | |
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78 | * ~ ~ 2nd entity |
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79 | * | | | |
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80 | * | | v |
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81 | * +-------------+-------------+------------- |
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82 | */ |
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83 | |||
84 | |||
85 | /* |
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86 | * SEAMA header |
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87 | * |
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88 | * |<-------- 32 bits -------->| |
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89 | * +-------------+-------------+ |
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90 | * | SEAMA magic | |
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91 | * +-------------+-------------+ |
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92 | * | reserved | meta size | |
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93 | * +-------------+-------------+ |
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94 | * | image size | |
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95 | * +-------------+-------------+ |
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96 | */ |
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97 | |||
98 | /* seama header */ |
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99 | struct seama_entity_header { |
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100 | uint32_t magic; /* should always be SEAMA_MAGIC. */ |
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101 | uint16_t reserved; /* reserved for */ |
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102 | uint16_t metasize; /* size of the META data */ |
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103 | uint32_t size; /* size of the image */ |
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104 | uint8_t md5[16]; |
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105 | } __attribute__ ((packed)); |
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106 | |||
107 | |||
108 | #endif |