1 | /* $Id: tstGuestCtrlParseBuffer.cpp 86543 2020-10-12 14:46:02Z vboxsync $ */
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2 | /** @file
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3 | * Output stream parsing test cases.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2011-2020 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #define LOG_GROUP LOG_GROUP_MAIN
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23 | #include <VBox/err.h>
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24 | #include <VBox/log.h>
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25 |
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26 | #include "../include/GuestCtrlImplPrivate.h"
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27 |
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28 | using namespace com;
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29 |
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30 | #include <iprt/env.h>
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31 | #include <iprt/test.h>
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32 | #include <iprt/stream.h>
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33 |
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34 | #ifndef BYTE
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35 | # define BYTE uint8_t
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36 | #endif
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37 |
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38 |
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39 | /*********************************************************************************************************************************
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40 | * Defined Constants And Macros *
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41 | *********************************************************************************************************************************/
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42 | #define STR_SIZE(a_sz) a_sz, sizeof(a_sz)
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43 |
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44 |
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45 | /*********************************************************************************************************************************
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46 | * Structures and Typedefs *
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47 | *********************************************************************************************************************************/
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48 | typedef struct VBOXGUESTCTRL_BUFFER_VALUE
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49 | {
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50 | char *pszValue;
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51 | } VBOXGUESTCTRL_BUFFER_VALUE, *PVBOXGUESTCTRL_BUFFER_VALUE;
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52 | typedef std::map< RTCString, VBOXGUESTCTRL_BUFFER_VALUE > GuestBufferMap;
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53 | typedef std::map< RTCString, VBOXGUESTCTRL_BUFFER_VALUE >::iterator GuestBufferMapIter;
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54 | typedef std::map< RTCString, VBOXGUESTCTRL_BUFFER_VALUE >::const_iterator GuestBufferMapIterConst;
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55 |
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56 |
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57 | /*********************************************************************************************************************************
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58 | * Global Variables *
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59 | *********************************************************************************************************************************/
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60 | char szUnterm1[] = { 'a', 's', 'd', 'f' };
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61 | char szUnterm2[] = { 'f', 'o', 'o', '3', '=', 'b', 'a', 'r', '3' };
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62 |
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63 | static struct
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64 | {
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65 | const char *pbData;
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66 | size_t cbData;
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67 | uint32_t offStart;
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68 | uint32_t offAfter;
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69 | uint32_t cMapElements;
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70 | int iResult;
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71 | } g_aTestBlocks[] =
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72 | {
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73 | /*
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74 | * Single object parsing.
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75 | * An object is represented by one or multiple key=value pairs which are
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76 | * separated by a single "\0". If this termination is missing it will be assumed
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77 | * that we need to collect more data to do a successful parsing.
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78 | */
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79 | /* Invalid stuff. */
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80 | { NULL, 0, 0, 0, 0, VERR_INVALID_POINTER },
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81 | { NULL, 512, 0, 0, 0, VERR_INVALID_POINTER },
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82 | { "", 0, 0, 0, 0, VERR_INVALID_PARAMETER },
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83 | { "", 0, 0, 0, 0, VERR_INVALID_PARAMETER },
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84 | { "foo=bar1", 0, 0, 0, 0, VERR_INVALID_PARAMETER },
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85 | { "foo=bar2", 0, 50, 50, 0, VERR_INVALID_PARAMETER },
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86 | /* Empty buffers. */
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87 | { "", 1, 0, 1, 0, VINF_SUCCESS },
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88 | { "\0", 1, 0, 1, 0, VINF_SUCCESS },
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89 | /* Unterminated values (missing "\0"). */
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90 | { STR_SIZE("test1"), 0, 0, 0, VERR_MORE_DATA },
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91 | { STR_SIZE("test2="), 0, 0, 0, VERR_MORE_DATA },
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92 | { STR_SIZE("test3=test3"), 0, 0, 0, VERR_MORE_DATA },
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93 | { STR_SIZE("test4=test4\0t41"), 0, sizeof("test4=test4\0") - 1, 1, VERR_MORE_DATA },
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94 | { STR_SIZE("test5=test5\0t51=t51"), 0, sizeof("test5=test5\0") - 1, 1, VERR_MORE_DATA },
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95 | /* Next block unterminated. */
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96 | { STR_SIZE("t51=t51\0t52=t52\0\0t53=t53"), 0, sizeof("t51=t51\0t52=t52\0") - 1, 2, VINF_SUCCESS },
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97 | { STR_SIZE("test6=test6\0\0t61=t61"), 0, sizeof("test6=test6\0") - 1, 1, VINF_SUCCESS },
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98 | /* Good stuff. */
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99 | { STR_SIZE("test61=\0test611=test611\0"), 0, sizeof("test61=\0test611=test611\0") - 1, 2, VINF_SUCCESS },
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100 | { STR_SIZE("test7=test7\0\0"), 0, sizeof("test7=test7\0") - 1, 1, VINF_SUCCESS },
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101 | { STR_SIZE("test8=test8\0t81=t81\0\0"), 0, sizeof("test8=test8\0t81=t81\0") - 1, 2, VINF_SUCCESS },
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102 | /* Good stuff, but with a second block -- should be *not* taken into account since
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103 | * we're only interested in parsing/handling the first object. */
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104 | { STR_SIZE("t9=t9\0t91=t91\0\0t92=t92\0\0"), 0, sizeof("t9=t9\0t91=t91\0") - 1, 2, VINF_SUCCESS },
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105 | /* Nasty stuff. */
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106 | /* iso 8859-1 encoding (?) of 'aou' all with diaeresis '=f' and 'ao' with diaeresis. */
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107 | { STR_SIZE("\xe4\xf6\xfc=\x66\xe4\xf6\0\0"), 0, sizeof("\xe4\xf6\xfc=\x66\xe4\xf6\0") - 1, 1, VINF_SUCCESS },
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108 | /* Like above, but after the first '\0' it adds 'ooo=aaa' all letters with diaeresis. */
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109 | { STR_SIZE("\xe4\xf6\xfc=\x66\xe4\xf6\0\xf6\xf6\xf6=\xe4\xe4\xe4"),
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110 | 0, sizeof("\xe4\xf6\xfc=\x66\xe4\xf6\0") - 1, 1, VERR_MORE_DATA },
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111 | /* Some "real world" examples. */
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112 | { STR_SIZE("hdr_id=vbt_stat\0hdr_ver=1\0name=foo.txt\0\0"), 0, sizeof("hdr_id=vbt_stat\0hdr_ver=1\0name=foo.txt\0") - 1,
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113 | 3, VINF_SUCCESS }
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114 | };
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115 |
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116 | static struct
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117 | {
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118 | const char *pbData;
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119 | size_t cbData;
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120 | /** Number of data blocks retrieved. These are separated by "\0\0". */
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121 | uint32_t cBlocks;
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122 | /** Overall result when done parsing. */
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123 | int iResult;
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124 | } const g_aTestStream[] =
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125 | {
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126 | /* No blocks. */
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127 | { "\0\0\0\0", sizeof("\0\0\0\0"), 0, VERR_NO_DATA },
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128 | /* Good stuff. */
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129 | { "\0b1=b1\0\0", sizeof("\0b1=b1\0\0"), 1, VERR_NO_DATA },
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130 | { "b1=b1\0\0", sizeof("b1=b1\0\0"), 1, VERR_NO_DATA },
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131 | { "b1=b1\0b2=b2\0\0", sizeof("b1=b1\0b2=b2\0\0"), 1, VERR_NO_DATA },
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132 | { "b1=b1\0b2=b2\0\0\0", sizeof("b1=b1\0b2=b2\0\0\0"), 1, VERR_NO_DATA }
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133 | };
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134 |
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135 | int manualTest(void)
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136 | {
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137 | int rc = VINF_SUCCESS;
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138 | static struct
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139 | {
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140 | const char *pbData;
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141 | size_t cbData;
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142 | uint32_t offStart;
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143 | uint32_t offAfter;
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144 | uint32_t cMapElements;
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145 | int iResult;
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146 | } const s_aTest[] =
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147 | {
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148 | { "test5=test5\0t51=t51", sizeof("test5=test5\0t51=t51"), 0, sizeof("test5=test5\0") - 1, 1, VERR_MORE_DATA },
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149 | { "\0\0test5=test5\0t51=t51", sizeof("\0\0test5=test5\0t51=t51"), 0, sizeof("\0\0test5=test5\0") - 1, 1, VERR_MORE_DATA },
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150 | };
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151 |
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152 | for (unsigned iTest = 0; iTest < RT_ELEMENTS(s_aTest); iTest++)
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153 | {
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154 | RTTestIPrintf(RTTESTLVL_DEBUG, "Manual test #%d\n", iTest);
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155 |
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156 | GuestProcessStream stream;
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157 | rc = stream.AddData((BYTE *)s_aTest[iTest].pbData, s_aTest[iTest].cbData);
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158 |
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159 | for (;;)
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160 | {
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161 | GuestProcessStreamBlock block;
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162 | rc = stream.ParseBlock(block);
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163 | RTTestIPrintf(RTTESTLVL_DEBUG, "\tReturned with rc=%Rrc, numItems=%ld\n",
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164 | rc, block.GetCount());
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165 |
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166 | if (block.GetCount())
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167 | break;
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168 | }
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169 | }
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170 |
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171 | return rc;
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172 | }
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173 |
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174 | int main()
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175 | {
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176 | RTTEST hTest;
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177 | RTEXITCODE rcExit = RTTestInitAndCreate("tstParseBuffer", &hTest);
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178 | if (rcExit != RTEXITCODE_SUCCESS)
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179 | return rcExit;
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180 | RTTestBanner(hTest);
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181 |
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182 | RTTestIPrintf(RTTESTLVL_DEBUG, "Initializing COM...\n");
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183 | HRESULT hrc = com::Initialize();
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184 | if (FAILED(hrc))
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185 | {
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186 | RTTestFailed(hTest, "Failed to initialize COM (%Rhrc)!\n", hrc);
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187 | return RTEXITCODE_FAILURE;
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188 | }
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189 |
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190 | #ifdef DEBUG_andy
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191 | int rc = manualTest();
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192 | if (RT_FAILURE(rc))
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193 | return RTEXITCODE_FAILURE;
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194 | #endif
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195 |
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196 | RTTestIPrintf(RTTESTLVL_INFO, "Doing basic tests ...\n");
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197 |
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198 | if (sizeof("sizecheck") != 10)
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199 | RTTestFailed(hTest, "Basic size test #1 failed (%zu <-> 10)", sizeof("sizecheck"));
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200 | if (sizeof("off=rab") != 8)
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201 | RTTestFailed(hTest, "Basic size test #2 failed (%zu <-> 7)", sizeof("off=rab"));
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202 | if (sizeof("off=rab\0\0") != 10)
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203 | RTTestFailed(hTest, "Basic size test #3 failed (%zu <-> 10)", sizeof("off=rab\0\0"));
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204 |
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205 | RTTestIPrintf(RTTESTLVL_INFO, "Doing line tests ...\n");
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206 |
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207 | /* Don't let the assertions trigger here
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208 | * -- we rely on the return values in the test(s) below. */
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209 | RTAssertSetQuiet(true);
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210 |
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211 | unsigned iTest;
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212 | for (iTest = 0; iTest < RT_ELEMENTS(g_aTestBlocks); iTest++)
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213 | {
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214 | RTTestIPrintf(RTTESTLVL_DEBUG, "=> Test #%u\n", iTest);
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215 |
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216 | GuestProcessStream stream;
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217 | if (RT_FAILURE(g_aTestBlocks[iTest].iResult))
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218 | RTTestDisableAssertions(hTest);
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219 | int iResult = stream.AddData((BYTE *)g_aTestBlocks[iTest].pbData, g_aTestBlocks[iTest].cbData);
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220 | if (RT_FAILURE(g_aTestBlocks[iTest].iResult))
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221 | RTTestRestoreAssertions(hTest);
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222 | if (RT_SUCCESS(iResult))
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223 | {
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224 | GuestProcessStreamBlock curBlock;
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225 | iResult = stream.ParseBlock(curBlock);
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226 | if (iResult != g_aTestBlocks[iTest].iResult)
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227 | RTTestFailed(hTest, "\tReturned %Rrc, expected %Rrc\n", iResult, g_aTestBlocks[iTest].iResult);
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228 | else if (stream.GetOffset() != g_aTestBlocks[iTest].offAfter)
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229 | RTTestFailed(hTest, "\tOffset %zu wrong, expected %u\n", stream.GetOffset(), g_aTestBlocks[iTest].offAfter);
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230 | else if (iResult == VERR_MORE_DATA)
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231 | RTTestIPrintf(RTTESTLVL_DEBUG, "\tMore data (Offset: %zu)\n", stream.GetOffset());
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232 |
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233 | if (RT_SUCCESS(iResult) || iResult == VERR_MORE_DATA)
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234 | if (curBlock.GetCount() != g_aTestBlocks[iTest].cMapElements)
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235 | RTTestFailed(hTest, "\tMap has %u elements, expected %u\n",
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236 | curBlock.GetCount(), g_aTestBlocks[iTest].cMapElements);
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237 |
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238 | /* There is remaining data left in the buffer (which needs to be merged
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239 | * with a following buffer) -- print it. */
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240 | size_t off = stream.GetOffset();
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241 | size_t cbToWrite = g_aTestBlocks[iTest].cbData - off;
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242 | if (cbToWrite)
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243 | {
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244 | RTTestIPrintf(RTTESTLVL_DEBUG, "\tRemaining (%u):\n", cbToWrite);
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245 |
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246 | /* How to properly get the current RTTESTLVL (aka IPRT_TEST_MAX_LEVEL) here?
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247 | * Hack alert: Using RTEnvGet for now. */
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248 | if (!RTStrICmp(RTEnvGet("IPRT_TEST_MAX_LEVEL"), "debug"))
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249 | RTStrmWriteEx(g_pStdOut, &g_aTestBlocks[iTest].pbData[off], cbToWrite - 1, NULL);
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250 | }
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251 | }
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252 | }
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253 |
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254 | RTTestIPrintf(RTTESTLVL_INFO, "Doing block tests ...\n");
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255 |
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256 | for (iTest = 0; iTest < RT_ELEMENTS(g_aTestStream); iTest++)
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257 | {
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258 | RTTestIPrintf(RTTESTLVL_DEBUG, "=> Block test #%u\n", iTest);
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259 |
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260 | GuestProcessStream stream;
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261 | int iResult = stream.AddData((BYTE*)g_aTestStream[iTest].pbData, g_aTestStream[iTest].cbData);
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262 | if (RT_SUCCESS(iResult))
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263 | {
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264 | uint32_t cBlocks = 0;
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265 | uint8_t uSafeCouunter = 0;
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266 | do
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267 | {
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268 | GuestProcessStreamBlock curBlock;
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269 | iResult = stream.ParseBlock(curBlock);
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270 | RTTestIPrintf(RTTESTLVL_DEBUG, "\tReturned with %Rrc\n", iResult);
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271 | if (RT_SUCCESS(iResult))
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272 | {
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273 | /* Only count block which have at least one pair. */
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274 | if (curBlock.GetCount())
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275 | cBlocks++;
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276 | }
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277 | if (uSafeCouunter++ > 32)
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278 | break;
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279 | } while (RT_SUCCESS(iResult));
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280 |
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281 | if (iResult != g_aTestStream[iTest].iResult)
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282 | RTTestFailed(hTest, "\tReturned %Rrc, expected %Rrc\n", iResult, g_aTestStream[iTest].iResult);
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283 | else if (cBlocks != g_aTestStream[iTest].cBlocks)
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284 | RTTestFailed(hTest, "\tReturned %u blocks, expected %u\n", cBlocks, g_aTestStream[iTest].cBlocks);
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285 | }
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286 | else
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287 | RTTestFailed(hTest, "\tAdding data failed with %Rrc", iResult);
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288 | }
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289 |
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290 | RTTestIPrintf(RTTESTLVL_DEBUG, "Shutting down COM...\n");
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291 | com::Shutdown();
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292 |
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293 | /*
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294 | * Summary.
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295 | */
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296 | return RTTestSummaryAndDestroy(hTest);
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297 | }
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298 |
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