1 | /* |
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2 | * COPYRIGHT (c) 1989-2015. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #ifdef HAVE_CONFIG_H |
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11 | #include "config.h" |
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12 | #endif |
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13 | |
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14 | #include <tmacros.h> |
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15 | #include "test_support.h" |
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16 | |
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17 | #include <unistd.h> |
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18 | #include <sys/types.h> |
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19 | #include <sys/stat.h> |
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20 | #include <fcntl.h> |
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21 | #include <errno.h> |
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22 | #include <rtems/libio.h> |
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23 | #include <rtems/malloc.h> |
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24 | #include <rtems/libcsupport.h> |
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25 | |
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26 | const char rtems_test_name[] = "PSXIMFS 2"; |
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27 | |
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28 | #if !HAVE_DECL_SETEUID |
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29 | extern int seteuid(uid_t euid); |
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30 | #endif |
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31 | |
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32 | /* forward declarations to avoid warnings */ |
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33 | rtems_task Init(rtems_task_argument argument); |
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34 | |
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35 | rtems_task Init( |
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36 | rtems_task_argument argument |
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37 | ) |
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38 | { |
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39 | static const char mount_point [] = "dir01"; |
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40 | static const char fs_type [] = RTEMS_FILESYSTEM_TYPE_IMFS; |
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41 | static const char slink_2_name [] = "node-slink-2"; |
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42 | static const uintptr_t mount_table_entry_size [] = { |
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43 | sizeof( rtems_filesystem_mount_table_entry_t ) |
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44 | + sizeof( fs_type ) |
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45 | + sizeof( rtems_filesystem_global_location_t ) |
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46 | }; |
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47 | static const uintptr_t slink_2_name_size [] = { |
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48 | sizeof( slink_2_name ) |
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49 | }; |
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50 | |
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51 | int status = 0; |
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52 | void *opaque; |
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53 | char linkname_n[20] = {0}; |
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54 | char linkname_p[20] = {0}; |
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55 | int i; |
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56 | struct stat stat_buf; |
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57 | |
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58 | TEST_BEGIN(); |
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59 | |
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60 | puts( "Creating directory /dir00" ); |
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61 | status = mkdir( "/dir00", S_IRWXU ); |
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62 | rtems_test_assert( status == 0 ); |
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63 | |
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64 | puts( "Creating directory /dir00/dir01" ); |
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65 | status = mkdir( "/dir00/dir01", S_IRWXU ); |
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66 | rtems_test_assert( status == 0 ); |
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67 | |
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68 | puts( "Changing directory to /dir00" ); |
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69 | status = chdir( "/dir00" ); |
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70 | rtems_test_assert( status == 0 ); |
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71 | |
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72 | puts( "Creating link dir01-link0 for dir01" ); |
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73 | status = link( "dir01", "dir01-link0" ); |
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74 | rtems_test_assert( status == 0 ); |
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75 | |
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76 | for( i = 1 ; ; ++i ) { |
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77 | sprintf( linkname_p, "dir01-link%04d", i-1 ); |
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78 | sprintf( linkname_n, "dir01-link%04d", i ); |
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79 | printf( "\nCreating link %s for %s\n", linkname_n, linkname_p ); |
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80 | status = link( linkname_p, linkname_n ); |
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81 | if( status != 0 ) { |
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82 | puts("Link creation failed" ); |
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83 | break; |
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84 | } |
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85 | } |
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86 | |
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87 | puts( "Creating a regular node /node, RDONLY" ); |
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88 | status = mknod( "/node", S_IFREG | S_IRUSR, 0LL ); |
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89 | rtems_test_assert( status == 0 ); |
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90 | |
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91 | puts( "Creating link /node-link for /node" ); |
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92 | status = link( "/node" , "/node-link" ); |
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93 | rtems_test_assert( status == 0 ); |
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94 | |
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95 | puts( "Opening /node-link in WRONLY mode -- expect EACCES" ); |
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96 | status = open( "/node-link", O_WRONLY ); |
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97 | rtems_test_assert( status == -1 ); |
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98 | rtems_test_assert( errno == EACCES ); |
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99 | |
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100 | puts( "Creating a symlink /node-slink for /node" ); |
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101 | status = symlink( "/node" , "/node-slink" ); |
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102 | rtems_test_assert( status == 0 ); |
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103 | |
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104 | puts( "Opening /node-slink in WRONLY mode -- expect EACCES" ); |
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105 | status = open( "/node-slink", O_WRONLY ); |
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106 | rtems_test_assert( status == -1 ); |
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107 | rtems_test_assert( errno == EACCES ); |
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108 | |
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109 | puts( "Allocate most of heap" ); |
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110 | opaque = rtems_heap_greedy_allocate( mount_table_entry_size, 1 ); |
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111 | |
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112 | printf( "Attempt to mount a fs at %s -- expect ENOMEM", mount_point ); |
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113 | status = mount( NULL, |
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114 | mount_point, |
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115 | fs_type, |
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116 | RTEMS_FILESYSTEM_READ_WRITE, |
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117 | NULL ); |
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118 | rtems_test_assert( status == -1 ); |
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119 | rtems_test_assert( errno == ENOMEM ); |
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120 | |
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121 | puts( "Freeing allocated memory" ); |
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122 | rtems_heap_greedy_free( opaque ); |
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123 | |
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124 | puts( "Changing directory to /" ); |
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125 | status = chdir( "/" ); |
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126 | rtems_test_assert( status == 0 ); |
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127 | |
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128 | puts( "Allocate most of heap" ); |
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129 | opaque = rtems_heap_greedy_allocate( NULL, 0 ); |
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130 | |
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131 | puts( "Attempt to create /node-link-2 for /node -- expect ENOMEM" ); |
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132 | status = link( "/node", "/node-link-2" ); |
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133 | rtems_test_assert( status == -1 ); |
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134 | rtems_test_assert( errno == ENOMEM ); |
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135 | |
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136 | puts( "Attempt to create /node-slink-2 for /node -- expect ENOMEM" ); |
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137 | status = symlink( "/node", "node-slink-2" ); |
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138 | rtems_test_assert( status == -1 ); |
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139 | rtems_test_assert( errno == ENOMEM ); |
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140 | |
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141 | puts( "Freeing allocated memory" ); |
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142 | rtems_heap_greedy_free( opaque ); |
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143 | |
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144 | puts( "Allocate most of heap" ); |
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145 | opaque = rtems_heap_greedy_allocate( slink_2_name_size, 1 ); |
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146 | |
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147 | printf( "Attempt to create %s for /node -- expect ENOMEM", slink_2_name ); |
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148 | status = symlink( "/node", slink_2_name ); |
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149 | rtems_test_assert( status == -1 ); |
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150 | rtems_test_assert( errno == ENOMEM ); |
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151 | |
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152 | puts( "Freeing allocated memory" ); |
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153 | rtems_heap_greedy_free( opaque ); |
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154 | |
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155 | puts( "Attempt to stat a hardlink" ); |
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156 | status = lstat( "/node-link", &stat_buf ); |
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157 | rtems_test_assert( status == 0 ); |
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158 | |
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159 | puts( "Changing euid to 10" ); |
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160 | status = seteuid( 10 ); |
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161 | rtems_test_assert( status == 0 ); |
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162 | |
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163 | puts( "Attempt chmod on /node -- expect EPERM" ); |
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164 | status = chmod( "/node", S_IRUSR ); |
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165 | rtems_test_assert( status == -1 ); |
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166 | rtems_test_assert( errno == EPERM ); |
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167 | |
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168 | puts( "Attempt chown on /node -- expect EPERM" ); |
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169 | status = chown( "/node", 10, 10 ); |
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170 | rtems_test_assert( status == -1 ); |
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171 | rtems_test_assert( errno == EPERM ); |
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172 | |
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173 | puts( "Changing euid back to 0 [root]" ); |
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174 | status = seteuid( 0 ); |
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175 | rtems_test_assert( status == 0 ); |
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176 | |
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177 | puts( "Creating a fifo -- OK" ); |
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178 | status = mkfifo( "/fifo", S_IRWXU ); |
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179 | rtems_test_assert( status == 0 ); |
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180 | |
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181 | puts( "chown /fifo to 10 -- OK" ); |
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182 | status = chown( "/fifo", 10, 10 ); |
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183 | rtems_test_assert( status == 0 ); |
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184 | |
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185 | puts( "Changing euid to 10" ); |
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186 | status = seteuid( 10 ); |
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187 | rtems_test_assert( status == 0 ); |
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188 | |
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189 | puts( "chmod /fifo -- OK" ); |
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190 | status = chmod( "/fifo", S_IRWXU ); |
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191 | rtems_test_assert( status == 0 ); |
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192 | |
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193 | printf( "chown /fifo to %o -- OK\n", 0 ); |
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194 | status = chown( "/fifo", 0, 0 ); |
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195 | rtems_test_assert( status == 0 ); |
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196 | |
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197 | TEST_END(); |
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198 | rtems_test_exit(0); |
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199 | } |
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200 | |
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201 | /* configuration information */ |
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202 | |
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203 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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204 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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205 | |
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206 | #define CONFIGURE_FILESYSTEM_IMFS |
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207 | |
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208 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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209 | #define CONFIGURE_IMFS_MEMFILE_BYTES_PER_BLOCK 16 |
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210 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 4 |
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211 | #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION |
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212 | |
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213 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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214 | |
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215 | #define CONFIGURE_INIT |
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216 | |
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217 | #define CONFIGURE_MAXIMUM_FIFOS 1 |
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218 | |
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219 | #include <rtems/confdefs.h> |
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220 | /* end of file */ |
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