tests/os_variant.c

   1 #include <os/variant_private.h>
   2
   3 #include <darwintest.h>
   4
   5 /*
   6  * Most of these are MAYFAIL because the test might sometimes run on non-internal devices.
   7  */
   8
   9 T_DECL(os_variant_basic, "Just calls all the APIs")
  10 {
  11         T_MAYFAIL;
  12         T_EXPECT_TRUE(os_variant_has_internal_content("com.apple.Libc.tests"), NULL);
  13
  14         T_MAYFAIL;
  15         T_EXPECT_TRUE(os_variant_has_internal_diagnostics("com.apple.Libc.tests"), NULL);
  16
  17         T_MAYFAIL;
  18         T_EXPECT_TRUE(os_variant_has_internal_ui("com.apple.Libc.tests"), NULL);
  19
  20         T_MAYFAIL;
  21         T_EXPECT_TRUE(os_variant_allows_internal_security_policies("com.apple.Libc.tests"), NULL);
  22
  23         T_MAYFAIL;
  24         T_EXPECT_FALSE(os_variant_has_factory_content("com.apple.Libc.tests"), NULL);
  25 }
  26
  27 #define VARIANT_SKIP_EXPORTED
  28
  29 #include "../libdarwin/variant.c"
  30
  31 T_DECL(os_variant_detailed, "Looks at individual checks")
  32 {
  33         T_MAYFAIL;
  34         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  35
  36         T_MAYFAIL;
  37         T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  38
  39         T_MAYFAIL;
  40         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  41
  42         T_MAYFAIL;
  43         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  44
  45 #if !TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
  46         T_MAYFAIL;
  47         T_EXPECT_TRUE(_check_internal_content(), NULL);
  48 #endif
  49
  50 #if TARGET_OS_IPHONE
  51         T_MAYFAIL;
  52         T_EXPECT_TRUE(_check_internal_release_type(), NULL);
  53
  54         T_MAYFAIL;
  55         T_EXPECT_TRUE(_check_factory_release_type(), NULL);
  56 #else
  57         T_MAYFAIL;
  58         T_EXPECT_FALSE(_check_internal_diags_profile(), NULL);
  59
  60         T_MAYFAIL;
  61         T_EXPECT_FALSE(_check_factory_content(), NULL);
  62 #endif
  63
  64         T_MAYFAIL;
  65         T_EXPECT_TRUE(_check_can_has_debugger(), NULL);
  66 }
  67
  68 T_DECL(os_variant_override_parse, "Checks the parsing of the override file")
  69 {
  70         // Warm up the dispatch_once
  71         _check_disabled(VP_CONTENT);
  72
  73         T_LOG("Override: NULL"); // Live system
  74         _parse_disabled_status(NULL);
  75         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  76         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  77         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  78         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  79
  80         T_LOG("Override: \"content\"");
  81         _parse_disabled_status("content");
  82         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
  83         T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  84         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  85         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  86
  87         T_LOG("Override: \"ui\"");
  88         _parse_disabled_status("ui");
  89         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  90         T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  91         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
  92         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  93
  94         T_LOG("Override: \"security,diagnostics\"");
  95         _parse_disabled_status("security,diagnostics");
  96         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  97         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
  98         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  99         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 100
 101         T_LOG("Override: \"content,diagnostics,ui,security\"");
 102         _parse_disabled_status("content,diagnostics,ui,security");
 103         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
 104         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
 105         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
 106         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 107
 108         T_LOG("Override: \"diagnostics\\n"); // Now check newline-handling.
 109         _parse_disabled_status("diagnostics\n");
 110         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
 111         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
 112         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
 113         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
 114
 115         T_LOG("Override: \"content,diagnostics\\nui,security\\n\"");
 116         _parse_disabled_status("content,diagnostics\nui,security\n");
 117         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
 118         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
 119         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
 120         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 121 }
 122
 123 T_DECL(os_status_cache, "Checks saving and restoring of state")
 124 {
 125         uint64_t status = 0;
 126         size_t status_size = sizeof(status);
 127         int ret = sysctlbyname(CACHE_SYSCTL_NAME, &status, &status_size, NULL, 0);
 128         T_EXPECT_POSIX_ZERO(ret, "sysctlbyname(kern.osvariant_status)");
 129         T_EXPECT_GT(status, 0ULL, "Kernel's status has bits set");
 130         T_EXPECT_EQ(status & STATUS_INITIAL_BITS, STATUS_INITIAL_BITS, "Kernel's status has initial bits set");
 131
 132         T_MAYFAIL;
 133         T_EXPECT_TRUE(_check_can_has_debugger(), NULL);
 134
 135         status = _get_cached_check_status();
 136         T_LOG("Cached status: %llx", status);
 137
 138         T_EXPECT_EQ(status & STATUS_INITIAL_BITS, STATUS_INITIAL_BITS, "Our status has initial bits set");
 139
 140         _restore_cached_check_status(status);
 141
 142         T_MAYFAIL;
 143         T_EXPECT_TRUE(os_variant_allows_internal_security_policies(NULL), NULL);
 144
 145         status = STATUS_INITIAL_BITS |
 146                         (S_NO << (SFP_CAN_HAS_DEBUGGER * STATUS_BIT_WIDTH));
 147         T_LOG("Restoring status without can_has_debugger: %llx", status);
 148         _restore_cached_check_status(status);
 149
 150         T_EXPECT_FALSE(_check_can_has_debugger(), NULL);
 151
 152         // Trigger dispatch_once internally with known state
 153         _check_disabled(VP_SECURITY);
 154
 155         status = STATUS_INITIAL_BITS |
 156                         (0x1ULL << (VP_SECURITY + 32));
 157         T_LOG("Restoring status with override: %llx", status);
 158         _restore_cached_check_status(status);
 159
 160         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 161 }