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
  24 #define VARIANT_SKIP_EXPORTED
  25
  26 #include "../libdarwin/variant.c"
  27
  28 T_DECL(os_variant_detailed, "Looks at individual checks")
  29 {
  30         T_MAYFAIL;
  31         T_EXPECT_FALSE(_check_disabled(VP_ALL), NULL);
  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 #else
  54         T_MAYFAIL;
  55         T_EXPECT_FALSE(_check_internal_diags_profile(), NULL);
  56 #endif
  57
  58         T_MAYFAIL;
  59         T_EXPECT_TRUE(_check_can_has_debugger(), NULL);
  60 }
  61
  62 T_DECL(os_variant_override_parse, "Checks the parsing of the override file")
  63 {
  64         // Warm up the dispatch_once
  65         _check_disabled(VP_ALL);
  66
  67         T_LOG("Override: NULL"); // Live system
  68         _parse_disabled_status(NULL);
  69         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  70         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  71         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  72         T_MAYFAIL; T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  73
  74         T_LOG("Override: \"content\"");
  75         _parse_disabled_status("content");
  76         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
  77         T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  78         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  79         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  80
  81         T_LOG("Override: \"ui\"");
  82         _parse_disabled_status("ui");
  83         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  84         T_EXPECT_FALSE(_check_disabled(VP_DIAGNOSTICS), NULL);
  85         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
  86         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
  87
  88         T_LOG("Override: \"security,diagnostics\"");
  89         _parse_disabled_status("security,diagnostics");
  90         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
  91         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
  92         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
  93         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
  94
  95         T_LOG("Override: \"content,diagnostics,ui,security\"");
  96         _parse_disabled_status("content,diagnostics,ui,security");
  97         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
  98         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
  99         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
 100         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 101
 102         T_LOG("Override: \"diagnostics\\n"); // Now check newline-handling.
 103         _parse_disabled_status("diagnostics\n");
 104         T_EXPECT_FALSE(_check_disabled(VP_CONTENT), NULL);
 105         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
 106         T_EXPECT_FALSE(_check_disabled(VP_UI), NULL);
 107         T_EXPECT_FALSE(_check_disabled(VP_SECURITY), NULL);
 108
 109         T_LOG("Override: \"content,diagnostics\\nui,security\\n\"");
 110         _parse_disabled_status("content,diagnostics\nui,security\n");
 111         T_EXPECT_TRUE(_check_disabled(VP_CONTENT), NULL);
 112         T_EXPECT_TRUE(_check_disabled(VP_DIAGNOSTICS), NULL);
 113         T_EXPECT_TRUE(_check_disabled(VP_UI), NULL);
 114         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 115 }
 116
 117 T_DECL(os_status_cache, "Checks saving and restoring of state")
 118 {
 119         uint64_t status = 0;
 120         size_t status_size = sizeof(status);
 121         int ret = sysctlbyname(CACHE_SYSCTL_NAME, &status, &status_size, NULL, 0);
 122         T_EXPECT_POSIX_ZERO(ret, "sysctlbyname(kern.osvariant_status)");
 123         T_EXPECT_GT(status, 0ULL, "Kernel's status has bits set");
 124         T_EXPECT_EQ(status & STATUS_INITIAL_BITS, STATUS_INITIAL_BITS, "Kernel's status has initial bits set");
 125
 126         T_MAYFAIL;
 127         T_EXPECT_TRUE(_check_can_has_debugger(), NULL);
 128
 129         status = _get_cached_check_status();
 130         T_LOG("Cached status: %llx", status);
 131
 132         T_EXPECT_EQ(status & STATUS_INITIAL_BITS, STATUS_INITIAL_BITS, "Our status has initial bits set");
 133
 134         _restore_cached_check_status(status);
 135
 136         T_MAYFAIL;
 137         T_EXPECT_TRUE(os_variant_allows_internal_security_policies(NULL), NULL);
 138
 139         status = STATUS_INITIAL_BITS |
 140                         (S_NO << (SFP_CAN_HAS_DEBUGGER * STATUS_BIT_WIDTH));
 141         T_LOG("Restoring status without can_has_debugger: %llx", status);
 142         _restore_cached_check_status(status);
 143
 144         T_EXPECT_FALSE(_check_can_has_debugger(), NULL);
 145
 146         // Trigger dispatch_once internally with known state
 147         _check_disabled(VP_SECURITY);
 148
 149         status = STATUS_INITIAL_BITS |
 150                         (0x1ULL << (VP_SECURITY + 32));
 151         T_LOG("Restoring status with override: %llx", status);
 152         _restore_cached_check_status(status);
 153
 154         T_EXPECT_TRUE(_check_disabled(VP_SECURITY), NULL);
 155 }