Security/utilities/Regressions/su-16-cfdate-der.c

   1 /*
   2  * Copyright (c) 2012-2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #include "utilities/der_plist.h"
  26 #include "utilities/der_plist_internal.h"
  27 #include "utilities/der_date.h"
  28
  29 #include "utilities/SecCFRelease.h"
  30 #include "utilities/array_size.h"
  31
  32 #include <CoreFoundation/CoreFoundation.h>
  33 #include <corecrypto/ccder.h>
  34
  35 #include "utilities_regressions.h"
  36
  37 #define kMaxResultSize 100
  38
  39 struct test_case {
  40     CFAbsoluteTime value;
  41     char      *expected;
  42 };
  43
  44 static struct test_case test_cases[] =
  45 {
  46     { .value = 0.0,                     .expected = "20010101000000Z", },
  47     { .value = 1.0,                     .expected = "20010101000001Z", },
  48     { .value = 0.1,                     .expected = "20010101000000.1Z", },
  49     { .value = 0.0001,                  .expected = "20010101000000.0001Z", },
  50     { .value = 128.0,                   .expected = "20010101000208Z", },
  51     { .value = -1.0,                    .expected = "20001231235959Z", },
  52     { .value = -0.9,                    .expected = "20001231235959.1Z", },
  53     { .value = -129.0,                  .expected = "20001231235751Z", },
  54     { .value = 1000.0,                  .expected = "20010101001640Z", },
  55     { .value = 65280.0,                 .expected = "20010101180800Z", },
  56     { .value = 41234576.0,              .expected = "20020423060256Z", },
  57     { .value = -412343576.0,            .expected = "19871208120704Z", },
  58     { .value = 381778873.238063,        .expected = "20130205174113.238063Z", },
  59     { .value = 381778873.638063,        .expected = "20130205174113.638063Z", },
  60     { .value = 1400603.141,             .expected = "20010117050323.141Z", },
  61     { .value = -412343576.238063,       .expected = "19871208120703.761937Z", },
  62     { .value = -412343576.638063,       .expected = "19871208120703.361937Z", },
  63     { .value = 5.000539014,             .expected = "20010101000005.000539014Z", },
  64     { .value = -5.00053901,             .expected = "20001231235954.99946099Z", },
  65     { .value = 0.000539014,             .expected = "20010101000000.000539014Z", },
  66     { .value = -0.00053901,             .expected = "20001231235959.99946099Z", },
  67     { .value = 11031400603.141,         .expected = "23500729055643.141Z", }, // Michael's 400th birthday
  68     // Pedantic tests within 1 second of the epoch.
  69     { .value = 0.000100120234,          .expected = "20010101000000.000100120234Z", },
  70     { .value =                  0.00000000000000000000000000000000000000000010012654182354326,
  71       .expected = "20010101000000.00000000000000000000000000000000000000000010012654182354326Z", },
  72     { .value =                 -0.00000000000000000000000000000000000000000010012654182354326,
  73       .expected = "20001231235959.99999999999999999999999999999999999999999989987345817645674Z", },
  74     { .value = 0.0001234522366234637,   .expected = "20010101000000.0001234522366234637Z", },
  75 };
  76
  77 static CFStringRef string_create_with_hex(const uint8_t* start, const uint8_t* end) {
  78     CFMutableStringRef s = CFStringCreateMutable(NULL, 0);
  79     CFStringAppendFormat(s, 0, CFSTR(".size = %" PRIdPTR ", .res = { "), (intptr_t)(end - start));
  80     if (start)
  81         while (start < end)
  82             CFStringAppendFormat(s, 0, CFSTR("0x%02X, "), *start++);
  83     CFStringAppend(s, CFSTR("},\n"));
  84     return s;
  85 }
  86
  87 static bool ok_der_date_is(int testnumber, const char *expected, const uint8_t *der, const uint8_t *der_end) {
  88     size_t elen = strlen(expected);
  89     size_t dlen;
  90     const uint8_t *body = ccder_decode_tl(CCDER_GENERALIZED_TIME, &dlen, der, der_end);
  91     if (!body) {
  92         return fail("[%d] encoded date %@ expected %s not a generalized time", testnumber, string_create_with_hex(der, der_end), expected);
  93     } else if (body + dlen != der_end) {
  94         return fail("[%d] Trailing garbage in encoded string after generalized time got: %@ expected: %s", testnumber, string_create_with_hex(der, der_end), expected);
  95     } else if (dlen != elen) {
  96         return fail("[%d] encoded date len %zu != %zu got: %.*s expected: %s", testnumber, dlen , elen, (int)dlen, (char *)body, expected);
  97     } else if (memcmp(body, expected, elen)) {
  98         return fail("[%d] encoded got: %.*s expected: %s", testnumber, (int)dlen, (char *)body, expected);
  99     } else {
 100         return pass("[%d] properly encoded %s", testnumber, expected);
 101     }
 102 }
 103
 104 static bool ok_date_equals(int testnumber, CFDateRef decoded, CFDateRef expected) {
 105     CFAbsoluteTime t1 = CFDateGetAbsoluteTime(decoded);
 106     CFAbsoluteTime t2 = CFDateGetAbsoluteTime(expected);
 107     if (-1.0 < t1 && t1 < 1.0) {
 108         // Dates near the epoch can't be off by more than 1 nanosecond.  Other dates should be exactly right.
 109         return ok((decoded != NULL) && fabs(t1 - t2) < 7e-18, "[%d] Delta too big %g %a != %a (%g != %g).", testnumber, fabs(t1 - t2), t1, t2, t1, t2);
 110     } else {
 111         return ok((decoded != NULL) && CFEqual(decoded, expected), "[%d] Didn't make equal value %a != %a (%g != %g).", testnumber, t1, t2, t1, t2);
 112     }
 113 }
 114
 115 #define kTestsPerTestCase 12
 116 static void one_test(const struct test_case * thisCase, int testnumber)
 117 {
 118     uint8_t buffer[kMaxResultSize];
 119     uint8_t* buffer_end = buffer + sizeof(buffer);
 120
 121     CFDateRef initialValue = CFDateCreate(NULL, thisCase->value);
 122     CFErrorRef error = NULL;
 123
 124     uint8_t* encoded = der_encode_plist(initialValue, &error, buffer, buffer_end);
 125     SKIP:
 126     {
 127         skip("der_encode_plist failed", 1,
 128              ok(encoded != NULL, "[%d] der_encode_plist failed: %@", testnumber, error));
 129         ok_der_date_is(testnumber, thisCase->expected, encoded, buffer_end);
 130     }
 131     CFReleaseNull(error);
 132
 133     encoded = der_encode_date(initialValue, &error, buffer, buffer_end);
 134     SKIP:
 135     {
 136         skip("der_encode_date failed", 1,
 137              ok(encoded != NULL, "[%d] der_encode_date failed: %@", testnumber, error));
 138         ok_der_date_is(testnumber, thisCase->expected, encoded, buffer_end);
 139     }
 140     CFReleaseNull(error);
 141
 142     CFDateRef decoded = NULL;
 143     const uint8_t* decode_end = der_decode_date(NULL, kCFPropertyListMutableContainers,
 144                                                   &decoded, &error, encoded, buffer_end);
 145     ok(error == NULL, "[%d] der_decode_date failed: %@", testnumber, error);
 146     CFReleaseNull(error);
 147
 148     ok(decode_end == buffer_end, "[%d] didn't decode whole buffer", testnumber);
 149     ok_date_equals(testnumber, decoded, initialValue);
 150
 151     CFPropertyListRef decoded_type = NULL;
 152
 153     decode_end = der_decode_plist(NULL, kCFPropertyListMutableContainers,
 154                                   &decoded_type, &error, encoded, buffer_end);
 155     ok(error == NULL, "[%d] der_decode_plist failed: %@", testnumber, error);
 156     CFReleaseNull(error);
 157
 158     ok(decode_end == buffer_end, "[%d] didn't decode whole buffer", testnumber);
 159     ok_date_equals(testnumber, decoded, initialValue);
 160
 161     is(der_sizeof_date(initialValue, NULL), ccder_sizeof(CCDER_GENERALIZED_TIME, strlen(thisCase->expected)), "[%d] der_sizeof_date mismatch", testnumber);
 162     is(der_sizeof_plist(initialValue, NULL), ccder_sizeof(CCDER_GENERALIZED_TIME, strlen(thisCase->expected)), "[%d] der_sizeof_plist mismatch", testnumber);
 163
 164     CFReleaseSafe(initialValue);
 165     CFReleaseNull(decoded);
 166     CFReleaseNull(decoded_type);
 167 }
 168
 169 #define kTestCount (array_size(test_cases) * kTestsPerTestCase)
 170 static void tests(void)
 171 {
 172     for (int testnumber = 0; testnumber < array_size(test_cases); ++testnumber)
 173         one_test(test_cases + testnumber, testnumber);
 174 }
 175
 176 int su_16_cfdate_der(int argc, char *const *argv)
 177 {
 178     plan_tests(kTestCount);
 179     tests();
 180
 181     return 0;
 182 }