lib/krb5/test_addr.c

   1 /*
   2  * Copyright (c) 2005 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
  32
  33 #include "krb5_locl.h"
  34 #include <err.h>
  35
  36 static void
  37 print_addr(krb5_context context, const char *addr)
  38 {
  39     krb5_addresses addresses;
  40     krb5_error_code ret;
  41     char buf[38];
  42     char buf2[1000];
  43     size_t len;
  44     int i;
  45
  46     ret = krb5_parse_address(context, addr, &addresses);
  47     if (ret)
  48         krb5_err(context, 1, ret, "krb5_parse_address");
  49
  50     if (addresses.len < 1)
  51         krb5_err(context, 1, ret, "too few addresses");
  52
  53     for (i = 0; i < addresses.len; i++) {
  54         krb5_print_address(&addresses.val[i], buf, sizeof(buf), &len);
  55 #if 0
  56         printf("addr %d: %s (%d/%d)\n", i, buf, (int)len, (int)strlen(buf));
  57 #endif
  58         if (strlen(buf) > sizeof(buf))
  59             krb5_err(context, 1, ret, "len %d larger then buf %d",
  60                      (int)strlen(buf), (int)sizeof(buf));
  61         krb5_print_address(&addresses.val[i], buf2, sizeof(buf2), &len);
  62 #if 0
  63         printf("addr %d: %s (%d/%d)\n", i, buf2, (int)len, (int)strlen(buf2));
  64 #endif
  65         if (strlen(buf2) > sizeof(buf2))
  66             krb5_err(context, 1, ret, "len %d larger then buf %d",
  67                      (int)strlen(buf2), (int)sizeof(buf2));
  68
  69     }
  70     krb5_free_addresses(context, &addresses);
  71
  72 }
  73
  74 static void
  75 truncated_addr(krb5_context context, const char *addr,
  76                size_t truncate_len, size_t outlen)
  77 {
  78     krb5_addresses addresses;
  79     krb5_error_code ret;
  80     char *buf;
  81     size_t len;
  82
  83     buf = ecalloc(1, outlen + 1);
  84
  85     ret = krb5_parse_address(context, addr, &addresses);
  86     if (ret)
  87         krb5_err(context, 1, ret, "krb5_parse_address");
  88
  89     if (addresses.len != 1)
  90         krb5_err(context, 1, ret, "addresses should be one");
  91
  92     krb5_print_address(&addresses.val[0], buf, truncate_len, &len);
  93
  94 #if 0
  95     printf("addr %s (%d/%d) should be %d\n", buf, (int)len, (int)strlen(buf), (int)outlen);
  96 #endif
  97
  98     if (truncate_len > strlen(buf) + 1)
  99         krb5_err(context, 1, ret, "%s truncate_len %d larger then strlen %d source %s",
 100                  buf, (int)truncate_len, (int)strlen(buf), addr);
 101
 102     if (outlen != len)
 103         krb5_err(context, 1, ret, "%s: outlen %d != len %d",
 104                  buf, (int)outlen, (int)strlen(buf));
 105
 106     krb5_print_address(&addresses.val[0], buf, outlen + 1, &len);
 107
 108 #if 0
 109     printf("addr %s (%d/%d)\n", buf, (int)len, (int)strlen(buf));
 110 #endif
 111
 112     if (len != outlen)
 113         abort();
 114     if (strlen(buf) != len)
 115         abort();
 116
 117     krb5_free_addresses(context, &addresses);
 118     free(buf);
 119 }
 120
 121 static void
 122 check_truncation(krb5_context context, const char *addr)
 123 {
 124     int i, len = strlen(addr);
 125
 126     truncated_addr(context, addr, len, len);
 127
 128     for (i = 0; i < len; i++)
 129         truncated_addr(context, addr, i, len);
 130 }
 131
 132 static void
 133 match_addr(krb5_context context, const char *range_addr,
 134            const char *one_addr, int match)
 135 {
 136     krb5_addresses range, one;
 137     krb5_error_code ret;
 138
 139     ret = krb5_parse_address(context, range_addr, &range);
 140     if (ret)
 141         krb5_err(context, 1, ret, "krb5_parse_address");
 142
 143     if (range.len != 1)
 144         krb5_err(context, 1, ret, "wrong num of addresses");
 145
 146     ret = krb5_parse_address(context, one_addr, &one);
 147     if (ret)
 148         krb5_err(context, 1, ret, "krb5_parse_address");
 149
 150     if (one.len != 1)
 151         krb5_err(context, 1, ret, "wrong num of addresses");
 152
 153     if (krb5_address_order(context, &range.val[0], &one.val[0]) == 0) {
 154         if (!match)
 155             krb5_errx(context, 1, "match when one shouldn't be");
 156     } else {
 157         if (match)
 158             krb5_errx(context, 1, "no match when one should be");
 159     }
 160
 161     krb5_free_addresses(context, &range);
 162     krb5_free_addresses(context, &one);
 163 }
 164
 165 #ifdef _MSC_VER
 166
 167 /* For the truncation tests, calling strcpy_s() or strcat_s() with a
 168    size of 0 results in the invalid parameter handler being invoked.
 169    For the debug version, the runtime also throws an assert. */
 170
 171 static void
 172 inv_param_handler(const wchar_t* expression,
 173                   const wchar_t* function,
 174                   const wchar_t* file,
 175                   unsigned int line,
 176                   uintptr_t pReserved)
 177 {
 178     printf("Invalid parameter handler invoked for: %S in %S(%d) [%S]\n",
 179            function, file, line, expression);
 180 }
 181
 182 static _invalid_parameter_handler _inv_old = NULL;
 183
 184 #define SET_INVALID_PARAM_HANDLER _inv_old = _set_invalid_parameter_handler(inv_param_handler)
 185
 186 #else
 187
 188 #define SET_INVALID_PARAM_HANDLER ((void) 0)
 189
 190 #endif
 191
 192 int
 193 main(int argc, char **argv)
 194 {
 195     krb5_context context;
 196     krb5_error_code ret;
 197
 198     SET_INVALID_PARAM_HANDLER;
 199
 200     setprogname(argv[0]);
 201
 202     ret = krb5_init_context(&context);
 203     if (ret)
 204         errx (1, "krb5_init_context failed: %d", ret);
 205
 206     print_addr(context, "RANGE:127.0.0.0/8");
 207     print_addr(context, "RANGE:127.0.0.0/24");
 208     print_addr(context, "RANGE:IPv4:127.0.0.0-IPv4:127.0.0.255");
 209     print_addr(context, "RANGE:130.237.237.4/29");
 210 #ifdef HAVE_IPV6
 211     print_addr(context, "RANGE:2001:db8:1:2:3:4:1428:7ab/64");
 212     print_addr(context, "RANGE:IPv6:fe80::209:6bff:fea0:e522/64");
 213     print_addr(context, "RANGE:IPv6:fe80::-IPv6:fe80::ffff:ffff:ffff:ffff");
 214     print_addr(context, "RANGE:fe80::-fe80::ffff:ffff:ffff:ffff");
 215 #endif
 216
 217     check_truncation(context, "IPv4:127.0.0.0");
 218     check_truncation(context, "RANGE:IPv4:127.0.0.0-IPv4:127.0.0.255");
 219 #ifdef HAVE_IPV6
 220     check_truncation(context, "IPv6:::");
 221     check_truncation(context, "IPv6:::1");
 222     check_truncation(context, "IPv6:2001:db8:1:2:3:4:1428:7ab");
 223     check_truncation(context, "IPv6:fe80::209:0:0:0");
 224     check_truncation(context, "IPv6:fe80::ffff:ffff:ffff:ffff");
 225 #endif
 226
 227     match_addr(context, "RANGE:127.0.0.0/8", "inet:127.0.0.0", 1);
 228     match_addr(context, "RANGE:127.0.0.0/8", "inet:127.255.255.255", 1);
 229     match_addr(context, "RANGE:127.0.0.0/8", "inet:128.0.0.0", 0);
 230
 231     match_addr(context, "RANGE:130.237.237.8/29", "inet:130.237.237.7", 0);
 232     match_addr(context, "RANGE:130.237.237.8/29", "inet:130.237.237.8", 1);
 233     match_addr(context, "RANGE:130.237.237.8/29", "inet:130.237.237.15", 1);
 234     match_addr(context, "RANGE:130.237.237.8/29", "inet:130.237.237.16", 0);
 235
 236     krb5_free_context(context);
 237
 238     return 0;
 239 }