src/test/test-in-addr-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <fnmatch.h>
   4 #include <netinet/in.h>
   5
   6 #include "log.h"
   7 #include "strv.h"
   8 #include "in-addr-util.h"
   9
  10 static void test_in_addr_prefix_from_string_one(
  11                 const char *p,
  12                 int family,
  13                 int ret,
  14                 const union in_addr_union *u,
  15                 unsigned char prefixlen,
  16                 int ret_refuse,
  17                 unsigned char prefixlen_refuse,
  18                 int ret_legacy,
  19                 unsigned char prefixlen_legacy) {
  20
  21         union in_addr_union q;
  22         unsigned char l;
  23         int f, r;
  24
  25         r = in_addr_prefix_from_string(p, family, &q, &l);
  26         assert_se(r == ret);
  27
  28         if (r < 0)
  29                 return;
  30
  31         assert_se(in_addr_equal(family, &q, u));
  32         assert_se(l == prefixlen);
  33
  34         r = in_addr_prefix_from_string_auto(p, &f, &q, &l);
  35         assert_se(r >= 0);
  36
  37         assert_se(f == family);
  38         assert_se(in_addr_equal(family, &q, u));
  39         assert_se(l == prefixlen);
  40
  41         r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_REFUSE, &f, &q, &l);
  42         assert_se(r == ret_refuse);
  43
  44         if (r >= 0) {
  45                 assert_se(f == family);
  46                 assert_se(in_addr_equal(family, &q, u));
  47                 assert_se(l == prefixlen_refuse);
  48         }
  49
  50         r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_LEGACY, &f, &q, &l);
  51         assert_se(r == ret_legacy);
  52
  53         if (r >= 0) {
  54                 assert_se(f == family);
  55                 assert_se(in_addr_equal(family, &q, u));
  56                 assert_se(l == prefixlen_legacy);
  57         }
  58 }
  59
  60 static void test_in_addr_prefix_from_string(void) {
  61         test_in_addr_prefix_from_string_one("", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  62         test_in_addr_prefix_from_string_one("/", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  63         test_in_addr_prefix_from_string_one("/8", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  64         test_in_addr_prefix_from_string_one("1.2.3.4", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 32, -ENOANO, 0, 0, 8);
  65         test_in_addr_prefix_from_string_one("1.2.3.4/0", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 0, 0, 0, 0, 0);
  66         test_in_addr_prefix_from_string_one("1.2.3.4/1", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 1, 0, 1, 0, 1);
  67         test_in_addr_prefix_from_string_one("1.2.3.4/2", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 2, 0, 2, 0, 2);
  68         test_in_addr_prefix_from_string_one("1.2.3.4/32", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 32, 0, 32, 0, 32);
  69         test_in_addr_prefix_from_string_one("1.2.3.4/33", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
  70         test_in_addr_prefix_from_string_one("1.2.3.4/-1", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
  71         test_in_addr_prefix_from_string_one("::1", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  72
  73         test_in_addr_prefix_from_string_one("", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  74         test_in_addr_prefix_from_string_one("/", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  75         test_in_addr_prefix_from_string_one("/8", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
  76         test_in_addr_prefix_from_string_one("::1", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 128, -ENOANO, 0, 0, 0);
  77         test_in_addr_prefix_from_string_one("::1/0", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 0, 0, 0, 0, 0);
  78         test_in_addr_prefix_from_string_one("::1/1", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 1, 0, 1, 0, 1);
  79         test_in_addr_prefix_from_string_one("::1/2", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 2, 0, 2, 0, 2);
  80         test_in_addr_prefix_from_string_one("::1/32", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 32, 0, 32, 0, 32);
  81         test_in_addr_prefix_from_string_one("::1/33", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 33, 0, 33, 0, 33);
  82         test_in_addr_prefix_from_string_one("::1/64", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 64, 0, 64, 0, 64);
  83         test_in_addr_prefix_from_string_one("::1/128", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 128, 0, 128, 0, 128);
  84         test_in_addr_prefix_from_string_one("::1/129", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
  85         test_in_addr_prefix_from_string_one("::1/-1", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
  86 }
  87
  88 static void test_in_addr_prefix_to_string_valid(int family, const char *p) {
  89         _cleanup_free_ char *str = NULL;
  90         union in_addr_union u;
  91         unsigned char l;
  92
  93         log_info("/* %s */", p);
  94
  95         assert_se(in_addr_prefix_from_string(p, family, &u, &l) >= 0);
  96         assert_se(in_addr_prefix_to_string(family, &u, l, &str) >= 0);
  97         assert_se(streq(str, p));
  98 }
  99
 100 static void test_in_addr_prefix_to_string_unoptimized(int family, const char *p) {
 101         _cleanup_free_ char *str1 = NULL, *str2 = NULL;
 102         union in_addr_union u1, u2;
 103         unsigned char len1, len2;
 104
 105         log_info("/* %s */", p);
 106
 107         assert_se(in_addr_prefix_from_string(p, family, &u1, &len1) >= 0);
 108         assert_se(in_addr_prefix_to_string(family, &u1, len1, &str1) >= 0);
 109         assert_se(in_addr_prefix_from_string(str1, family, &u2, &len2) >= 0);
 110         assert_se(in_addr_prefix_to_string(family, &u2, len2, &str2) >= 0);
 111
 112         assert_se(streq(str1, str2));
 113         assert_se(len1 == len2);
 114         assert_se(in_addr_equal(family, &u1, &u2) > 0);
 115 }
 116
 117 static void test_in_addr_prefix_to_string(void) {
 118         test_in_addr_prefix_to_string_valid(AF_INET, "0.0.0.0/32");
 119         test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/0");
 120         test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/24");
 121         test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/32");
 122         test_in_addr_prefix_to_string_valid(AF_INET, "255.255.255.255/32");
 123
 124         test_in_addr_prefix_to_string_valid(AF_INET6, "::1/128");
 125         test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1/64");
 126         test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1234:1/64");
 127         test_in_addr_prefix_to_string_valid(AF_INET6, "1111:2222:3333:4444:5555:6666:7777:8888/128");
 128
 129         test_in_addr_prefix_to_string_unoptimized(AF_INET, "0.0.0.0");
 130         test_in_addr_prefix_to_string_unoptimized(AF_INET, "192.168.0.1");
 131
 132         test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:0000:0000:0000:0000:0000:0000:0001/64");
 133         test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:1111::0000:2222:3333:4444:0001/64");
 134 }
 135
 136 static void test_in_addr_random_prefix(void) {
 137         _cleanup_free_ char *str = NULL;
 138         union in_addr_union a;
 139
 140         assert_se(in_addr_from_string(AF_INET, "192.168.10.1", &a) >= 0);
 141
 142         assert_se(in_addr_random_prefix(AF_INET, &a, 31, 32) >= 0);
 143         assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
 144         assert_se(STR_IN_SET(str, "192.168.10.0", "192.168.10.1"));
 145         str = mfree(str);
 146
 147         assert_se(in_addr_random_prefix(AF_INET, &a, 24, 26) >= 0);
 148         assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
 149         assert_se(startswith(str, "192.168.10."));
 150         str = mfree(str);
 151
 152         assert_se(in_addr_random_prefix(AF_INET, &a, 16, 24) >= 0);
 153         assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
 154         assert_se(fnmatch("192.168.[0-9]*.0", str, 0) == 0);
 155         str = mfree(str);
 156
 157         assert_se(in_addr_random_prefix(AF_INET, &a, 8, 24) >= 0);
 158         assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
 159         assert_se(fnmatch("192.[0-9]*.[0-9]*.0", str, 0) == 0);
 160         str = mfree(str);
 161
 162         assert_se(in_addr_random_prefix(AF_INET, &a, 8, 16) >= 0);
 163         assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
 164         assert_se(fnmatch("192.[0-9]*.0.0", str, 0) == 0);
 165         str = mfree(str);
 166
 167         assert_se(in_addr_from_string(AF_INET6, "fd00::1", &a) >= 0);
 168
 169         assert_se(in_addr_random_prefix(AF_INET6, &a, 16, 64) >= 0);
 170         assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0);
 171         assert_se(startswith(str, "fd00:"));
 172         str = mfree(str);
 173
 174         assert_se(in_addr_random_prefix(AF_INET6, &a, 8, 16) >= 0);
 175         assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0);
 176         assert_se(fnmatch("fd??::", str, 0) == 0);
 177         str = mfree(str);
 178 }
 179
 180 int main(int argc, char *argv[]) {
 181         test_in_addr_prefix_from_string();
 182         test_in_addr_random_prefix();
 183         test_in_addr_prefix_to_string();
 184
 185         return 0;
 186 }