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-rw-r--r--src/test/test-in-addr-util.c345
1 files changed, 345 insertions, 0 deletions
diff --git a/src/test/test-in-addr-util.c b/src/test/test-in-addr-util.c
new file mode 100644
index 0000000..2b63645
--- /dev/null
+++ b/src/test/test-in-addr-util.c
@@ -0,0 +1,345 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <fnmatch.h>
+#include <netinet/in.h>
+
+#include "log.h"
+#include "strv.h"
+#include "in-addr-util.h"
+
+static void test_in_addr_prefix_from_string_one(
+ const char *p,
+ int family,
+ int ret,
+ const union in_addr_union *u,
+ unsigned char prefixlen,
+ int ret_refuse,
+ unsigned char prefixlen_refuse,
+ int ret_legacy,
+ unsigned char prefixlen_legacy) {
+
+ union in_addr_union q;
+ unsigned char l;
+ int f, r;
+
+ r = in_addr_prefix_from_string(p, family, &q, &l);
+ assert_se(r == ret);
+
+ if (r < 0)
+ return;
+
+ assert_se(in_addr_equal(family, &q, u));
+ assert_se(l == prefixlen);
+
+ r = in_addr_prefix_from_string_auto(p, &f, &q, &l);
+ assert_se(r >= 0);
+
+ assert_se(f == family);
+ assert_se(in_addr_equal(family, &q, u));
+ assert_se(l == prefixlen);
+
+ r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_REFUSE, &f, &q, &l);
+ assert_se(r == ret_refuse);
+
+ if (r >= 0) {
+ assert_se(f == family);
+ assert_se(in_addr_equal(family, &q, u));
+ assert_se(l == prefixlen_refuse);
+ }
+
+ r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_LEGACY, &f, &q, &l);
+ assert_se(r == ret_legacy);
+
+ if (r >= 0) {
+ assert_se(f == family);
+ assert_se(in_addr_equal(family, &q, u));
+ assert_se(l == prefixlen_legacy);
+ }
+}
+
+static void test_in_addr_prefix_from_string(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_from_string_one("", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ test_in_addr_prefix_from_string_one("/", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ test_in_addr_prefix_from_string_one("/8", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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);
+ test_in_addr_prefix_from_string_one("1.2.3.4/33", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
+ test_in_addr_prefix_from_string_one("1.2.3.4/-1", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
+ test_in_addr_prefix_from_string_one("::1", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+
+ test_in_addr_prefix_from_string_one("", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ test_in_addr_prefix_from_string_one("/", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ test_in_addr_prefix_from_string_one("/8", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0);
+ test_in_addr_prefix_from_string_one("::1", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 128, -ENOANO, 0, 0, 0);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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);
+ 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);
+ test_in_addr_prefix_from_string_one("::1/129", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
+ test_in_addr_prefix_from_string_one("::1/-1", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0);
+}
+
+static void test_in_addr_prefix_to_string_valid(int family, const char *p) {
+ _cleanup_free_ char *str = NULL;
+ union in_addr_union u;
+ unsigned char l;
+
+ log_info("%s: %s", __func__, p);
+
+ assert_se(in_addr_prefix_from_string(p, family, &u, &l) >= 0);
+ assert_se(in_addr_prefix_to_string(family, &u, l, &str) >= 0);
+ assert_se(streq(str, p));
+}
+
+static void test_in_addr_prefix_to_string_unoptimized(int family, const char *p) {
+ _cleanup_free_ char *str1 = NULL, *str2 = NULL;
+ union in_addr_union u1, u2;
+ unsigned char len1, len2;
+
+ log_info("%s: %s", __func__, p);
+
+ assert_se(in_addr_prefix_from_string(p, family, &u1, &len1) >= 0);
+ assert_se(in_addr_prefix_to_string(family, &u1, len1, &str1) >= 0);
+ assert_se(in_addr_prefix_from_string(str1, family, &u2, &len2) >= 0);
+ assert_se(in_addr_prefix_to_string(family, &u2, len2, &str2) >= 0);
+
+ assert_se(streq(str1, str2));
+ assert_se(len1 == len2);
+ assert_se(in_addr_equal(family, &u1, &u2) > 0);
+}
+
+static void test_in_addr_prefix_to_string(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_to_string_valid(AF_INET, "0.0.0.0/32");
+ test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/0");
+ test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/24");
+ test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/32");
+ test_in_addr_prefix_to_string_valid(AF_INET, "255.255.255.255/32");
+
+ test_in_addr_prefix_to_string_valid(AF_INET6, "::1/128");
+ test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1/64");
+ test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1234:1/64");
+ test_in_addr_prefix_to_string_valid(AF_INET6, "1111:2222:3333:4444:5555:6666:7777:8888/128");
+
+ test_in_addr_prefix_to_string_unoptimized(AF_INET, "0.0.0.0");
+ test_in_addr_prefix_to_string_unoptimized(AF_INET, "192.168.0.1");
+
+ test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:0000:0000:0000:0000:0000:0000:0001/64");
+ test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:1111::0000:2222:3333:4444:0001/64");
+}
+
+static void test_in_addr_random_prefix(void) {
+ _cleanup_free_ char *str = NULL;
+ union in_addr_union a;
+
+ log_info("/* %s */", __func__);
+
+ assert_se(in_addr_from_string(AF_INET, "192.168.10.1", &a) >= 0);
+
+ assert_se(in_addr_random_prefix(AF_INET, &a, 31, 32) >= 0);
+ assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
+ assert_se(STR_IN_SET(str, "192.168.10.0", "192.168.10.1"));
+ str = mfree(str);
+
+ assert_se(in_addr_random_prefix(AF_INET, &a, 24, 26) >= 0);
+ assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
+ assert_se(startswith(str, "192.168.10."));
+ str = mfree(str);
+
+ assert_se(in_addr_random_prefix(AF_INET, &a, 16, 24) >= 0);
+ assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
+ assert_se(fnmatch("192.168.[0-9]*.0", str, 0) == 0);
+ str = mfree(str);
+
+ assert_se(in_addr_random_prefix(AF_INET, &a, 8, 24) >= 0);
+ assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
+ assert_se(fnmatch("192.[0-9]*.[0-9]*.0", str, 0) == 0);
+ str = mfree(str);
+
+ assert_se(in_addr_random_prefix(AF_INET, &a, 8, 16) >= 0);
+ assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0);
+ assert_se(fnmatch("192.[0-9]*.0.0", str, 0) == 0);
+ str = mfree(str);
+
+ assert_se(in_addr_from_string(AF_INET6, "fd00::1", &a) >= 0);
+
+ assert_se(in_addr_random_prefix(AF_INET6, &a, 16, 64) >= 0);
+ assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0);
+ assert_se(startswith(str, "fd00:"));
+ str = mfree(str);
+
+ assert_se(in_addr_random_prefix(AF_INET6, &a, 8, 16) >= 0);
+ assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0);
+ assert_se(fnmatch("fd??::", str, 0) == 0);
+ str = mfree(str);
+}
+
+static void test_in_addr_is_null(void) {
+ union in_addr_union i = {};
+
+ log_info("/* %s */", __func__);
+
+ assert_se(in_addr_is_null(AF_INET, &i) == true);
+ assert_se(in_addr_is_null(AF_INET6, &i) == true);
+
+ i.in.s_addr = 0x1000000;
+ assert_se(in_addr_is_null(AF_INET, &i) == false);
+ assert_se(in_addr_is_null(AF_INET6, &i) == false);
+
+ assert_se(in_addr_is_null(-1, &i) == -EAFNOSUPPORT);
+}
+
+static void test_in_addr_prefix_intersect_one(unsigned f, const char *a, unsigned apl, const char *b, unsigned bpl, int result) {
+ union in_addr_union ua, ub;
+
+ assert_se(in_addr_from_string(f, a, &ua) >= 0);
+ assert_se(in_addr_from_string(f, b, &ub) >= 0);
+
+ assert_se(in_addr_prefix_intersect(f, &ua, apl, &ub, bpl) == result);
+}
+
+static void test_in_addr_prefix_intersect(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 32, "255.255.255.254", 32, 0);
+ test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 0, "255.255.255.255", 32, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "0.0.0.0", 0, "47.11.8.15", 32, 1);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.1", 24, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "2.2.2.2", 24, "1.1.1.1", 24, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 25, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 26, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.127", 25, 1);
+ test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.255", 25, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", 128, 0);
+ test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "::", 0, "beef:beef:beef:beef:beef:beef:beef:beef", 128, 1);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::2", 64, "1::2", 64, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "2::2", 64, "1::2", 64, 0);
+
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 121, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 122, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::007f", 121, 1);
+ test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::00ff", 121, 0);
+}
+
+static void test_in_addr_prefix_next_one(unsigned f, const char *before, unsigned pl, const char *after) {
+ union in_addr_union ubefore, uafter, t;
+
+ assert_se(in_addr_from_string(f, before, &ubefore) >= 0);
+
+ t = ubefore;
+ assert_se((in_addr_prefix_next(f, &t, pl) > 0) == !!after);
+
+ if (after) {
+ assert_se(in_addr_from_string(f, after, &uafter) >= 0);
+ assert_se(in_addr_equal(f, &t, &uafter) > 0);
+ }
+}
+
+static void test_in_addr_prefix_next(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 24, "192.168.1.0");
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 16, "192.169.0.0");
+ test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 20, "192.168.16.0");
+
+ test_in_addr_prefix_next_one(AF_INET, "0.0.0.0", 32, "0.0.0.1");
+ test_in_addr_prefix_next_one(AF_INET, "255.255.255.255", 32, NULL);
+ test_in_addr_prefix_next_one(AF_INET, "255.255.255.0", 24, NULL);
+
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 128, "4400::0001");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 120, "4400::0100");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 127, "4400::0002");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 8, "4500::");
+ test_in_addr_prefix_next_one(AF_INET6, "4400::", 7, "4600::");
+
+ test_in_addr_prefix_next_one(AF_INET6, "::", 128, "::1");
+
+ test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, NULL);
+ test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00", 120, NULL);
+}
+
+static void test_in_addr_prefix_nth_one(unsigned f, const char *before, unsigned pl, uint64_t nth, const char *after) {
+ union in_addr_union ubefore, uafter, t;
+
+ assert_se(in_addr_from_string(f, before, &ubefore) >= 0);
+
+ t = ubefore;
+ assert_se((in_addr_prefix_nth(f, &t, pl, nth) > 0) == !!after);
+
+ if (after) {
+ assert_se(in_addr_from_string(f, after, &uafter) >= 0);
+ assert_se(in_addr_equal(f, &t, &uafter) > 0);
+ }
+}
+
+static void test_in_addr_prefix_nth(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 24, 0, "192.168.0.0");
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 24, 1, "192.168.1.0");
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 24, 4, "192.168.4.0");
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 25, 1, "192.168.0.128");
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.255.0", 25, 1, "192.168.255.128");
+ test_in_addr_prefix_nth_one(AF_INET, "192.168.255.0", 24, 0, "192.168.255.0");
+ test_in_addr_prefix_nth_one(AF_INET, "255.255.255.255", 32, 1, NULL);
+ test_in_addr_prefix_nth_one(AF_INET, "255.255.255.255", 0, 1, NULL);
+
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 8, 1, "4500::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 7, 1, "4600::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 1, "4400:0:0:1::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 2, "4400:0:0:2::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 0xbad, "4400:0:0:0bad::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400:0:0:ffff::", 64, 1, "4400:0:1::");
+ test_in_addr_prefix_nth_one(AF_INET6, "4400::", 56, ((uint64_t)1<<48) -1, "44ff:ffff:ffff:ff00::");
+ test_in_addr_prefix_nth_one(AF_INET6, "0000::", 8, 255, "ff00::");
+ test_in_addr_prefix_nth_one(AF_INET6, "0000::", 8, 256, NULL);
+ test_in_addr_prefix_nth_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1, NULL);
+ test_in_addr_prefix_nth_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, 1, NULL);
+}
+
+static void test_in_addr_to_string_one(int f, const char *addr) {
+ union in_addr_union ua;
+ _cleanup_free_ char *r = NULL;
+
+ assert_se(in_addr_from_string(f, addr, &ua) >= 0);
+ assert_se(in_addr_to_string(f, &ua, &r) >= 0);
+ printf("test_in_addr_to_string_one: %s == %s\n", addr, r);
+ assert_se(streq(addr, r));
+}
+
+static void test_in_addr_to_string(void) {
+ log_info("/* %s */", __func__);
+
+ test_in_addr_to_string_one(AF_INET, "192.168.0.1");
+ test_in_addr_to_string_one(AF_INET, "10.11.12.13");
+ test_in_addr_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+ test_in_addr_to_string_one(AF_INET6, "::1");
+ test_in_addr_to_string_one(AF_INET6, "fe80::");
+}
+
+int main(int argc, char *argv[]) {
+ test_in_addr_prefix_from_string();
+ test_in_addr_random_prefix();
+ test_in_addr_prefix_to_string();
+ test_in_addr_is_null();
+ test_in_addr_prefix_intersect();
+ test_in_addr_prefix_next();
+ test_in_addr_prefix_nth();
+ test_in_addr_to_string();
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-01 02:52:39 +0000