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iodine/tests/common.c

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/*
* Copyright (c) 2006-2014 Erik Ekman <yarrick@kryo.se>,
* 2006-2009 Bjorn Andersson <flex@kryo.se>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <check.h>
#include <common.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netdb.h>
START_TEST(test_topdomain_ok)
{
char *error = NULL;
ck_assert(check_topdomain("foo.0123456789.qwertyuiop.asdfghjkl.zxcvbnm.com", 0, &error) == 0);
ck_assert(error == NULL);
/* Allowing wildcard */
ck_assert(check_topdomain("foo.0123456789.qwertyuiop.asdfghjkl.zxcvbnm.com", 1, &error) == 0);
ck_assert(error == NULL);
/* Not allowed to start with dot */
ck_assert(check_topdomain(".foo.0123456789.qwertyuiop.asdfghjkl.zxcvbnm.com", 0, &error));
ck_assert_str_eq("Starts with a dot", error);
/* Test missing error msg ptr */
ck_assert(check_topdomain(".foo", 0, NULL));
}
END_TEST
START_TEST(test_topdomain_length)
{
char *error;
/* Test empty and too short */
ck_assert(check_topdomain("", 0, &error));
ck_assert_str_eq("Too short (< 3)", error);
error = NULL;
ck_assert(check_topdomain("a", 0, &error));
ck_assert_str_eq("Too short (< 3)", error);
error = NULL;
ck_assert(check_topdomain(".a", 0, &error));
ck_assert_str_eq("Too short (< 3)", error);
error = NULL;
ck_assert(check_topdomain("a.", 0, &error));
ck_assert_str_eq("Too short (< 3)", error);
error = NULL;
ck_assert(check_topdomain("ab", 0, &error));
ck_assert_str_eq("Too short (< 3)", error);
error = NULL;
ck_assert(check_topdomain("a.b", 0, &error) == 0);
/* Test too long (over 128, need rest of space for data) */
ck_assert(check_topdomain(
"abcd12345.abcd12345.abcd12345.abcd12345.abcd12345."
"abcd12345.abcd12345.abcd12345.abcd12345.abcd12345."
"abcd12345.abcd12345.foo129xxx", 0, &error));
ck_assert_str_eq("Too long (> 128)", error);
ck_assert(check_topdomain(
"abcd12345.abcd12345.abcd12345.abcd12345.abcd12345."
"abcd12345.abcd12345.abcd12345.abcd12345.abcd12345."
"abcd12345.abcd12345.foo128xx", 0, &error) == 0);
}
END_TEST
START_TEST(test_topdomain_chunks)
{
char *error;
/* Must have at least one dot */
ck_assert(check_topdomain("abcde.gh", 0, &error) == 0);
ck_assert(check_topdomain("abcdefgh", 0, &error));
ck_assert_str_eq("No dots", error);
/* Not two consecutive dots */
ck_assert(check_topdomain("abc..defgh", 0, &error));
ck_assert_str_eq("Consecutive dots", error);
/* Not end with a dots */
ck_assert(check_topdomain("abc.defgh.", 0, &error));
ck_assert_str_eq("Ends with a dot", error);
/* No chunk longer than 63 chars */
ck_assert(check_topdomain("123456789012345678901234567890"
"123456789012345678901234567890333.com", 0, &error) == 0);
ck_assert(check_topdomain("123456789012345678901234567890"
"1234567890123456789012345678904444.com", 0, &error));
ck_assert_str_eq("Too long domain part (> 63)", error);
ck_assert(check_topdomain("abc.123456789012345678901234567890"
"123456789012345678901234567890333.com", 0, &error) == 0);
ck_assert(check_topdomain("abc.123456789012345678901234567890"
"1234567890123456789012345678904444.com", 0, &error));
ck_assert_str_eq("Too long domain part (> 63)", error);
ck_assert(check_topdomain("abc.123456789012345678901234567890"
"123456789012345678901234567890333", 0, &error) == 0);
ck_assert(check_topdomain("abc.123456789012345678901234567890"
"1234567890123456789012345678904444", 0, &error));
ck_assert_str_eq("Too long domain part (> 63)", error);
}
END_TEST
START_TEST(test_topdomain_wild)
{
char *error = NULL;
ck_assert(check_topdomain("*.a", 0, &error) == 1);
ck_assert_str_eq("Contains illegal character (allowed: [a-zA-Z0-9-.])", error);
error = NULL;
ck_assert(check_topdomain("*.a", 1, &error) == 0);
ck_assert(error == NULL);
ck_assert(check_topdomain("b*.a", 0, &error) == 1);
ck_assert_str_eq("Contains illegal character (allowed: [a-zA-Z0-9-.])", error);
error = NULL;
ck_assert(check_topdomain("b*.a", 1, &error) == 1);
ck_assert_str_eq("Wildcard (*) only allowed as first char", error);
ck_assert(check_topdomain("*b.a", 0, &error) == 1);
ck_assert_str_eq("Contains illegal character (allowed: [a-zA-Z0-9-.])", error);
error = NULL;
ck_assert(check_topdomain("*b.a", 1, &error) == 1);
ck_assert_str_eq("Wildcard (*) must be followed by dot", error);
ck_assert(check_topdomain("*.*.a", 0, &error) == 1);
ck_assert_str_eq("Contains illegal character (allowed: [a-zA-Z0-9-.])", error);
error = NULL;
ck_assert(check_topdomain("*.*.a", 1, &error) == 1);
ck_assert_str_eq("Wildcard (*) only allowed as first char", error);
}
END_TEST
START_TEST(test_query_datalen)
{
char *topdomain = "r.foo.com";
/* With data */
ck_assert(query_datalen("foobar.r.foo.com", topdomain) == 7);
ck_assert(query_datalen("foobar.r.FoO.Com", topdomain) == 7);
ck_assert(query_datalen("foo.bar.r.FoO.Com", topdomain) == 8);
ck_assert(query_datalen(".r.foo.com", topdomain) == 1);
/* Without data */
ck_assert(query_datalen("r.foo.com", topdomain) == 0);
ck_assert(query_datalen("R.foo.com", topdomain) == 0);
/* Shorter query name */
ck_assert(query_datalen("foo.com", topdomain) == -1);
/* Mismatched query name */
ck_assert(query_datalen("b.foo.com", topdomain) == -1);
ck_assert(query_datalen("*.foo.com", topdomain) == -1);
/* Query name overlaps topdomain, but is longer */
ck_assert(query_datalen("bar.foo.com", topdomain) == -1);
}
END_TEST
START_TEST(test_query_datalen_wild)
{
char *topdomain = "*.foo.com";
/* With data */
ck_assert(query_datalen("foobar.a.foo.com", topdomain) == 7);
ck_assert(query_datalen("foobar.r.FoO.Com", topdomain) == 7);
ck_assert(query_datalen("foo.bar.r.FoO.Com", topdomain) == 8);
ck_assert(query_datalen("foo.Ab.foo.cOm", topdomain) == 4);
ck_assert(query_datalen("foo.Abcd.Foo.com", topdomain) == 4);
ck_assert(query_datalen("***.STARs.foo.com", topdomain) == 4);
ck_assert(query_datalen(".a.foo.com", topdomain) == 1);
ck_assert(query_datalen(".ab.foo.com", topdomain) == 1);
/* Without data */
ck_assert(query_datalen("rr.foo.com", topdomain) == 0);
ck_assert(query_datalen("b.foo.com", topdomain) == 0);
ck_assert(query_datalen("B.foo.com", topdomain) == 0);
/* Shorter query name */
ck_assert(query_datalen("foo.com", topdomain) == -1);
/* Wildcard part of query name matching topdomain */
ck_assert(query_datalen("aa.*.foo.com", topdomain) == -1);
/* Mismatched query name */
ck_assert(query_datalen("bar.r.boo.com", topdomain) == -1);
}
END_TEST
START_TEST(test_parse_format_ipv4)
{
char *host = "192.168.2.10";
char *formatted;
struct sockaddr_storage addr;
struct sockaddr_in *v4addr;
int addr_len;
addr_len = get_addr(host, 53, AF_INET, 0, &addr);
ck_assert(addr_len == sizeof(struct sockaddr_in));
v4addr = (struct sockaddr_in *) &addr;
ck_assert(v4addr->sin_addr.s_addr == htonl(0xc0a8020a));
ck_assert(v4addr->sin_port == htons(53));
formatted = format_addr(&addr, addr_len);
ck_assert_str_eq(host, formatted);
}
END_TEST
START_TEST(test_parse_format_ipv4_listen_all)
{
char *host = "0.0.0.0";
char *formatted;
struct sockaddr_storage addr;
struct sockaddr_in *v4addr;
int addr_len;
addr_len = get_addr(NULL, 53, AF_INET, AI_PASSIVE, &addr);
ck_assert(addr_len == sizeof(struct sockaddr_in));
v4addr = (struct sockaddr_in *) &addr;
ck_assert(v4addr->sin_addr.s_addr == htonl(0x00000000));
ck_assert(v4addr->sin_port == htons(53));
formatted = format_addr(&addr, addr_len);
ck_assert_str_eq(host, formatted);
}
END_TEST
START_TEST(test_parse_format_ipv6)
{
char *host = "2001:0db8:0505:0::123:0abc";
char *compact = "2001:db8:505::123:abc";
unsigned char v6_bits[] = {
0x20, 0x01, 0x0d, 0xb8, 0x05, 0x05, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x23, 0x0a, 0xbc,
};
char *formatted;
struct sockaddr_storage addr;
struct sockaddr_in6 *v6addr;
int addr_len;
addr_len = get_addr(host, 53, AF_UNSPEC, 0, &addr);
ck_assert(addr_len == sizeof(struct sockaddr_in6));
v6addr = (struct sockaddr_in6 *) &addr;
ck_assert(memcmp(&v6addr->sin6_addr, v6_bits, sizeof(v6_bits)) == 0);
ck_assert(v6addr->sin6_port == htons(53));
formatted = format_addr(&addr, addr_len);
ck_assert_str_eq(compact, formatted);
}
END_TEST
START_TEST(test_parse_format_ipv4_mapped_ipv6)
{
char *v4mapped = "::FFFF:192.168.2.10";
char *host = "192.168.2.10";
unsigned char v6_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xff, 0xff, 0xc0, 0xa8, 0x02, 0x0a,
};
char *formatted;
struct sockaddr_storage addr;
struct sockaddr_in6 *v6addr;
int addr_len;
addr_len = get_addr(v4mapped, 53, AF_INET6, 0, &addr);
ck_assert(addr_len == sizeof(struct sockaddr_in6));
v6addr = (struct sockaddr_in6 *) &addr;
ck_assert(memcmp(&v6addr->sin6_addr, v6_bits, sizeof(v6_bits)) == 0);
ck_assert(v6addr->sin6_port == htons(53));
/* Format as IPv4 address */
formatted = format_addr(&addr, addr_len);
ck_assert_str_eq(host, formatted);
}
END_TEST
TCase *
test_common_create_tests()
{
TCase *tc;
int sock;
tc = tcase_create("Common");
tcase_add_test(tc, test_topdomain_ok);
tcase_add_test(tc, test_topdomain_length);
tcase_add_test(tc, test_topdomain_chunks);
tcase_add_test(tc, test_topdomain_wild);
tcase_add_test(tc, test_query_datalen);
tcase_add_test(tc, test_query_datalen_wild);
tcase_add_test(tc, test_parse_format_ipv4);
tcase_add_test(tc, test_parse_format_ipv4_listen_all);
/* Tests require IPv6 support */
sock = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
if (sock >= 0) {
close(sock);
tcase_add_test(tc, test_parse_format_ipv6);
tcase_add_test(tc, test_parse_format_ipv4_mapped_ipv6);
}
return tc;
}
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