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tor/src/test/test_addr.c
Nick Mathewson a2c44a7a7e Isolate resolve.h usage in the modules that really need it. 
(Almost none of Tor should actually need to touch the platform resolver.)
2018-07-10 13:36:45 -04:00

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/* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#define ADDRESSMAP_PRIVATE
#include "orconfig.h"
#include "core/or/or.h"
#include "lib/crypt_ops/crypto_rand.h"
#include "test/test.h"
#include "feature/client/addressmap.h"
#include "test/log_test_helpers.h"
#include "lib/net/resolve.h"
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif
static void
test_addr_basic(void *arg)
{
(void) arg;
tt_int_op(0,OP_EQ, addr_mask_get_bits(0x0u));
tt_int_op(32,OP_EQ, addr_mask_get_bits(0xFFFFFFFFu));
tt_int_op(16,OP_EQ, addr_mask_get_bits(0xFFFF0000u));
tt_int_op(31,OP_EQ, addr_mask_get_bits(0xFFFFFFFEu));
tt_int_op(1,OP_EQ, addr_mask_get_bits(0x80000000u));
/* Test inet_ntop */
{
char tmpbuf[TOR_ADDR_BUF_LEN];
const char *ip = "176.192.208.224";
struct in_addr in;
/* good round trip */
tt_int_op(tor_inet_pton(AF_INET, ip, &in), OP_EQ, 1);
tt_ptr_op(tor_inet_ntop(AF_INET, &in, tmpbuf, sizeof(tmpbuf)),
OP_EQ, &tmpbuf);
tt_str_op(tmpbuf,OP_EQ, ip);
/* just enough buffer length */
tt_str_op(tor_inet_ntop(AF_INET, &in, tmpbuf, strlen(ip) + 1), OP_EQ, ip);
/* too short buffer */
tt_ptr_op(tor_inet_ntop(AF_INET, &in, tmpbuf, strlen(ip)),OP_EQ, NULL);
}
done:
;
}
#define test_op_ip6_(a,op,b,e1,e2) \
STMT_BEGIN \
tt_assert_test_fmt_type(a,b,e1" "#op" "e2,struct in6_addr*, \
(fast_memcmp(val1_->s6_addr, val2_->s6_addr, 16) op 0), \
char *, "%s", \
{ char *cp; \
cp = print_ = tor_malloc(64); \
for (int ii_=0;ii_<16;++ii_) { \
tor_snprintf(cp, 3,"%02x", (unsigned)value_->s6_addr[ii_]); \
cp += 2; \
if (ii_ != 15) *cp++ = ':'; \
} \
}, \
{ tor_free(print_); }, \
TT_EXIT_TEST_FUNCTION \
); \
STMT_END
/** Helper: Assert that two strings both decode as IPv6 addresses with
* tor_inet_pton(), and both decode to the same address. */
#define test_pton6_same(a,b) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &a1), OP_EQ, 1); \
tt_int_op(tor_inet_pton(AF_INET6, b, &a2), OP_EQ, 1); \
test_op_ip6_(&a1,OP_EQ,&a2,#a,#b); \
STMT_END
/** Helper: Assert that <b>a</b> is recognized as a bad IPv6 address by
* tor_inet_pton(). */
#define test_pton6_bad(a) \
tt_int_op(0, OP_EQ, tor_inet_pton(AF_INET6, a, &a1))
/** Helper: assert that <b>a</b>, when parsed by tor_inet_pton() and displayed
* with tor_inet_ntop(), yields <b>b</b>. Also assert that <b>b</b> parses to
* the same value as <b>a</b>. */
#define test_ntop6_reduces(a,b) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &a1), OP_EQ, 1); \
tt_str_op(tor_inet_ntop(AF_INET6, &a1, buf, sizeof(buf)), OP_EQ, b); \
tt_int_op(tor_inet_pton(AF_INET6, b, &a2), OP_EQ, 1); \
test_op_ip6_(&a1, OP_EQ, &a2, a, b); \
STMT_END
/** Helper: assert that <b>a</b> parses by tor_inet_pton() into a address that
* passes tor_addr_is_internal() with <b>for_listening</b>. */
#define test_internal_ip(a,for_listening) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), OP_EQ, 1); \
t1.family = AF_INET6; \
if (!tor_addr_is_internal(&t1, for_listening)) \
TT_DIE(("%s was not internal", a)); \
STMT_END
/** Helper: assert that <b>a</b> parses by tor_inet_pton() into a address that
* does not pass tor_addr_is_internal() with <b>for_listening</b>. */
#define test_external_ip(a,for_listening) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), OP_EQ, 1); \
t1.family = AF_INET6; \
if (tor_addr_is_internal(&t1, for_listening)) \
TT_DIE(("%s was not internal", a)); \
STMT_END
/** Helper: Assert that <b>a</b> and <b>b</b>, when parsed by
* tor_inet_pton(), give addresses that compare in the order defined by
* <b>op</b> with tor_addr_compare(). */
#define test_addr_compare(a, op, b) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), OP_EQ, 1); \
tt_int_op(tor_inet_pton(AF_INET6, b, &t2.addr.in6_addr), OP_EQ, 1); \
t1.family = t2.family = AF_INET6; \
r = tor_addr_compare(&t1,&t2,CMP_SEMANTIC); \
if (!(r op 0)) \
TT_DIE(("Failed: tor_addr_compare(%s,%s) %s 0", a, b, #op));\
STMT_END
/** Helper: Assert that <b>a</b> and <b>b</b>, when parsed by
* tor_inet_pton(), give addresses that compare in the order defined by
* <b>op</b> with tor_addr_compare_masked() with <b>m</b> masked. */
#define test_addr_compare_masked(a, op, b, m) STMT_BEGIN \
tt_int_op(tor_inet_pton(AF_INET6, a, &t1.addr.in6_addr), OP_EQ, 1); \
tt_int_op(tor_inet_pton(AF_INET6, b, &t2.addr.in6_addr), OP_EQ, 1); \
t1.family = t2.family = AF_INET6; \
r = tor_addr_compare_masked(&t1,&t2,m,CMP_SEMANTIC); \
if (!(r op 0)) \
TT_DIE(("Failed: tor_addr_compare_masked(%s,%s,%d) %s 0", \
a, b, m, #op)); \
STMT_END
/** Helper: assert that <b>xx</b> is parseable as a masked IPv6 address with
* ports by tor_parse_mask_addr_ports(), with family <b>f</b>, IP address
* as 4 32-bit words <b>ip1...ip4</b>, mask bits as <b>mm</b>, and port range
* as <b>pt1..pt2</b>. */
#define test_addr_mask_ports_parse(xx, f, ip1, ip2, ip3, ip4, mm, pt1, pt2) \
STMT_BEGIN \
tt_int_op(tor_addr_parse_mask_ports(xx, 0, &t1, &mask, &port1, &port2), \
OP_EQ, f); \
p1=tor_inet_ntop(AF_INET6, &t1.addr.in6_addr, bug, sizeof(bug)); \
tt_int_op(htonl(ip1), OP_EQ, tor_addr_to_in6_addr32(&t1)[0]); \
tt_int_op(htonl(ip2), OP_EQ, tor_addr_to_in6_addr32(&t1)[1]); \
tt_int_op(htonl(ip3), OP_EQ, tor_addr_to_in6_addr32(&t1)[2]); \
tt_int_op(htonl(ip4), OP_EQ, tor_addr_to_in6_addr32(&t1)[3]); \
tt_int_op(mask, OP_EQ, mm); \
tt_uint_op(port1, OP_EQ, pt1); \
tt_uint_op(port2, OP_EQ, pt2); \
STMT_END
/** Run unit tests for IPv6 encoding/decoding/manipulation functions. */
static void
test_addr_ip6_helpers(void *arg)
{
char buf[TOR_ADDR_BUF_LEN], bug[TOR_ADDR_BUF_LEN];
char rbuf[REVERSE_LOOKUP_NAME_BUF_LEN];
struct in6_addr a1, a2;
tor_addr_t t1, t2;
int r, i;
uint16_t port1, port2;
maskbits_t mask;
const char *p1;
struct sockaddr_storage sa_storage;
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
/* Test tor_inet_ntop and tor_inet_pton: IPv6 */
(void)arg;
{
const char *ip = "2001::1234";
const char *ip_ffff = "::ffff:192.168.1.2";
/* good round trip */
tt_int_op(tor_inet_pton(AF_INET6, ip, &a1),OP_EQ, 1);
tt_ptr_op(tor_inet_ntop(AF_INET6, &a1, buf, sizeof(buf)),OP_EQ, &buf);
tt_str_op(buf,OP_EQ, ip);
/* good round trip - ::ffff:0:0 style */
tt_int_op(tor_inet_pton(AF_INET6, ip_ffff, &a2),OP_EQ, 1);
tt_ptr_op(tor_inet_ntop(AF_INET6, &a2, buf, sizeof(buf)),OP_EQ, &buf);
tt_str_op(buf,OP_EQ, ip_ffff);
/* just long enough buffer (remember \0) */
tt_str_op(tor_inet_ntop(AF_INET6, &a1, buf, strlen(ip)+1),OP_EQ, ip);
tt_str_op(tor_inet_ntop(AF_INET6, &a2, buf, strlen(ip_ffff)+1),OP_EQ,
ip_ffff);
/* too short buffer (remember \0) */
tt_ptr_op(tor_inet_ntop(AF_INET6, &a1, buf, strlen(ip)),OP_EQ, NULL);
tt_ptr_op(tor_inet_ntop(AF_INET6, &a2, buf, strlen(ip_ffff)),OP_EQ, NULL);
}
/* ==== Converting to and from sockaddr_t. */
sin = (struct sockaddr_in *)&sa_storage;
sin->sin_family = AF_INET;
sin->sin_port = htons(9090);
sin->sin_addr.s_addr = htonl(0x7f7f0102); /*127.127.1.2*/
tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin, &port1);
tt_int_op(tor_addr_family(&t1),OP_EQ, AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ, 0x7f7f0102);
tt_int_op(port1, OP_EQ, 9090);
memset(&sa_storage, 0, sizeof(sa_storage));
tt_int_op(sizeof(struct sockaddr_in),OP_EQ,
tor_addr_to_sockaddr(&t1, 1234, (struct sockaddr *)&sa_storage,
sizeof(sa_storage)));
tt_int_op(1234,OP_EQ, ntohs(sin->sin_port));
tt_int_op(0x7f7f0102,OP_EQ, ntohl(sin->sin_addr.s_addr));
memset(&sa_storage, 0, sizeof(sa_storage));
sin6 = (struct sockaddr_in6 *)&sa_storage;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = htons(7070);
sin6->sin6_addr.s6_addr[0] = 128;
tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin6, &port1);
tt_int_op(tor_addr_family(&t1),OP_EQ, AF_INET6);
tt_int_op(port1, OP_EQ, 7070);
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 0);
tt_str_op(p1,OP_EQ, "8000::");
memset(&sa_storage, 0, sizeof(sa_storage));
tt_int_op(sizeof(struct sockaddr_in6),OP_EQ,
tor_addr_to_sockaddr(&t1, 9999, (struct sockaddr *)&sa_storage,
sizeof(sa_storage)));
tt_int_op(AF_INET6,OP_EQ, sin6->sin6_family);
tt_int_op(9999,OP_EQ, ntohs(sin6->sin6_port));
tt_int_op(0x80000000,OP_EQ, ntohl(S6_ADDR32(sin6->sin6_addr)[0]));
/* ==== tor_addr_lookup: static cases. (Can't test dns without knowing we
* have a good resolver. */
tt_int_op(0,OP_EQ, tor_addr_lookup("127.128.129.130", AF_UNSPEC, &t1));
tt_int_op(AF_INET,OP_EQ, tor_addr_family(&t1));
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ, 0x7f808182);
tt_int_op(0,OP_EQ, tor_addr_lookup("9000::5", AF_UNSPEC, &t1));
tt_int_op(AF_INET6,OP_EQ, tor_addr_family(&t1));
tt_int_op(0x90,OP_EQ, tor_addr_to_in6_addr8(&t1)[0]);
tt_assert(tor_mem_is_zero((char*)tor_addr_to_in6_addr8(&t1)+1, 14));
tt_int_op(0x05,OP_EQ, tor_addr_to_in6_addr8(&t1)[15]);
/* === Test pton: valid af_inet6 */
/* Simple, valid parsing. */
r = tor_inet_pton(AF_INET6,
"0102:0304:0506:0708:090A:0B0C:0D0E:0F10", &a1);
tt_int_op(r, OP_EQ, 1);
for (i=0;i<16;++i) { tt_int_op(i+1,OP_EQ, (int)a1.s6_addr[i]); }
/* ipv4 ending. */
test_pton6_same("0102:0304:0506:0708:090A:0B0C:0D0E:0F10",
"0102:0304:0506:0708:090A:0B0C:13.14.15.16");
/* shortened words. */
test_pton6_same("0001:0099:BEEF:0000:0123:FFFF:0001:0001",
"1:99:BEEF:0:0123:FFFF:1:1");
/* zeros at the beginning */
test_pton6_same("0000:0000:0000:0000:0009:C0A8:0001:0001",
"::9:c0a8:1:1");
test_pton6_same("0000:0000:0000:0000:0009:C0A8:0001:0001",
"::9:c0a8:0.1.0.1");
/* zeros in the middle. */
test_pton6_same("fe80:0000:0000:0000:0202:1111:0001:0001",
"fe80::202:1111:1:1");
/* zeros at the end. */
test_pton6_same("1000:0001:0000:0007:0000:0000:0000:0000",
"1000:1:0:7::");
/* === Test ntop: af_inet6 */
test_ntop6_reduces("0:0:0:0:0:0:0:0", "::");
test_ntop6_reduces("0001:0099:BEEF:0006:0123:FFFF:0001:0001",
"1:99:beef:6:123:ffff:1:1");
//test_ntop6_reduces("0:0:0:0:0:0:c0a8:0101", "::192.168.1.1");
test_ntop6_reduces("0:0:0:0:0:ffff:c0a8:0101", "::ffff:192.168.1.1");
test_ntop6_reduces("0:0:0:0:0:0:c0a8:0101", "::192.168.1.1");
test_ntop6_reduces("002:0:0000:0:3::4", "2::3:0:0:4");
test_ntop6_reduces("0:0::1:0:3", "::1:0:3");
test_ntop6_reduces("008:0::0", "8::");
test_ntop6_reduces("0:0:0:0:0:ffff::1", "::ffff:0.0.0.1");
test_ntop6_reduces("abcd:0:0:0:0:0:7f00::", "abcd::7f00:0");
test_ntop6_reduces("0000:0000:0000:0000:0009:C0A8:0001:0001",
"::9:c0a8:1:1");
test_ntop6_reduces("fe80:0000:0000:0000:0202:1111:0001:0001",
"fe80::202:1111:1:1");
test_ntop6_reduces("1000:0001:0000:0007:0000:0000:0000:0000",
"1000:1:0:7::");
/* Bad af param */
tt_int_op(tor_inet_pton(AF_UNSPEC, 0, 0),OP_EQ, -1);
/* === Test pton: invalid in6. */
test_pton6_bad("foobar.");
test_pton6_bad("-1::");
test_pton6_bad("00001::");
test_pton6_bad("10000::");
test_pton6_bad("::10000");
test_pton6_bad("55555::");
test_pton6_bad("9:-60::");
test_pton6_bad("9:+60::");
test_pton6_bad("9|60::");
test_pton6_bad("0x60::");
test_pton6_bad("::0x60");
test_pton6_bad("9:0x60::");
test_pton6_bad("1:2:33333:4:0002:3::");
test_pton6_bad("1:2:3333:4:fish:3::");
test_pton6_bad("1:2:3:4:5:6:7:8:9");
test_pton6_bad("1:2:3:4:5:6:7");
test_pton6_bad("1:2:3:4:5:6:1.2.3.4.5");
test_pton6_bad("1:2:3:4:5:6:1.2.3");
test_pton6_bad("::1.2.3");
test_pton6_bad("::1.2.3.4.5");
test_pton6_bad("::ffff:0xff.0.0.0");
test_pton6_bad("::ffff:ff.0.0.0");
test_pton6_bad("::ffff:256.0.0.0");
test_pton6_bad("::ffff:-1.0.0.0");
test_pton6_bad("99");
test_pton6_bad("");
test_pton6_bad(".");
test_pton6_bad(":");
test_pton6_bad("1::2::3:4");
test_pton6_bad("a:::b:c");
test_pton6_bad(":::a:b:c");
test_pton6_bad("a:b:c:::");
test_pton6_bad("1.2.3.4");
test_pton6_bad(":1.2.3.4");
test_pton6_bad(".2.3.4");
/* Regression tests for 22789. */
test_pton6_bad("0xfoo");
test_pton6_bad("0x88");
test_pton6_bad("0xyxxy");
test_pton6_bad("0XFOO");
test_pton6_bad("0X88");
test_pton6_bad("0XYXXY");
test_pton6_bad("0x");
test_pton6_bad("0X");
/* test internal checking */
test_external_ip("fbff:ffff::2:7", 0);
test_internal_ip("fc01::2:7", 0);
test_internal_ip("fc01::02:7", 0);
test_internal_ip("fc01::002:7", 0);
test_internal_ip("fc01::0002:7", 0);
test_internal_ip("fdff:ffff::f:f", 0);
test_external_ip("fe00::3:f", 0);
test_external_ip("fe7f:ffff::2:7", 0);
test_internal_ip("fe80::2:7", 0);
test_internal_ip("febf:ffff::f:f", 0);
test_internal_ip("fec0::2:7:7", 0);
test_internal_ip("feff:ffff::e:7:7", 0);
test_external_ip("ff00::e:7:7", 0);
test_internal_ip("::", 0);
test_internal_ip("::1", 0);
test_internal_ip("::1", 1);
test_internal_ip("::", 0);
test_external_ip("::", 1);
test_external_ip("::2", 0);
test_external_ip("2001::", 0);
test_external_ip("ffff::", 0);
test_external_ip("::ffff:0.0.0.0", 1);
test_internal_ip("::ffff:0.0.0.0", 0);
test_internal_ip("::ffff:0.255.255.255", 0);
test_external_ip("::ffff:1.0.0.0", 0);
test_external_ip("::ffff:9.255.255.255", 0);
test_internal_ip("::ffff:10.0.0.0", 0);
test_internal_ip("::ffff:10.255.255.255", 0);
test_external_ip("::ffff:11.0.0.0", 0);
test_external_ip("::ffff:126.255.255.255", 0);
test_internal_ip("::ffff:127.0.0.0", 0);
test_internal_ip("::ffff:127.255.255.255", 0);
test_external_ip("::ffff:128.0.0.0", 0);
test_external_ip("::ffff:172.15.255.255", 0);
test_internal_ip("::ffff:172.16.0.0", 0);
test_internal_ip("::ffff:172.31.255.255", 0);
test_external_ip("::ffff:172.32.0.0", 0);
test_external_ip("::ffff:192.167.255.255", 0);
test_internal_ip("::ffff:192.168.0.0", 0);
test_internal_ip("::ffff:192.168.255.255", 0);
test_external_ip("::ffff:192.169.0.0", 0);
test_external_ip("::ffff:169.253.255.255", 0);
test_internal_ip("::ffff:169.254.0.0", 0);
test_internal_ip("::ffff:169.254.255.255", 0);
test_external_ip("::ffff:169.255.0.0", 0);
/* tor_addr_compare(tor_addr_t x2) */
test_addr_compare("ffff::", OP_EQ, "ffff::0");
test_addr_compare("0::3:2:1", OP_LT, "0::ffff:0.3.2.1");
test_addr_compare("0::2:2:1", OP_LT, "0::ffff:0.3.2.1");
test_addr_compare("0::ffff:0.3.2.1", OP_GT, "0::0:0:0");
test_addr_compare("0::ffff:5.2.2.1", OP_LT,
"::ffff:6.0.0.0"); /* XXXX wrong. */
tor_addr_parse_mask_ports("[::ffff:2.3.4.5]", 0, &t1, NULL, NULL, NULL);
tor_addr_parse_mask_ports("2.3.4.5", 0, &t2, NULL, NULL, NULL);
tt_int_op(tor_addr_compare(&t1, &t2, CMP_SEMANTIC), OP_EQ, 0);
tor_addr_parse_mask_ports("[::ffff:2.3.4.4]", 0, &t1, NULL, NULL, NULL);
tor_addr_parse_mask_ports("2.3.4.5", 0, &t2, NULL, NULL, NULL);
tt_int_op(tor_addr_compare(&t1, &t2, CMP_SEMANTIC), OP_LT, 0);
/* test compare_masked */
test_addr_compare_masked("ffff::", OP_EQ, "ffff::0", 128);
test_addr_compare_masked("ffff::", OP_EQ, "ffff::0", 64);
test_addr_compare_masked("0::2:2:1", OP_LT, "0::8000:2:1", 81);
test_addr_compare_masked("0::2:2:1", OP_EQ, "0::8000:2:1", 80);
/* Test undecorated tor_addr_to_str */
tt_int_op(AF_INET6,OP_EQ, tor_addr_parse(&t1, "[123:45:6789::5005:11]"));
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 0);
tt_str_op(p1,OP_EQ, "123:45:6789::5005:11");
tt_int_op(AF_INET,OP_EQ, tor_addr_parse(&t1, "18.0.0.1"));
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 0);
tt_str_op(p1,OP_EQ, "18.0.0.1");
/* Test decorated tor_addr_to_str */
tt_int_op(AF_INET6,OP_EQ, tor_addr_parse(&t1, "[123:45:6789::5005:11]"));
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 1);
tt_str_op(p1,OP_EQ, "[123:45:6789::5005:11]");
tt_int_op(AF_INET,OP_EQ, tor_addr_parse(&t1, "18.0.0.1"));
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 1);
tt_str_op(p1,OP_EQ, "18.0.0.1");
/* Test buffer bounds checking of tor_addr_to_str */
tt_int_op(AF_INET6,OP_EQ, tor_addr_parse(&t1, "::")); /* 2 + \0 */
tt_ptr_op(tor_addr_to_str(buf, &t1, 2, 0),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 3, 0),OP_EQ, "::");
tt_ptr_op(tor_addr_to_str(buf, &t1, 4, 1),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 5, 1),OP_EQ, "[::]");
tt_int_op(AF_INET6,OP_EQ, tor_addr_parse(&t1, "2000::1337")); /* 10 + \0 */
tt_ptr_op(tor_addr_to_str(buf, &t1, 10, 0),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 11, 0),OP_EQ, "2000::1337");
tt_ptr_op(tor_addr_to_str(buf, &t1, 12, 1),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 13, 1),OP_EQ, "[2000::1337]");
tt_int_op(AF_INET,OP_EQ, tor_addr_parse(&t1, "1.2.3.4")); /* 7 + \0 */
tt_ptr_op(tor_addr_to_str(buf, &t1, 7, 0),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 8, 0),OP_EQ, "1.2.3.4");
tt_int_op(AF_INET, OP_EQ,
tor_addr_parse(&t1, "255.255.255.255")); /* 15 + \0 */
tt_ptr_op(tor_addr_to_str(buf, &t1, 15, 0),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 16, 0),OP_EQ, "255.255.255.255");
tt_ptr_op(tor_addr_to_str(buf, &t1, 15, 1),OP_EQ, NULL); /* too short buf */
tt_str_op(tor_addr_to_str(buf, &t1, 16, 1),OP_EQ, "255.255.255.255");
t1.family = AF_UNSPEC;
tt_ptr_op(tor_addr_to_str(buf, &t1, sizeof(buf), 0),OP_EQ, NULL);
/* Test tor_addr_parse_PTR_name */
i = tor_addr_parse_PTR_name(&t1, "Foobar.baz", AF_UNSPEC, 0);
tt_int_op(0,OP_EQ, i);
i = tor_addr_parse_PTR_name(&t1, "Foobar.baz", AF_UNSPEC, 1);
tt_int_op(0,OP_EQ, i);
i = tor_addr_parse_PTR_name(&t1, "9999999999999999999999999999.in-addr.arpa",
AF_UNSPEC, 1);
tt_int_op(-1,OP_EQ, i);
i = tor_addr_parse_PTR_name(&t1, "1.0.168.192.in-addr.arpa",
AF_UNSPEC, 1);
tt_int_op(1,OP_EQ, i);
tt_int_op(tor_addr_family(&t1),OP_EQ, AF_INET);
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 1);
tt_str_op(p1,OP_EQ, "192.168.0.1");
i = tor_addr_parse_PTR_name(&t1, "192.168.0.99", AF_UNSPEC, 0);
tt_int_op(0,OP_EQ, i);
i = tor_addr_parse_PTR_name(&t1, "192.168.0.99", AF_UNSPEC, 1);
tt_int_op(1,OP_EQ, i);
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 1);
tt_str_op(p1,OP_EQ, "192.168.0.99");
memset(&t1, 0, sizeof(t1));
i = tor_addr_parse_PTR_name(&t1,
"0.1.2.3.4.5.6.7.8.9.a.b.c.d.e.f."
"f.e.e.b.1.e.b.e.e.f.f.e.e.e.d.9."
"ip6.ARPA",
AF_UNSPEC, 0);
tt_int_op(1,OP_EQ, i);
p1 = tor_addr_to_str(buf, &t1, sizeof(buf), 1);
tt_str_op(p1,OP_EQ, "[9dee:effe:ebe1:beef:fedc:ba98:7654:3210]");
/* Failing cases. */
i = tor_addr_parse_PTR_name(&t1,
"6.7.8.9.a.b.c.d.e.f."
"f.e.e.b.1.e.b.e.e.f.f.e.e.e.d.9."
"ip6.ARPA",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1,
"6.7.8.9.a.b.c.d.e.f.a.b.c.d.e.f.0."
"f.e.e.b.1.e.b.e.e.f.f.e.e.e.d.9."
"ip6.ARPA",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1,
"6.7.8.9.a.b.c.d.e.f.X.0.0.0.0.9."
"f.e.e.b.1.e.b.e.e.f.f.e.e.e.d.9."
"ip6.ARPA",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1, "32.1.1.in-addr.arpa",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1, ".in-addr.arpa",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1, "1.2.3.4.5.in-addr.arpa",
AF_UNSPEC, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1, "1.2.3.4.5.in-addr.arpa",
AF_INET6, 0);
tt_int_op(i,OP_EQ, -1);
i = tor_addr_parse_PTR_name(&t1,
"6.7.8.9.a.b.c.d.e.f.a.b.c.d.e.0."
"f.e.e.b.1.e.b.e.e.f.f.e.e.e.d.9."
"ip6.ARPA",
AF_INET, 0);
tt_int_op(i,OP_EQ, -1);
/* === Test tor_addr_to_PTR_name */
/* Stage IPv4 addr */
memset(&sa_storage, 0, sizeof(sa_storage));
sin = (struct sockaddr_in *)&sa_storage;
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = htonl(0x7f010203); /* 127.1.2.3 */
tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin, NULL);
/* Check IPv4 PTR - too short buffer */
tt_int_op(tor_addr_to_PTR_name(rbuf, 1, &t1),OP_EQ, -1);
tt_int_op(tor_addr_to_PTR_name(rbuf,
strlen("3.2.1.127.in-addr.arpa") - 1,
&t1),OP_EQ, -1);
/* Check IPv4 PTR - valid addr */
tt_int_op(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1),OP_EQ,
strlen("3.2.1.127.in-addr.arpa"));
tt_str_op(rbuf,OP_EQ, "3.2.1.127.in-addr.arpa");
/* Invalid addr family */
t1.family = AF_UNSPEC;
tt_int_op(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1),OP_EQ, -1);
/* Stage IPv6 addr */
memset(&sa_storage, 0, sizeof(sa_storage));
sin6 = (struct sockaddr_in6 *)&sa_storage;
sin6->sin6_family = AF_INET6;
sin6->sin6_addr.s6_addr[0] = 0x80; /* 8000::abcd */
sin6->sin6_addr.s6_addr[14] = 0xab;
sin6->sin6_addr.s6_addr[15] = 0xcd;
tor_addr_from_sockaddr(&t1, (struct sockaddr *)sin6, NULL);
{
const char* addr_PTR = "d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0."
"0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.ip6.arpa";
/* Check IPv6 PTR - too short buffer */
tt_int_op(tor_addr_to_PTR_name(rbuf, 0, &t1),OP_EQ, -1);
tt_int_op(tor_addr_to_PTR_name(rbuf, strlen(addr_PTR) - 1, &t1),OP_EQ, -1);
/* Check IPv6 PTR - valid addr */
tt_int_op(tor_addr_to_PTR_name(rbuf, sizeof(rbuf), &t1),OP_EQ,
strlen(addr_PTR));
tt_str_op(rbuf,OP_EQ, addr_PTR);
}
/* XXXX turn this into a separate function; it's not all IPv6. */
/* test tor_addr_parse_mask_ports */
test_addr_mask_ports_parse("[::f]/17:47-95", AF_INET6,
0, 0, 0, 0x0000000f, 17, 47, 95);
tt_str_op(p1,OP_EQ, "::f");
//test_addr_parse("[::fefe:4.1.1.7/120]:999-1000");
//test_addr_parse_check("::fefe:401:107", 120, 999, 1000);
test_addr_mask_ports_parse("[::ffff:4.1.1.7]/120:443", AF_INET6,
0, 0, 0x0000ffff, 0x04010107, 120, 443, 443);
tt_str_op(p1,OP_EQ, "::ffff:4.1.1.7");
test_addr_mask_ports_parse("[abcd:2::44a:0]:2-65000", AF_INET6,
0xabcd0002, 0, 0, 0x044a0000, 128, 2, 65000);
tt_str_op(p1,OP_EQ, "abcd:2::44a:0");
/* Try some long addresses. */
r=tor_addr_parse_mask_ports("[ffff:1111:1111:1111:1111:1111:1111:1111]",
0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, AF_INET6);
r=tor_addr_parse_mask_ports("[ffff:1111:1111:1111:1111:1111:1111:11111]",
0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[ffff:1111:1111:1111:1111:1111:1111:1111:1]",
0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports(
"[ffff:1111:1111:1111:1111:1111:1111:ffff:"
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:"
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:"
"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff]",
0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
/* Try some failing cases. */
r=tor_addr_parse_mask_ports("[fefef::]/112", 0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[fefe::/112", 0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[fefe::", 0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[fefe::X]", 0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("efef::/112", 0, &t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[f:f:f:f:f:f:f:f::]",0,&t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[::f:f:f:f:f:f:f:f]",0,&t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[f:f:f:f:f:f:f:f:f]",0,&t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[f:f:f:f:f::]/fred",0,&t1,&mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("[f:f:f:f:f::]/255.255.0.0",
0,&t1, NULL, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
/* This one will get rejected because it isn't a pure prefix. */
r=tor_addr_parse_mask_ports("1.1.2.3/255.255.64.0",0,&t1, &mask,NULL,NULL);
tt_int_op(r, OP_EQ, -1);
/* Test for V4-mapped address with mask < 96. (arguably not valid) */
r=tor_addr_parse_mask_ports("[::ffff:1.1.2.2/33]",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("1.1.2.2/33",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
/* Try extended wildcard addresses with out TAPMP_EXTENDED_STAR*/
r=tor_addr_parse_mask_ports("*4",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("*6",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
tt_int_op(r, OP_EQ, -1);
/* Try a mask with a wildcard. */
r=tor_addr_parse_mask_ports("*/16",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("*4/16",TAPMP_EXTENDED_STAR,
&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
r=tor_addr_parse_mask_ports("*6/30",TAPMP_EXTENDED_STAR,
&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, -1);
/* Basic mask tests*/
r=tor_addr_parse_mask_ports("1.1.2.2/31",0,&t1, &mask, NULL, NULL);
tt_int_op(r, OP_EQ, AF_INET);
tt_int_op(mask,OP_EQ,31);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ,0x01010202);
r=tor_addr_parse_mask_ports("3.4.16.032:1-2",0,&t1, &mask, &port1, &port2);
tt_int_op(r, OP_EQ, AF_INET);
tt_int_op(mask,OP_EQ,32);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ,0x03041020);
tt_uint_op(port1, OP_EQ, 1);
tt_uint_op(port2, OP_EQ, 2);
r=tor_addr_parse_mask_ports("1.1.2.3/255.255.128.0",0,&t1, &mask,NULL,NULL);
tt_int_op(r, OP_EQ, AF_INET);
tt_int_op(mask,OP_EQ,17);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ,0x01010203);
r=tor_addr_parse_mask_ports("[efef::]/112",0,&t1, &mask, &port1, &port2);
tt_int_op(r, OP_EQ, AF_INET6);
tt_uint_op(port1, OP_EQ, 1);
tt_uint_op(port2, OP_EQ, 65535);
/* Try regular wildcard behavior without TAPMP_EXTENDED_STAR */
r=tor_addr_parse_mask_ports("*:80-443",0,&t1,&mask,&port1,&port2);
tt_int_op(r,OP_EQ,AF_INET); /* Old users of this always get inet */
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ,0);
tt_int_op(mask,OP_EQ,0);
tt_int_op(port1,OP_EQ,80);
tt_int_op(port2,OP_EQ,443);
/* Now try wildcards *with* TAPMP_EXTENDED_STAR */
r=tor_addr_parse_mask_ports("*:8000-9000",TAPMP_EXTENDED_STAR,
&t1,&mask,&port1,&port2);
tt_int_op(r,OP_EQ,AF_UNSPEC);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_UNSPEC);
tt_int_op(mask,OP_EQ,0);
tt_int_op(port1,OP_EQ,8000);
tt_int_op(port2,OP_EQ,9000);
r=tor_addr_parse_mask_ports("*4:6667",TAPMP_EXTENDED_STAR,
&t1,&mask,&port1,&port2);
tt_int_op(r,OP_EQ,AF_INET);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET);
tt_int_op(tor_addr_to_ipv4h(&t1),OP_EQ,0);
tt_int_op(mask,OP_EQ,0);
tt_int_op(port1,OP_EQ,6667);
tt_int_op(port2,OP_EQ,6667);
r=tor_addr_parse_mask_ports("*6",TAPMP_EXTENDED_STAR,
&t1,&mask,&port1,&port2);
tt_int_op(r,OP_EQ,AF_INET6);
tt_int_op(tor_addr_family(&t1),OP_EQ,AF_INET6);
tt_assert(tor_mem_is_zero((const char*)tor_addr_to_in6_addr32(&t1), 16));
tt_int_op(mask,OP_EQ,0);
tt_int_op(port1,OP_EQ,1);
tt_int_op(port2,OP_EQ,65535);
/* make sure inet address lengths >= max */
tt_int_op(INET_NTOA_BUF_LEN, OP_GE, sizeof("255.255.255.255"));
tt_int_op(TOR_ADDR_BUF_LEN, OP_GE,
sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"));
tt_assert(sizeof(tor_addr_t) >= sizeof(struct in6_addr));
/* get interface addresses */
r = get_interface_address6(LOG_DEBUG, AF_INET, &t1);
tt_int_op(r, OP_LE, 0); // "it worked or it didn't"
i = get_interface_address6(LOG_DEBUG, AF_INET6, &t2);
tt_int_op(i, OP_LE, 0); // "it worked or it didn't"
TT_BLATHER(("v4 address: %s (family=%d)", fmt_addr(&t1),
tor_addr_family(&t1)));
TT_BLATHER(("v6 address: %s (family=%d)", fmt_addr(&t2),
tor_addr_family(&t2)));
done:
;
}
/** Test tor_addr_port_parse(). */
static void
test_addr_parse(void *arg)
{
int r;
tor_addr_t addr;
char buf[TOR_ADDR_BUF_LEN];
uint16_t port = 0;
/* Correct call. */
(void)arg;
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.1:1234",
&addr, &port, -1);
tt_int_op(r, OP_EQ, 0);
tor_addr_to_str(buf, &addr, sizeof(buf), 0);
tt_str_op(buf,OP_EQ, "192.0.2.1");
tt_int_op(port,OP_EQ, 1234);
r= tor_addr_port_parse(LOG_DEBUG,
"[::1]:1234",
&addr, &port, -1);
tt_int_op(r, OP_EQ, 0);
tor_addr_to_str(buf, &addr, sizeof(buf), 0);
tt_str_op(buf,OP_EQ, "::1");
tt_int_op(port,OP_EQ, 1234);
/* Domain name. */
r= tor_addr_port_parse(LOG_DEBUG,
"torproject.org:1234",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
/* Only IP. */
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.2",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.2",
&addr, &port, 200);
tt_int_op(r, OP_EQ, 0);
tt_int_op(port,OP_EQ,200);
r= tor_addr_port_parse(LOG_DEBUG,
"[::1]",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
r= tor_addr_port_parse(LOG_DEBUG,
"[::1]",
&addr, &port, 400);
tt_int_op(r, OP_EQ, 0);
tt_int_op(port,OP_EQ,400);
/* Bad port. */
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.2:66666",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.2:66666",
&addr, &port, 200);
tt_int_op(r, OP_EQ, -1);
/* Only domain name */
r= tor_addr_port_parse(LOG_DEBUG,
"torproject.org",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
r= tor_addr_port_parse(LOG_DEBUG,
"torproject.org",
&addr, &port, 200);
tt_int_op(r, OP_EQ, -1);
/* Bad IP address */
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2:1234",
&addr, &port, -1);
tt_int_op(r, OP_EQ, -1);
/* Make sure that the default port has lower priority than the real
one */
r= tor_addr_port_parse(LOG_DEBUG,
"192.0.2.2:1337",
&addr, &port, 200);
tt_int_op(r, OP_EQ, 0);
tt_int_op(port,OP_EQ,1337);
r= tor_addr_port_parse(LOG_DEBUG,
"[::1]:1369",
&addr, &port, 200);
tt_int_op(r, OP_EQ, 0);
tt_int_op(port,OP_EQ,1369);
done:
;
}
static void
update_difference(int ipv6, uint8_t *d,
const tor_addr_t *a, const tor_addr_t *b)
{
const int n_bytes = ipv6 ? 16 : 4;
uint8_t a_tmp[4], b_tmp[4];
const uint8_t *ba, *bb;
int i;
if (ipv6) {
ba = tor_addr_to_in6_addr8(a);
bb = tor_addr_to_in6_addr8(b);
} else {
set_uint32(a_tmp, tor_addr_to_ipv4n(a));
set_uint32(b_tmp, tor_addr_to_ipv4n(b));
ba = a_tmp; bb = b_tmp;
}
for (i = 0; i < n_bytes; ++i) {
d[i] |= ba[i] ^ bb[i];
}
}
static void
test_virtaddrmap(void *data)
{
/* Let's start with a bunch of random addresses. */
int ipv6, bits, iter, b;
virtual_addr_conf_t cfg[2];
uint8_t bytes[16];
(void)data;
tor_addr_parse(&cfg[0].addr, "64.65.0.0");
tor_addr_parse(&cfg[1].addr, "3491:c0c0::");
for (ipv6 = 0; ipv6 <= 1; ++ipv6) {
for (bits = 0; bits < 18; ++bits) {
tor_addr_t last_a;
cfg[ipv6].bits = bits;
memset(bytes, 0, sizeof(bytes));
tor_addr_copy(&last_a, &cfg[ipv6].addr);
/* Generate 128 addresses with each addr/bits combination. */
for (iter = 0; iter < 128; ++iter) {
tor_addr_t a;
get_random_virtual_addr(&cfg[ipv6], &a);
//printf("%s\n", fmt_addr(&a));
/* Make sure that the first b bits match the configured network */
tt_int_op(0, OP_EQ, tor_addr_compare_masked(&a, &cfg[ipv6].addr,
bits, CMP_EXACT));
/* And track which bits have been different between pairs of
* addresses */
update_difference(ipv6, bytes, &last_a, &a);
}
/* Now make sure all but the first 'bits' bits of bytes are true */
for (b = bits+1; b < (ipv6?128:32); ++b) {
tt_assert(1 & (bytes[b/8] >> (7-(b&7))));
}
}
}
done:
;
}
static const char *canned_data = NULL;
static size_t canned_data_len = 0;
/* Mock replacement for crypto_rand() that returns canned data from
* canned_data above. */
static void
crypto_canned(char *ptr, size_t n)
{
if (canned_data_len) {
size_t to_copy = MIN(n, canned_data_len);
memcpy(ptr, canned_data, to_copy);
canned_data += to_copy;
canned_data_len -= to_copy;
n -= to_copy;
ptr += to_copy;
}
if (n) {
crypto_rand_unmocked(ptr, n);
}
}
static void
test_virtaddrmap_persist(void *data)
{
(void)data;
const char *a, *b, *c;
tor_addr_t addr;
char *ones = NULL;
addressmap_init();
// Try a hostname.
a = addressmap_register_virtual_address(RESOLVED_TYPE_HOSTNAME,
tor_strdup("foobar.baz"));
tt_assert(a);
tt_assert(!strcmpend(a, ".virtual"));
// mock crypto_rand to repeat the same result twice; make sure we get
// different outcomes. (Because even though the odds for receiving the
// same 80-bit address twice is only 1/2^40, it could still happen for
// some user -- but running our test through 2^40 iterations isn't
// reasonable.)
canned_data = "1234567890" // the first call returns this.
"1234567890" // the second call returns this.
"abcdefghij"; // the third call returns this.
canned_data_len = 30;
MOCK(crypto_rand, crypto_canned);
a = addressmap_register_virtual_address(RESOLVED_TYPE_HOSTNAME,
tor_strdup("quuxit.baz"));
b = addressmap_register_virtual_address(RESOLVED_TYPE_HOSTNAME,
tor_strdup("nescio.baz"));
tt_assert(a);
tt_assert(b);
tt_str_op(a, OP_EQ, "gezdgnbvgy3tqojq.virtual");
tt_str_op(b, OP_EQ, "mfrggzdfmztwq2lk.virtual");
// Now try something to get us an ipv4 address
UNMOCK(crypto_rand);
tt_int_op(0,OP_EQ, parse_virtual_addr_network("192.168.0.0/16",
AF_INET, 0, NULL));
a = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("foobar.baz"));
tt_assert(a);
tt_assert(!strcmpstart(a, "192.168."));
tor_addr_parse(&addr, a);
tt_int_op(AF_INET, OP_EQ, tor_addr_family(&addr));
b = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("quuxit.baz"));
tt_str_op(b, OP_NE, a);
tt_assert(!strcmpstart(b, "192.168."));
// Try some canned entropy and verify all the we discard duplicates,
// addresses that end with 0, and addresses that end with 255.
MOCK(crypto_rand, crypto_canned);
canned_data = "\x01\x02\x03\x04" // okay
"\x01\x02\x03\x04" // duplicate
"\x03\x04\x00\x00" // bad ending 1
"\x05\x05\x00\xff" // bad ending 2
"\x05\x06\x07\xf0"; // okay
canned_data_len = 20;
a = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("wumble.onion"));
b = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("wumpus.onion"));
tt_str_op(a, OP_EQ, "192.168.3.4");
tt_str_op(b, OP_EQ, "192.168.7.240");
// Now try IPv6!
UNMOCK(crypto_rand);
tt_int_op(0,OP_EQ, parse_virtual_addr_network("1010:F000::/20",
AF_INET6, 0, NULL));
a = addressmap_register_virtual_address(RESOLVED_TYPE_IPV6,
tor_strdup("foobar.baz"));
tt_assert(a);
tt_assert(!strcmpstart(a, "[1010:f"));
tor_addr_parse(&addr, a);
tt_int_op(AF_INET6, OP_EQ, tor_addr_family(&addr));
b = addressmap_register_virtual_address(RESOLVED_TYPE_IPV6,
tor_strdup("quuxit.baz"));
tt_str_op(b, OP_NE, a);
tt_assert(!strcmpstart(b, "[1010:f"));
// Try IPv6 with canned entropy, to make sure we detect duplicates.
MOCK(crypto_rand, crypto_canned);
canned_data = "acanthopterygian" // okay
"cinematographist" // okay
"acanthopterygian" // duplicate
"acanthopterygian" // duplicate
"acanthopterygian" // duplicate
"cinematographist" // duplicate
"coadministration"; // okay
canned_data_len = 16 * 7;
a = addressmap_register_virtual_address(RESOLVED_TYPE_IPV6,
tor_strdup("wuffle.baz"));
b = addressmap_register_virtual_address(RESOLVED_TYPE_IPV6,
tor_strdup("gribble.baz"));
c = addressmap_register_virtual_address(RESOLVED_TYPE_IPV6,
tor_strdup("surprisingly-legible.baz"));
tt_str_op(a, OP_EQ, "[1010:f16e:7468:6f70:7465:7279:6769:616e]");
tt_str_op(b, OP_EQ, "[1010:fe65:6d61:746f:6772:6170:6869:7374]");
tt_str_op(c, OP_EQ, "[1010:f164:6d69:6e69:7374:7261:7469:6f6e]");
// Try address exhaustion: make sure we can actually fail if we
// get too many already-existing addresses.
canned_data_len = 128*1024;
canned_data = ones = tor_malloc(canned_data_len);
memset(ones, 1, canned_data_len);
// There is some chance this one will fail if a previous random
// allocation gave out the address already.
a = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("might-work.onion"));
if (a) {
tt_str_op(a, OP_EQ, "192.168.1.1");
}
setup_capture_of_logs(LOG_WARN);
// This one will definitely fail, since we've set up the RNG to hand
// out "1" forever.
b = addressmap_register_virtual_address(RESOLVED_TYPE_IPV4,
tor_strdup("wont-work.onion"));
tt_assert(b == NULL);
expect_single_log_msg_containing("Ran out of virtual addresses!");
done:
UNMOCK(crypto_rand);
tor_free(ones);
addressmap_free_all();
teardown_capture_of_logs();
}
static void
test_addr_localname(void *arg)
{
(void)arg;
tt_assert(tor_addr_hostname_is_local("localhost"));
tt_assert(tor_addr_hostname_is_local("LOCALHOST"));
tt_assert(tor_addr_hostname_is_local("LocalHost"));
tt_assert(tor_addr_hostname_is_local("local"));
tt_assert(tor_addr_hostname_is_local("LOCAL"));
tt_assert(tor_addr_hostname_is_local("here.now.local"));
tt_assert(tor_addr_hostname_is_local("here.now.LOCAL"));
tt_assert(!tor_addr_hostname_is_local(" localhost"));
tt_assert(!tor_addr_hostname_is_local("www.torproject.org"));
done:
;
}
static void
test_addr_dup_ip(void *arg)
{
char *v = NULL;
(void)arg;
#define CHECK(ip, s) do { \
v = tor_dup_ip(ip); \
tt_str_op(v,OP_EQ,(s)); \
tor_free(v); \
} while (0)
CHECK(0xffffffff, "255.255.255.255");
CHECK(0x00000000, "0.0.0.0");
CHECK(0x7f000001, "127.0.0.1");
CHECK(0x01020304, "1.2.3.4");
#undef CHECK
done:
tor_free(v);
}
static void
test_addr_sockaddr_to_str(void *arg)
{
char *v = NULL;
struct sockaddr_in sin;
struct sockaddr_in6 sin6;
struct sockaddr_storage ss;
#ifdef HAVE_SYS_UN_H
struct sockaddr_un s_un;
#endif
#define CHECK(sa, s) do { \
v = tor_sockaddr_to_str((const struct sockaddr*) &(sa)); \
tt_str_op(v,OP_EQ,(s)); \
tor_free(v); \
} while (0)
(void)arg;
memset(&ss,0,sizeof(ss));
ss.ss_family = AF_UNSPEC;
CHECK(ss, "unspec");
memset(&sin,0,sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = htonl(0x7f808001);
sin.sin_port = htons(1234);
CHECK(sin, "127.128.128.1:1234");
#ifdef HAVE_SYS_UN_H
memset(&s_un,0,sizeof(s_un));
s_un.sun_family = AF_UNIX;
strlcpy(s_un.sun_path, "/here/is/a/path", sizeof(s_un.sun_path));
CHECK(s_un, "unix:/here/is/a/path");
#endif /* defined(HAVE_SYS_UN_H) */
memset(&sin6,0,sizeof(sin6));
sin6.sin6_family = AF_INET6;
memcpy(sin6.sin6_addr.s6_addr, "\x20\x00\x00\x00\x00\x00\x00\x00"
"\x00\x1a\x2b\x3c\x4d\x5e\x00\x01", 16);
sin6.sin6_port = htons(1234);
CHECK(sin6, "[2000::1a:2b3c:4d5e:1]:1234");
done:
tor_free(v);
}
static void
test_addr_is_loopback(void *data)
{
static const struct loopback_item {
const char *name;
int is_loopback;
} loopback_items[] = {
{ "::1", 1 },
{ "127.0.0.1", 1 },
{ "127.99.100.101", 1 },
{ "128.99.100.101", 0 },
{ "8.8.8.8", 0 },
{ "0.0.0.0", 0 },
{ "::2", 0 },
{ "::", 0 },
{ "::1.0.0.0", 0 },
{ NULL, 0 }
};
int i;
tor_addr_t addr;
(void)data;
for (i=0; loopback_items[i].name; ++i) {
tt_int_op(tor_addr_parse(&addr, loopback_items[i].name), OP_GE, 0);
tt_int_op(tor_addr_is_loopback(&addr), OP_EQ,
loopback_items[i].is_loopback);
}
tor_addr_make_unspec(&addr);
tt_int_op(tor_addr_is_loopback(&addr), OP_EQ, 0);
done:
;
}
static void
test_addr_make_null(void *data)
{
tor_addr_t *addr = tor_malloc(sizeof(*addr));
tor_addr_t *zeros = tor_malloc_zero(sizeof(*addr));
char buf[TOR_ADDR_BUF_LEN];
(void) data;
/* Ensure that before tor_addr_make_null, addr != 0's */
memset(addr, 1, sizeof(*addr));
tt_int_op(fast_memcmp(addr, zeros, sizeof(*addr)), OP_NE, 0);
/* Test with AF == AF_INET */
zeros->family = AF_INET;
tor_addr_make_null(addr, AF_INET);
tt_int_op(fast_memcmp(addr, zeros, sizeof(*addr)), OP_EQ, 0);
tt_str_op(tor_addr_to_str(buf, addr, sizeof(buf), 0), OP_EQ, "0.0.0.0");
/* Test with AF == AF_INET6 */
memset(addr, 1, sizeof(*addr));
zeros->family = AF_INET6;
tor_addr_make_null(addr, AF_INET6);
tt_int_op(fast_memcmp(addr, zeros, sizeof(*addr)), OP_EQ, 0);
tt_str_op(tor_addr_to_str(buf, addr, sizeof(buf), 0), OP_EQ, "::");
done:
tor_free(addr);
tor_free(zeros);
}
#define ADDR_LEGACY(name) \
{ #name, test_addr_ ## name , 0, NULL, NULL }
struct testcase_t addr_tests[] = {
ADDR_LEGACY(basic),
ADDR_LEGACY(ip6_helpers),
ADDR_LEGACY(parse),
{ "virtaddr", test_virtaddrmap, 0, NULL, NULL },
{ "virtaddr_persist", test_virtaddrmap_persist, TT_FORK, NULL, NULL },
{ "localname", test_addr_localname, 0, NULL, NULL },
{ "dup_ip", test_addr_dup_ip, 0, NULL, NULL },
{ "sockaddr_to_str", test_addr_sockaddr_to_str, 0, NULL, NULL },
{ "is_loopback", test_addr_is_loopback, 0, NULL, NULL },
{ "make_null", test_addr_make_null, 0, NULL, NULL },
END_OF_TESTCASES
};
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