/* Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2017, The Tor Project, Inc. */ /* See LICENSE for licensing information */ #define ADDRESSMAP_PRIVATE #include "orconfig.h" #include "or.h" #include "crypto_rand.h" #include "test.h" #include "addressmap.h" #include "log_test_helpers.h" /** Mocking replacement: only handles localhost. */ static int mock_tor_addr_lookup(const char *name, uint16_t family, tor_addr_t *addr_out) { if (!strcmp(name, "localhost")) { if (family == AF_INET || family == AF_UNSPEC) { tor_addr_from_ipv4h(addr_out, 0x7f000001); return 0; } else if (family == AF_INET6) { char bytes[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }; tor_addr_from_ipv6_bytes(addr_out, bytes); return 0; } } return -1; } static void test_addr_basic(void *arg) { uint32_t u32; uint16_t u16; char *cp; /* Test addr_port_lookup */ (void)arg; cp = NULL; u32 = 3; u16 = 3; tt_assert(!addr_port_lookup(LOG_WARN, "1.2.3.4", &cp, &u32, &u16)); tt_str_op(cp,OP_EQ, "1.2.3.4"); tt_int_op(u32,OP_EQ, 0x01020304u); tt_int_op(u16,OP_EQ, 0); tor_free(cp); tt_assert(!addr_port_lookup(LOG_WARN, "4.3.2.1:99", &cp, &u32, &u16)); tt_str_op(cp,OP_EQ, "4.3.2.1"); tt_int_op(u32,OP_EQ, 0x04030201u); tt_int_op(u16,OP_EQ, 99); tor_free(cp); MOCK(tor_addr_lookup, mock_tor_addr_lookup); tt_assert(!addr_port_lookup(LOG_WARN, "nonexistent.address:4040", &cp, NULL, &u16)); tt_str_op(cp,OP_EQ, "nonexistent.address"); tt_int_op(u16,OP_EQ, 4040); tor_free(cp); tt_assert(!addr_port_lookup(LOG_WARN, "localhost:9999", &cp, &u32, &u16)); tt_str_op(cp,OP_EQ, "localhost"); tt_int_op(u16,OP_EQ, 9999); tt_int_op(u32,OP_EQ, 0x7f000001u); tor_free(cp); u32 = 3; tt_assert(!addr_port_lookup(LOG_WARN, "localhost", NULL, &u32, &u16)); tt_ptr_op(cp,OP_EQ, NULL); tt_int_op(u32,OP_EQ, 0x7f000001u); tt_int_op(u16,OP_EQ, 0); tor_free(cp); tt_assert(addr_port_lookup(LOG_WARN, "localhost:3", &cp, &u32, NULL)); tor_free(cp); 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: UNMOCK(tor_addr_lookup); tor_free(cp); } #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 a 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 a, when parsed by tor_inet_pton() and displayed * with tor_inet_ntop(), yields b. Also assert that b parses to * the same value as a. */ #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 a parses by tor_inet_pton() into a address that * passes tor_addr_is_internal() with for_listening. */ #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 a parses by tor_inet_pton() into a address that * does not pass tor_addr_is_internal() with for_listening. */ #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 a and b, when parsed by * tor_inet_pton(), give addresses that compare in the order defined by * op 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 a and b, when parsed by * tor_inet_pton(), give addresses that compare in the order defined by * op with tor_addr_compare_masked() with m 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 xx is parseable as a masked IPv6 address with * ports by tor_parse_mask_addr_ports(), with family f, IP address * as 4 32-bit words ip1...ip4, mask bits as mm, and port range * as pt1..pt2. */ #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 };