[tor-commits] [tor/master] test/addr: test that tor_addr_lookup() handles IP addresses

commit 6079dfd1032add1c952f22b831d0f3c38147ea08 Author: teor teor@torproject.org Date: Fri Jun 14 00:49:45 2019 +1000

test/addr: test that tor_addr_lookup() handles IP addresses

And that it fails on IP:port and host:port, and does something sensible with host.

Tests for 30721. --- src/test/test_addr.c | 138 +++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 118 insertions(+), 20 deletions(-)

diff --git a/src/test/test_addr.c b/src/test/test_addr.c index 53f41bcf1..d5f7cda43 100644 --- a/src/test/test_addr.c +++ b/src/test/test_addr.c @@ -837,57 +837,130 @@ test_addr_ip6_helpers(void *arg) tt_int_op(addr32h, OP_EQ, 0); \ STMT_END

+/* Test that addr_str successfully parses as a require_family IP address using + * tor_addr_lookup(), and: + * - the address has family expect_family, + * - the fmt_decorated result of tor_addr_to_str() is expect_str. + */ +#define TEST_ADDR_LOOKUP_FMT(addr_str, require_family, expect_family, \ + fmt_decorated, expect_str) \ + STMT_BEGIN \ + int r; \ + tor_addr_t addr; \ + char buf[TOR_ADDR_BUF_LEN]; \ + const char *sv; \ + r = tor_addr_lookup(addr_str, require_family, &addr); \ + tt_int_op(r, OP_EQ, 0); \ + tt_int_op(tor_addr_family(&addr), OP_EQ, expect_family); \ + sv = tor_addr_to_str(buf, &addr, sizeof(buf), fmt_decorated); \ + tt_str_op(sv, OP_EQ, buf); \ + tt_str_op(buf, OP_EQ, expect_str); \ + STMT_END + +/* Test that bad_str fails to parse as a require_family IP address using + * tor_addr_lookup(), with a permanent failure, and: + * - the returned address is null. + */ +#define TEST_ADDR_LOOKUP_XFAIL(bad_str, require_family) \ + STMT_BEGIN \ + int r; \ + tor_addr_t addr; \ + r = tor_addr_lookup(bad_str, require_family, &addr); \ + tt_int_op(r, OP_EQ, -1); \ + tt_assert(tor_addr_is_null(&addr)); \ + STMT_END + +/* Test that looking up host_string as a require_family IP address using + * tor_addr_lookup(), does something sensible: + * - the result is -1, 0, or 1. + * - if the result is a failure, the returned address is null. + * We can't rely on the result of this function, because it depends on the + * network. + */ +#define TEST_HOST_LOOKUP(host_str, require_family) \ + STMT_BEGIN \ + int r; \ + tor_addr_t addr; \ + r = tor_addr_lookup(host_str, require_family, &addr); \ + tt_int_op(r, OP_GE, -1); \ + tt_int_op(r, OP_LE, 1); \ + if (r != 0) \ + tt_assert(tor_addr_is_null(&addr)); \ + STMT_END + /* Test that addr_str successfully parses as a canonical IPv4 address. * Check for successful parsing using: * - tor_addr_parse(), * - tor_addr_port_parse() with a default port, - * - tor_lookup_hostname(). + * - tor_lookup_hostname(), + * - tor_addr_lookup() with AF_INET, + * - tor_addr_lookup() with AF_UNSPEC. * Check for failures using: - * - tor_addr_port_parse() without a default port, because there is no port. + * - tor_addr_port_parse() without a default port, because there is no port, + * - tor_addr_lookup() with AF_INET6. */ #define TEST_ADDR_V4_PARSE_CANONICAL(addr_str) \ STMT_BEGIN \ TEST_ADDR_PARSE_FMT(addr_str, AF_INET, 0, addr_str); \ TEST_ADDR_PORT_PARSE_FMT(addr_str, 111, AF_INET, 0, \ addr_str, 111); \ - TEST_ADDR_PORT_PARSE_XFAIL(addr_str, -1); \ TEST_ADDR_V4_LOOKUP_HOSTNAME(addr_str, addr_str); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_INET, AF_INET, 0, addr_str); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_UNSPEC, AF_INET, 0, addr_str); \ + TEST_ADDR_PORT_PARSE_XFAIL(addr_str, -1); \ + TEST_ADDR_LOOKUP_XFAIL(addr_str, AF_INET6); \ STMT_END

/* Test that addr_str successfully parses as a canonical fmt_decorated * IPv6 address. * Check for successful parsing using: * - tor_addr_parse(), - * - tor_addr_port_parse() with a default port. + * - tor_addr_port_parse() with a default port, + * - tor_addr_lookup() with AF_INET6, + * - tor_addr_lookup() with AF_UNSPEC. * Check for failures using: * - tor_addr_port_parse() without a default port, because there is no port, - * - tor_lookup_hostname(), because it only supports IPv4. + * - tor_lookup_hostname(), because it only supports IPv4, + * - tor_addr_lookup() with AF_INET. */ #define TEST_ADDR_V6_PARSE_CANONICAL(addr_str, fmt_decorated) \ STMT_BEGIN \ TEST_ADDR_PARSE_FMT(addr_str, AF_INET6, fmt_decorated, addr_str); \ TEST_ADDR_PORT_PARSE_FMT(addr_str, 222, AF_INET6, fmt_decorated, \ addr_str, 222); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_INET6, AF_INET6, fmt_decorated, \ + addr_str); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_UNSPEC, AF_INET6, fmt_decorated, \ + addr_str); \ TEST_ADDR_PORT_PARSE_XFAIL(addr_str, -1); \ TEST_ADDR_V4_LOOKUP_XFAIL(addr_str); \ + TEST_ADDR_LOOKUP_XFAIL(addr_str, AF_INET); \ STMT_END

/* Test that addr_str successfully parses, and the fmt_decorated canonical * IPv6 string is expect_str. * Check for successful parsing using: * - tor_addr_parse(), - * - tor_addr_port_parse() with a default port. + * - tor_addr_port_parse() with a default port, + * - tor_addr_lookup() with AF_INET6, + * - tor_addr_lookup() with AF_UNSPEC. * Check for failures using: * - tor_addr_port_parse() without a default port, because there is no port. - * - tor_lookup_hostname(), because it only supports IPv4. + * - tor_lookup_hostname(), because it only supports IPv4, + * - tor_addr_lookup() with AF_INET. */ #define TEST_ADDR_V6_PARSE(addr_str, fmt_decorated, expect_str) \ STMT_BEGIN \ TEST_ADDR_PARSE_FMT(addr_str, AF_INET6, fmt_decorated, expect_str); \ TEST_ADDR_PORT_PARSE_FMT(addr_str, 333, AF_INET6, fmt_decorated, \ expect_str, 333); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_INET6, AF_INET6, fmt_decorated, \ + expect_str); \ + TEST_ADDR_LOOKUP_FMT(addr_str, AF_UNSPEC, AF_INET6, fmt_decorated, \ + expect_str); \ TEST_ADDR_PORT_PARSE_XFAIL(addr_str, -1); \ TEST_ADDR_V4_LOOKUP_XFAIL(addr_str); \ + TEST_ADDR_LOOKUP_XFAIL(addr_str, AF_INET); \ STMT_END

/* Test that addr_port_str successfully parses to the canonical IPv4 address @@ -898,6 +971,8 @@ test_addr_ip6_helpers(void *arg) * Check for failures using: * - tor_addr_parse(), because there is a port, * - tor_lookup_hostname(), because there is a port. + * - tor_addr_lookup(), regardless of the address family, because there is a + * port. */ #define TEST_ADDR_V4_PORT_PARSE(addr_port_str, expect_str, expect_port) \ STMT_BEGIN \ @@ -907,6 +982,9 @@ test_addr_ip6_helpers(void *arg) expect_port); \ TEST_ADDR_PARSE_XFAIL(addr_port_str); \ TEST_ADDR_V4_LOOKUP_XFAIL(addr_port_str); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_INET); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_UNSPEC); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_INET6); \ STMT_END

/* Test that addr_port_str successfully parses to the canonical undecorated @@ -917,7 +995,9 @@ test_addr_ip6_helpers(void *arg) * Check for failures using: * - tor_addr_parse(), because there is a port, * - tor_lookup_hostname(), because there is a port, and because it only - * supports IPv4. + * supports IPv4, + * - tor_addr_lookup(), regardless of the address family, because there is a + * port. */ #define TEST_ADDR_V6_PORT_PARSE(addr_port_str, expect_str, expect_port) \ STMT_BEGIN \ @@ -927,26 +1007,34 @@ test_addr_ip6_helpers(void *arg) expect_port); \ TEST_ADDR_PARSE_XFAIL(addr_port_str); \ TEST_ADDR_V4_LOOKUP_XFAIL(addr_port_str); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_INET6); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_UNSPEC); \ + TEST_ADDR_LOOKUP_XFAIL(addr_port_str, AF_INET); \ STMT_END

/* Test that addr_str fails to parse due to a bad address or port. * Check for failures using: * - tor_addr_parse(), * - tor_addr_port_parse() without a default port, - * - tor_addr_port_parse() with a default port. - * - tor_lookup_hostname(). + * - tor_addr_port_parse() with a default port, + * - tor_lookup_hostname(), + * - tor_addr_lookup(), regardless of the address family. */ -#define TEST_ADDR_PARSE_XFAIL_MALFORMED(addr_str) \ +#define TEST_ADDR_PARSE_XFAIL_MALFORMED(bad_str) \ STMT_BEGIN \ - TEST_ADDR_PARSE_XFAIL(addr_str); \ - TEST_ADDR_PORT_PARSE_XFAIL(addr_str, -1); \ - TEST_ADDR_PORT_PARSE_XFAIL(addr_str, 666); \ - TEST_ADDR_V4_LOOKUP_XFAIL(addr_str); \ + TEST_ADDR_PARSE_XFAIL(bad_str); \ + TEST_ADDR_PORT_PARSE_XFAIL(bad_str, -1); \ + TEST_ADDR_PORT_PARSE_XFAIL(bad_str, 666); \ + TEST_ADDR_V4_LOOKUP_XFAIL(bad_str); \ + TEST_ADDR_LOOKUP_XFAIL(bad_str, AF_UNSPEC); \ + TEST_ADDR_LOOKUP_XFAIL(bad_str, AF_INET); \ + TEST_ADDR_LOOKUP_XFAIL(bad_str, AF_INET6); \ STMT_END

/* Test that host_str is treated as a hostname, and not an address. - * Check for success or failure using: - * - tor_lookup_hostname(), because it depends on the network. + * Check for success or failure using the network-dependent functions: + * - tor_lookup_hostname(), + * - tor_addr_lookup(), regardless of the address family. * Check for failures using: * - tor_addr_parse(), * - tor_addr_port_parse() without a default port, @@ -955,6 +1043,9 @@ test_addr_ip6_helpers(void *arg) #define TEST_HOSTNAME(host_str) \ STMT_BEGIN \ TEST_HOST_V4_LOOKUP(host_str); \ + TEST_HOST_LOOKUP(host_str, AF_UNSPEC); \ + TEST_HOST_LOOKUP(host_str, AF_INET); \ + TEST_HOST_LOOKUP(host_str, AF_INET6); \ TEST_ADDR_PARSE_XFAIL(host_str); \ TEST_ADDR_PORT_PARSE_XFAIL(host_str, -1); \ TEST_ADDR_PORT_PARSE_XFAIL(host_str, 777); \ @@ -963,17 +1054,22 @@ test_addr_ip6_helpers(void *arg) /* Test that host_port_str is treated as a hostname and port, and not a * hostname or an address. * Check for failures using: - * - tor_lookup_hostname(), because it doesn't support ports, * - tor_addr_parse(), * - tor_addr_port_parse() without a default port, - * - tor_addr_port_parse() with a default port. + * - tor_addr_port_parse() with a default port, + * - tor_lookup_hostname(), because it doesn't support ports, + * - tor_addr_lookup(), regardless of the address family, because it doesn't + * support ports. */ #define TEST_HOSTNAME_PORT(host_port_str) \ STMT_BEGIN \ - TEST_ADDR_V4_LOOKUP_XFAIL(host_port_str); \ TEST_ADDR_PARSE_XFAIL(host_port_str); \ TEST_ADDR_PORT_PARSE_XFAIL(host_port_str, -1); \ TEST_ADDR_PORT_PARSE_XFAIL(host_port_str, 888); \ + TEST_ADDR_V4_LOOKUP_XFAIL(host_port_str); \ + TEST_ADDR_LOOKUP_XFAIL(host_port_str, AF_UNSPEC); \ + TEST_ADDR_LOOKUP_XFAIL(host_port_str, AF_INET); \ + TEST_ADDR_LOOKUP_XFAIL(host_port_str, AF_INET6); \ STMT_END

/** Test tor_addr_parse() and tor_addr_port_parse(). */ @@ -1040,6 +1136,8 @@ test_addr_parse(void *arg) TEST_ADDR_V6_PORT_PARSE("[::1]:1234", "::1", 1234);

/* Domain name. */ + TEST_HOSTNAME("localhost"); + TEST_HOSTNAME_PORT("localhost:1234"); TEST_HOSTNAME("torproject.org"); TEST_HOSTNAME_PORT("torproject.org:1234");