diff options
Diffstat (limited to 'test')
34 files changed, 0 insertions, 30075 deletions
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- -#ifdef __AFL_LOOP -/* If we are built with afl-clang-fast, use persistent mode */ -#define KEEP_FUZZING(count) __AFL_LOOP(1000) -#else -/* If we are built with afl-clang, execute each input once */ -#define KEEP_FUZZING(count) ((count) < 1) -#endif - -/* In ares-test-fuzz.c: */ -int LLVMFuzzerTestOneInput(const unsigned char *data, unsigned long size); - -static void ProcessFile(int fd) { - ssize_t count = read(fd, afl_buffer, kMaxAflInputSize); - /* - * Make a copy of the data so that it's not part of a larger - * buffer (where buffer overflows would go unnoticed). - */ - unsigned char *copied_data = (unsigned char *)malloc(count); - LLVMFuzzerTestOneInput(copied_data, count); - free(copied_data); -} - -int main(int argc, char *argv[]) { - if (argc == 1) { - int count = 0; - while (KEEP_FUZZING(count)) { - ProcessFile(fileno(stdin)); - count++; - } - } else { - int ii; - for (ii = 1; ii < argc; ++ii) { - int fd = open(argv[ii], O_RDONLY); - if (fd < 0) { - fprintf(stderr, "Failed to open '%s'\n", argv[ii]); - continue; - } - ProcessFile(fd); - close(fd); - } - } - return 0; -} diff --git a/test/ares-test-fuzz.c b/test/ares-test-fuzz.c deleted file mode 100644 index 528e76c..0000000 --- a/test/ares-test-fuzz.c +++ /dev/null @@ -1,46 +0,0 @@ -#include <stddef.h> - -#include "ares.h" - -// Entrypoint for Clang's libfuzzer -int LLVMFuzzerTestOneInput(const unsigned char *data, - unsigned long size) { - // Feed the data into each of the ares_parse_*_reply functions. - struct hostent *host = NULL; - struct ares_addrttl info[5]; - int count = 5; - ares_parse_a_reply(data, size, &host, info, &count); - if (host) ares_free_hostent(host); - - host = NULL; - struct ares_addr6ttl info6[5]; - count = 5; - ares_parse_aaaa_reply(data, size, &host, info6, &count); - if (host) ares_free_hostent(host); - - host = NULL; - unsigned char addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - ares_parse_ptr_reply(data, size, addrv4, sizeof(addrv4), AF_INET, &host); - if (host) ares_free_hostent(host); - - host = NULL; - ares_parse_ns_reply(data, size, &host); - if (host) ares_free_hostent(host); - - struct ares_srv_reply* srv = NULL; - ares_parse_srv_reply(data, size, &srv); - if (srv) ares_free_data(srv); - - struct ares_mx_reply* mx = NULL; - ares_parse_mx_reply(data, size, &mx); - if (mx) ares_free_data(mx); - - struct ares_txt_reply* txt = NULL; - ares_parse_txt_reply(data, size, &txt); - if (txt) ares_free_data(txt); - - struct ares_soa_reply* soa = NULL; - ares_parse_soa_reply(data, size, &soa); - if (soa) ares_free_data(soa); - return 0; -} diff --git a/test/ares-test-init.cc b/test/ares-test-init.cc deleted file mode 100644 index 66570ac..0000000 --- a/test/ares-test-init.cc +++ /dev/null @@ -1,595 +0,0 @@ -#include "ares-test.h" - -// library initialization is only needed for windows builds -#ifdef WIN32 -#define EXPECTED_NONINIT ARES_ENOTINITIALIZED -#else -#define EXPECTED_NONINIT ARES_SUCCESS -#endif - -namespace ares { -namespace test { - -TEST(LibraryInit, Basic) { - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); - EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); - EXPECT_EQ(ARES_SUCCESS, ares_library_initialized()); - ares_library_cleanup(); - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); -} - -TEST(LibraryInit, UnexpectedCleanup) { - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); - ares_library_cleanup(); - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); -} - -TEST(LibraryInit, DISABLED_InvalidParam) { - // TODO: police flags argument to ares_library_init() - EXPECT_EQ(ARES_EBADQUERY, ares_library_init(ARES_LIB_INIT_ALL << 2)); - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); - ares_library_cleanup(); -} - -TEST(LibraryInit, Nested) { - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); - EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); - EXPECT_EQ(ARES_SUCCESS, ares_library_initialized()); - EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); - EXPECT_EQ(ARES_SUCCESS, ares_library_initialized()); - ares_library_cleanup(); - EXPECT_EQ(ARES_SUCCESS, ares_library_initialized()); - ares_library_cleanup(); - EXPECT_EQ(EXPECTED_NONINIT, ares_library_initialized()); -} - -TEST(LibraryInit, BasicChannelInit) { - EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - EXPECT_NE(nullptr, channel); - ares_destroy(channel); - ares_library_cleanup(); -} - -TEST_F(LibraryTest, OptionsChannelInit) { - struct ares_options opts = {0}; - int optmask = 0; - opts.flags = ARES_FLAG_USEVC | ARES_FLAG_PRIMARY; - optmask |= ARES_OPT_FLAGS; - opts.timeout = 2000; - optmask |= ARES_OPT_TIMEOUTMS; - opts.tries = 2; - optmask |= ARES_OPT_TRIES; - opts.ndots = 4; - optmask |= ARES_OPT_NDOTS; - opts.udp_port = 54; - optmask |= ARES_OPT_UDP_PORT; - opts.tcp_port = 54; - optmask |= ARES_OPT_TCP_PORT; - opts.socket_send_buffer_size = 514; - optmask |= ARES_OPT_SOCK_SNDBUF; - opts.socket_receive_buffer_size = 514; - optmask |= ARES_OPT_SOCK_RCVBUF; - opts.ednspsz = 1280; - optmask |= ARES_OPT_EDNSPSZ; - opts.nservers = 2; - opts.servers = (struct in_addr *)malloc(opts.nservers * sizeof(struct in_addr)); - opts.servers[0].s_addr = htonl(0x01020304); - opts.servers[1].s_addr = htonl(0x02030405); - optmask |= ARES_OPT_SERVERS; - opts.ndomains = 2; - opts.domains = (char **)malloc(opts.ndomains * sizeof(char *)); - opts.domains[0] = strdup("example.com"); - opts.domains[1] = strdup("example2.com"); - optmask |= ARES_OPT_DOMAINS; - opts.lookups = strdup("b"); - optmask |= ARES_OPT_LOOKUPS; - optmask |= ARES_OPT_ROTATE; - - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask)); - EXPECT_NE(nullptr, channel); - - ares_channel channel2 = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_dup(&channel2, channel)); - - struct ares_options opts2 = {0}; - int optmask2 = 0; - EXPECT_EQ(ARES_SUCCESS, ares_save_options(channel2, &opts2, &optmask2)); - - // Note that not all opts-settable fields are saved (e.g. - // ednspsz, socket_{send,receive}_buffer_size). - EXPECT_EQ(opts.flags, opts2.flags); - EXPECT_EQ(opts.timeout, opts2.timeout); - EXPECT_EQ(opts.tries, opts2.tries); - EXPECT_EQ(opts.ndots, opts2.ndots); - EXPECT_EQ(opts.udp_port, opts2.udp_port); - EXPECT_EQ(opts.tcp_port, opts2.tcp_port); - EXPECT_EQ(1, opts2.nservers); // Truncated by ARES_FLAG_PRIMARY - EXPECT_EQ(opts.servers[0].s_addr, opts2.servers[0].s_addr); - EXPECT_EQ(opts.ndomains, opts2.ndomains); - EXPECT_EQ(std::string(opts.domains[0]), std::string(opts2.domains[0])); - EXPECT_EQ(std::string(opts.domains[1]), std::string(opts2.domains[1])); - EXPECT_EQ(std::string(opts.lookups), std::string(opts2.lookups)); - - ares_destroy_options(&opts); - ares_destroy_options(&opts2); - ares_destroy(channel); - ares_destroy(channel2); -} - -TEST_F(LibraryTest, ChannelAllocFail) { - ares_channel channel; - for (int ii = 1; ii <= 25; ii++) { - ClearFails(); - SetAllocFail(ii); - channel = nullptr; - int rc = ares_init(&channel); - // The number of allocations depends on local environment, so don't expect ENOMEM. - if (rc == ARES_ENOMEM) { - EXPECT_EQ(nullptr, channel); - } else { - ares_destroy(channel); - } - } -} - -TEST_F(LibraryTest, OptionsChannelAllocFail) { - struct ares_options opts = {0}; - int optmask = 0; - opts.flags = ARES_FLAG_USEVC; - optmask |= ARES_OPT_FLAGS; - opts.timeout = 2; - optmask |= ARES_OPT_TIMEOUT; - opts.tries = 2; - optmask |= ARES_OPT_TRIES; - opts.ndots = 4; - optmask |= ARES_OPT_NDOTS; - opts.udp_port = 54; - optmask |= ARES_OPT_UDP_PORT; - opts.tcp_port = 54; - optmask |= ARES_OPT_TCP_PORT; - opts.socket_send_buffer_size = 514; - optmask |= ARES_OPT_SOCK_SNDBUF; - opts.socket_receive_buffer_size = 514; - optmask |= ARES_OPT_SOCK_RCVBUF; - opts.ednspsz = 1280; - optmask |= ARES_OPT_EDNSPSZ; - opts.nservers = 2; - opts.servers = (struct in_addr *)malloc(opts.nservers * sizeof(struct in_addr)); - opts.servers[0].s_addr = htonl(0x01020304); - opts.servers[1].s_addr = htonl(0x02030405); - optmask |= ARES_OPT_SERVERS; - opts.ndomains = 2; - opts.domains = (char **)malloc(opts.ndomains * sizeof(char *)); - opts.domains[0] = strdup("example.com"); - opts.domains[1] = strdup("example2.com"); - optmask |= ARES_OPT_DOMAINS; - opts.lookups = strdup("b"); - optmask |= ARES_OPT_LOOKUPS; - optmask |= ARES_OPT_ROTATE; - - ares_channel channel = nullptr; - for (int ii = 1; ii <= 8; ii++) { - ClearFails(); - SetAllocFail(ii); - int rc = ares_init_options(&channel, &opts, optmask); - if (rc == ARES_ENOMEM) { - EXPECT_EQ(nullptr, channel); - } else { - EXPECT_EQ(ARES_SUCCESS, rc); - ares_destroy(channel); - channel = nullptr; - } - } - ClearFails(); - - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask)); - EXPECT_NE(nullptr, channel); - - // Add some servers and a sortlist for flavour. - EXPECT_EQ(ARES_SUCCESS, - ares_set_servers_csv(channel, "1.2.3.4,0102:0304:0506:0708:0910:1112:1314:1516,2.3.4.5")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel, "1.2.3.4 2.3.4.5")); - - ares_channel channel2 = nullptr; - for (int ii = 1; ii <= 18; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_dup(&channel2, channel)) << ii; - EXPECT_EQ(nullptr, channel2) << ii; - } - - struct ares_options opts2; - int optmask2 = 0; - for (int ii = 1; ii <= 6; ii++) { - memset(&opts2, 0, sizeof(opts2)); - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_save_options(channel, &opts2, &optmask2)) << ii; - // May still have allocations even after ARES_ENOMEM return code. - ares_destroy_options(&opts2); - } - ares_destroy_options(&opts); - ares_destroy(channel); -} - -TEST_F(LibraryTest, FailChannelInit) { - EXPECT_EQ(ARES_SUCCESS, - ares_library_init_mem(ARES_LIB_INIT_ALL, - &LibraryTest::amalloc, - &LibraryTest::afree, - &LibraryTest::arealloc)); - SetAllocFail(1); - ares_channel channel = nullptr; - EXPECT_EQ(ARES_ENOMEM, ares_init(&channel)); - EXPECT_EQ(nullptr, channel); - ares_library_cleanup(); -} - -#ifndef WIN32 -TEST_F(LibraryTest, EnvInit) { - ares_channel channel = nullptr; - EnvValue v1("LOCALDOMAIN", "this.is.local"); - EnvValue v2("RES_OPTIONS", "options debug ndots:3 retry:3 rotate retrans:2"); - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - ares_destroy(channel); -} - -TEST_F(LibraryTest, EnvInitAllocFail) { - ares_channel channel; - EnvValue v1("LOCALDOMAIN", "this.is.local"); - EnvValue v2("RES_OPTIONS", "options debug ndots:3 retry:3 rotate retrans:2"); - for (int ii = 1; ii <= 10; ii++) { - ClearFails(); - SetAllocFail(ii); - channel = nullptr; - int rc = ares_init(&channel); - if (rc == ARES_SUCCESS) { - ares_destroy(channel); - } else { - EXPECT_EQ(ARES_ENOMEM, rc); - } - } -} -#endif - -TEST_F(DefaultChannelTest, SetAddresses) { - ares_set_local_ip4(channel_, 0x01020304); - byte addr6[16] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, - 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10}; - ares_set_local_ip6(channel_, addr6); - ares_set_local_dev(channel_, "dummy"); -} - -TEST_F(DefaultChannelTest, SetSortlistFailures) { - EXPECT_EQ(ARES_ENODATA, ares_set_sortlist(nullptr, "1.2.3.4")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "xyzzy ; lwk")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "xyzzy ; 0x123")); -} - -TEST_F(DefaultChannelTest, SetSortlistVariants) { - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "1.2.3.4")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "1.2.3.4 ; 2.3.4.5")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "129.1.1.1")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "192.1.1.1")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "224.1.1.1")); - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "225.1.1.1")); -} - -TEST_F(DefaultChannelTest, SetSortlistAllocFail) { - for (int ii = 1; ii <= 3; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_set_sortlist(channel_, "12.13.0.0/16 1234::5678/40 1.2.3.4")) << ii; - } -} - -#ifdef USE_WINSOCK -TEST(Init, NoLibraryInit) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_ENOTINITIALIZED, ares_init(&channel)); -} -#endif - -#ifdef HAVE_CONTAINER -// These tests rely on the ability of non-root users to create a chroot -// using Linux namespaces. - - -// The library uses a variety of information sources to initialize a channel, -// in particular to determine: -// - search: the search domains to use -// - servers: the name servers to use -// - lookup: whether to check files or DNS or both (e.g. "fb") -// - options: various resolver options -// - sortlist: the order of preference for IP addresses -// -// The first source from the following list is used: -// - init_by_options(): explicitly specified values in struct ares_options -// - init_by_environment(): values from the environment: -// - LOCALDOMAIN -> search (single value) -// - RES_OPTIONS -> options -// - init_by_resolv_conf(): values from various config files: -// - /etc/resolv.conf -> search, lookup, servers, sortlist, options -// - /etc/nsswitch.conf -> lookup -// - /etc/host.conf -> lookup -// - /etc/svc.conf -> lookup -// - init_by_defaults(): fallback values: -// - gethostname(3) -> domain -// - "fb" -> lookup - -NameContentList filelist = { - {"/etc/resolv.conf", "nameserver 1.2.3.4\n" - "sortlist 1.2.3.4/16 2.3.4.5\n" - "search first.com second.com\n"}, - {"/etc/hosts", "3.4.5.6 ahostname.com\n"}, - {"/etc/nsswitch.conf", "hosts: files\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerChannelInit, - "myhostname", "mydomainname.org", filelist) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - std::vector<std::string> actual = GetNameServers(channel); - std::vector<std::string> expected = {"1.2.3.4"}; - EXPECT_EQ(expected, actual); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(2, opts.ndomains); - EXPECT_EQ(std::string("first.com"), std::string(opts.domains[0])); - EXPECT_EQ(std::string("second.com"), std::string(opts.domains[1])); - ares_destroy_options(&opts); - - HostResult result; - ares_gethostbyname(channel, "ahostname.com", AF_INET, HostCallback, &result); - ProcessWork(channel, NoExtraFDs, nullptr); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'ahostname.com' aliases=[] addrs=[3.4.5.6]}", ss.str()); - - ares_destroy(channel); - return HasFailure(); -} - -CONTAINED_TEST_F(LibraryTest, ContainerSortlistOptionInit, - "myhostname", "mydomainname.org", filelist) { - ares_channel channel = nullptr; - struct ares_options opts = {0}; - int optmask = 0; - optmask |= ARES_OPT_SORTLIST; - opts.nsort = 0; - // Explicitly specifying an empty sortlist in the options should override the - // environment. - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask)); - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(0, opts.nsort); - EXPECT_EQ(nullptr, opts.sortlist); - EXPECT_EQ(ARES_OPT_SORTLIST, (optmask & ARES_OPT_SORTLIST)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList fullresolv = { - {"/etc/resolv.conf", " nameserver 1.2.3.4 \n" - "search first.com second.com\n" - "lookup bind\n" - "options debug ndots:5\n" - "sortlist 1.2.3.4/16 2.3.4.5\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerFullResolvInit, - "myhostname", "mydomainname.org", fullresolv) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(std::string("b"), std::string(opts.lookups)); - EXPECT_EQ(5, opts.ndots); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList hostconf = { - {"/etc/resolv.conf", "nameserver 1.2.3.4\n" - "sortlist1.2.3.4\n" // malformed line - "search first.com second.com\n"}, - {"/etc/host.conf", "order bind hosts\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerHostConfInit, - "myhostname", "mydomainname.org", hostconf) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(std::string("bf"), std::string(opts.lookups)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList svcconf = { - {"/etc/resolv.conf", "nameserver 1.2.3.4\n" - "search first.com second.com\n"}, - {"/etc/svc.conf", "hosts= bind\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerSvcConfInit, - "myhostname", "mydomainname.org", svcconf) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(std::string("b"), std::string(opts.lookups)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -// Failures when expected config filenames are inaccessible. -class MakeUnreadable { - public: - explicit MakeUnreadable(const std::string& filename) - : filename_(filename) { - chmod(filename_.c_str(), 0000); - } - ~MakeUnreadable() { chmod(filename_.c_str(), 0644); } - private: - std::string filename_; -}; - -CONTAINED_TEST_F(LibraryTest, ContainerResolvConfNotReadable, - "myhostname", "mydomainname.org", filelist) { - ares_channel channel = nullptr; - MakeUnreadable hide("/etc/resolv.conf"); - // Unavailable /etc/resolv.conf falls back to defaults - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - return HasFailure(); -} -CONTAINED_TEST_F(LibraryTest, ContainerNsswitchConfNotReadable, - "myhostname", "mydomainname.org", filelist) { - ares_channel channel = nullptr; - // Unavailable /etc/nsswitch.conf falls back to defaults. - MakeUnreadable hide("/etc/nsswitch.conf"); - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(std::string("fb"), std::string(opts.lookups)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} -CONTAINED_TEST_F(LibraryTest, ContainerHostConfNotReadable, - "myhostname", "mydomainname.org", hostconf) { - ares_channel channel = nullptr; - // Unavailable /etc/host.conf falls back to defaults. - MakeUnreadable hide("/etc/host.conf"); - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - ares_destroy(channel); - return HasFailure(); -} -CONTAINED_TEST_F(LibraryTest, ContainerSvcConfNotReadable, - "myhostname", "mydomainname.org", svcconf) { - ares_channel channel = nullptr; - // Unavailable /etc/svc.conf falls back to defaults. - MakeUnreadable hide("/etc/svc.conf"); - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - ares_destroy(channel); - return HasFailure(); -} - -NameContentList rotateenv = { - {"/etc/resolv.conf", "nameserver 1.2.3.4\n" - "search first.com second.com\n" - "options rotate\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerRotateInit, - "myhostname", "mydomainname.org", rotateenv) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(ARES_OPT_ROTATE, (optmask & ARES_OPT_ROTATE)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -CONTAINED_TEST_F(LibraryTest, ContainerRotateOverride, - "myhostname", "mydomainname.org", rotateenv) { - ares_channel channel = nullptr; - struct ares_options opts = {0}; - int optmask = ARES_OPT_NOROTATE; - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask)); - - optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(ARES_OPT_NOROTATE, (optmask & ARES_OPT_NOROTATE)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList multiresolv = { - {"/etc/resolv.conf", " nameserver 1::2 ; ;;\n" - " domain first.com\n"}, - {"/etc/nsswitch.conf", "hosts: files\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerMultiResolvInit, - "myhostname", "mydomainname.org", multiresolv) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - std::vector<std::string> actual = GetNameServers(channel); - std::vector<std::string> expected = {"0001:0000:0000:0000:0000:0000:0000:0002"}; - EXPECT_EQ(expected, actual); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(1, opts.ndomains); - EXPECT_EQ(std::string("first.com"), std::string(opts.domains[0])); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList systemdresolv = { - {"/etc/resolv.conf", "nameserver 1.2.3.4\n" - "domain first.com\n"}, - {"/etc/nsswitch.conf", "hosts: junk resolve files\n"}}; -CONTAINED_TEST_F(LibraryTest, ContainerSystemdResolvInit, - "myhostname", "mydomainname.org", systemdresolv) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(std::string("bf"), std::string(opts.lookups)); - ares_destroy_options(&opts); - - ares_destroy(channel); - return HasFailure(); -} - -NameContentList empty = {}; // no files -CONTAINED_TEST_F(LibraryTest, ContainerEmptyInit, - "host.domain.org", "domain.org", empty) { - ares_channel channel = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel)); - std::vector<std::string> actual = GetNameServers(channel); - std::vector<std::string> expected = {"127.0.0.1"}; - EXPECT_EQ(expected, actual); - - struct ares_options opts; - int optmask = 0; - ares_save_options(channel, &opts, &optmask); - EXPECT_EQ(1, opts.ndomains); - EXPECT_EQ(std::string("domain.org"), std::string(opts.domains[0])); - EXPECT_EQ(std::string("fb"), std::string(opts.lookups)); - ares_destroy_options(&opts); - - - ares_destroy(channel); - return HasFailure(); -} - -#endif - -} // namespace test -} // namespace ares diff --git a/test/ares-test-internal.cc b/test/ares-test-internal.cc deleted file mode 100644 index 91a5646..0000000 --- a/test/ares-test-internal.cc +++ /dev/null @@ -1,387 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <stdio.h> - -extern "C" { -// Remove command-line defines of package variables for the test project... -#undef PACKAGE_NAME -#undef PACKAGE_BUGREPORT -#undef PACKAGE_STRING -#undef PACKAGE_TARNAME -// ... so we can include the library's config without symbol redefinitions. -#include "ares_setup.h" -#include "ares_nowarn.h" -#include "ares_inet_net_pton.h" -#include "ares_data.h" -#include "ares_private.h" -#include "bitncmp.h" - -#ifdef HAVE_ARPA_INET_H -#include <arpa/inet.h> -#endif -} - -#include <string> -#include <vector> - -namespace ares { -namespace test { - -#ifndef CARES_SYMBOL_HIDING -void CheckPtoN4(int size, unsigned int value, const char *input) { - struct in_addr a4; - a4.s_addr = 0; - uint32_t expected = htonl(value); - EXPECT_EQ(size, ares_inet_net_pton(AF_INET, input, &a4, sizeof(a4))) - << " for input " << input; - EXPECT_EQ(expected, a4.s_addr) << " for input " << input; -} -#endif - -TEST_F(LibraryTest, InetPtoN) { - struct in_addr a4; - struct in6_addr a6; - -#ifndef CARES_SYMBOL_HIDING - uint32_t expected; - - CheckPtoN4(4 * 8, 0x01020304, "1.2.3.4"); - CheckPtoN4(4 * 8, 0x81010101, "129.1.1.1"); - CheckPtoN4(4 * 8, 0xC0010101, "192.1.1.1"); - CheckPtoN4(4 * 8, 0xE0010101, "224.1.1.1"); - CheckPtoN4(4 * 8, 0xE1010101, "225.1.1.1"); - CheckPtoN4(4, 0xE0000000, "224"); - CheckPtoN4(4 * 8, 0xFD000000, "253"); - CheckPtoN4(4 * 8, 0xF0010101, "240.1.1.1"); - CheckPtoN4(4 * 8, 0x02030405, "02.3.4.5"); - CheckPtoN4(3 * 8, 0x01020304, "1.2.3.4/24"); - CheckPtoN4(3 * 8, 0x01020300, "1.2.3/24"); - CheckPtoN4(2 * 8, 0xa0000000, "0xa"); - CheckPtoN4(0, 0x02030405, "2.3.4.5/000"); - CheckPtoN4(1 * 8, 0x01020000, "1.2/8"); - CheckPtoN4(2 * 8, 0x01020000, "0x0102/16"); - CheckPtoN4(4 * 8, 0x02030405, "02.3.4.5"); - - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "::", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "::1", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "1234:5678::", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ff", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4", &a6, sizeof(a6))); - EXPECT_EQ(23, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4/23", &a6, sizeof(a6))); - EXPECT_EQ(3 * 8, ares_inet_net_pton(AF_INET6, "12:34::ff/24", &a6, sizeof(a6))); - EXPECT_EQ(0, ares_inet_net_pton(AF_INET6, "12:34::ff/0", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "12:34::ffff:0.2", &a6, sizeof(a6))); - EXPECT_EQ(16 * 8, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234", &a6, sizeof(a6))); - - // Various malformed versions - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, " ", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x ", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "x0", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0xXYZZY", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "xyzzy", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET+AF_INET6, "1.2.3.4", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "257.2.3.4", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "002.3.4.x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "00.3.4.x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5.6", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5.6/12", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4:5", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/120", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/1x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "2.3.4.5/x", &a4, sizeof(a4))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/240", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/02", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/2y", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/y", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff/", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":x", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ": :1234", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "::12345", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234::2345:3456::0011", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234::", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1.2.3.4", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":1234:1234:1234:1234:1234:1234:1234:1234", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, ":1234:1234:1234:1234:1234:1234:1234:1234:", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678", &a6, sizeof(a6))); - // TODO(drysdale): check whether the next two tests should give -1. - EXPECT_EQ(0, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678:5678", &a6, sizeof(a6))); - EXPECT_EQ(0, ares_inet_net_pton(AF_INET6, "1234:1234:1234:1234:1234:1234:1234:1234:5678:5678:5678", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:257.2.3.4", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:002.2.3.4", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4.5.6", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.4.5", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.z", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3001.4", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3..4", &a6, sizeof(a6))); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ffff:1.2.3.", &a6, sizeof(a6))); - - // Hex constants are allowed. - EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x01020304", &a4, sizeof(a4))); - expected = htonl(0x01020304); - EXPECT_EQ(expected, a4.s_addr); - EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x0a0b0c0d", &a4, sizeof(a4))); - expected = htonl(0x0a0b0c0d); - EXPECT_EQ(expected, a4.s_addr); - EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x0A0B0C0D", &a4, sizeof(a4))); - expected = htonl(0x0a0b0c0d); - EXPECT_EQ(expected, a4.s_addr); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0xyz", &a4, sizeof(a4))); - EXPECT_EQ(4 * 8, ares_inet_net_pton(AF_INET, "0x1122334", &a4, sizeof(a4))); - expected = htonl(0x11223340); - EXPECT_EQ(expected, a4.s_addr); // huh? - - // No room, no room. - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "1.2.3.4", &a4, sizeof(a4) - 1)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET6, "12:34::ff", &a6, sizeof(a6) - 1)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x01020304", &a4, 2)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x01020304", &a4, 0)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0a0b0c0d", &a4, 0)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x0xyz", &a4, 0)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "0x1122334", &a4, sizeof(a4) - 1)); - EXPECT_EQ(-1, ares_inet_net_pton(AF_INET, "253", &a4, sizeof(a4) - 1)); -#endif - - EXPECT_EQ(1, ares_inet_pton(AF_INET, "1.2.3.4", &a4)); - EXPECT_EQ(1, ares_inet_pton(AF_INET6, "12:34::ff", &a6)); - EXPECT_EQ(1, ares_inet_pton(AF_INET6, "12:34::ffff:1.2.3.4", &a6)); - EXPECT_EQ(0, ares_inet_pton(AF_INET, "xyzzy", &a4)); - EXPECT_EQ(-1, ares_inet_pton(AF_INET+AF_INET6, "1.2.3.4", &a4)); -} - -TEST_F(LibraryTest, FreeCorruptData) { - // ares_free_data(p) expects that there is a type field and a marker - // field in the memory before p. Feed it incorrect versions of each. - struct ares_data *data = (struct ares_data *)malloc(sizeof(struct ares_data)); - void* p = &(data->data); - - // Invalid type - data->type = (ares_datatype)99; - data->mark = ARES_DATATYPE_MARK; - ares_free_data(p); - - // Invalid marker - data->type = (ares_datatype)ARES_DATATYPE_MX_REPLY; - data->mark = ARES_DATATYPE_MARK + 1; - ares_free_data(p); - - // Null pointer - ares_free_data(nullptr); - - free(data); -} - -#ifndef CARES_SYMBOL_HIDING -TEST(LibraryInit, StrdupFailures) { - EXPECT_EQ(ARES_SUCCESS, ares_library_init(ARES_LIB_INIT_ALL)); - char* copy = ares_strdup("string"); - EXPECT_NE(nullptr, copy); - free(copy); - ares_library_cleanup(); -} - -TEST_F(LibraryTest, StrdupFailures) { - SetAllocFail(1); - char* copy = ares_strdup("string"); - EXPECT_EQ(nullptr, copy); -} - -TEST_F(LibraryTest, MallocDataFail) { - EXPECT_EQ(nullptr, ares_malloc_data((ares_datatype)99)); - SetAllocSizeFail(sizeof(struct ares_data)); - EXPECT_EQ(nullptr, ares_malloc_data(ARES_DATATYPE_MX_REPLY)); -} - -TEST(Misc, Bitncmp) { - byte a[4] = {0x80, 0x01, 0x02, 0x03}; - byte b[4] = {0x80, 0x01, 0x02, 0x04}; - byte c[4] = {0x01, 0xFF, 0x80, 0x02}; - EXPECT_GT(0, ares__bitncmp(a, b, sizeof(a)*8)); - EXPECT_LT(0, ares__bitncmp(b, a, sizeof(a)*8)); - EXPECT_EQ(0, ares__bitncmp(a, a, sizeof(a)*8)); - - for (int ii = 1; ii < (3*8+5); ii++) { - EXPECT_EQ(0, ares__bitncmp(a, b, ii)); - EXPECT_EQ(0, ares__bitncmp(b, a, ii)); - EXPECT_LT(0, ares__bitncmp(a, c, ii)); - EXPECT_GT(0, ares__bitncmp(c, a, ii)); - } - - // Last byte differs at 5th bit - EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 3)); - EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 4)); - EXPECT_EQ(0, ares__bitncmp(a, b, 3*8 + 5)); - EXPECT_GT(0, ares__bitncmp(a, b, 3*8 + 6)); - EXPECT_GT(0, ares__bitncmp(a, b, 3*8 + 7)); -} - -TEST_F(LibraryTest, Casts) { - ssize_t ssz = 100; - unsigned int u = 100; - int i = 100; - long l = 100; - - unsigned int ru = aresx_sztoui(ssz); - EXPECT_EQ(u, ru); - int ri = aresx_sztosi(ssz); - EXPECT_EQ(i, ri); - - ri = aresx_sltosi(l); - EXPECT_EQ(l, (long)ri); -} - -TEST_F(LibraryTest, ReadLine) { - TempFile temp("abcde\n0123456789\nXYZ\n012345678901234567890\n\n"); - FILE *fp = fopen(temp.filename(), "r"); - size_t bufsize = 4; - char *buf = (char *)malloc(bufsize); - - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("abcde", std::string(buf)); - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("0123456789", std::string(buf)); - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("XYZ", std::string(buf)); - SetAllocFail(1); - EXPECT_EQ(ARES_ENOMEM, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ(nullptr, buf); - - fclose(fp); - free(buf); -} - -TEST_F(LibraryTest, ReadLineNoBuf) { - TempFile temp("abcde\n0123456789\nXYZ\n012345678901234567890"); - FILE *fp = fopen(temp.filename(), "r"); - size_t bufsize = 0; - char *buf = nullptr; - - SetAllocFail(1); - EXPECT_EQ(ARES_ENOMEM, ares__read_line(fp, &buf, &bufsize)); - - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("abcde", std::string(buf)); - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("0123456789", std::string(buf)); - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("XYZ", std::string(buf)); - EXPECT_EQ(ARES_SUCCESS, ares__read_line(fp, &buf, &bufsize)); - EXPECT_EQ("012345678901234567890", std::string(buf)); - - fclose(fp); - free(buf); -} - -TEST(Misc, GetHostent) { - TempFile hostsfile("1.2.3.4 example.com \n" - " 2.3.4.5\tgoogle.com www.google.com\twww2.google.com\n" - "#comment\n" - "4.5.6.7\n" - "1.3.5.7 \n" - "::1 ipv6.com"); - struct hostent *host = nullptr; - FILE *fp = fopen(hostsfile.filename(), "r"); - ASSERT_NE(nullptr, fp); - EXPECT_EQ(ARES_EBADFAMILY, ares__get_hostent(fp, AF_INET+AF_INET6, &host)); - rewind(fp); - - EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss1; - ss1 << HostEnt(host); - EXPECT_EQ("{'example.com' aliases=[] addrs=[1.2.3.4]}", ss1.str()); - ares_free_hostent(host); - host = nullptr; - - EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss2; - ss2 << HostEnt(host); - EXPECT_EQ("{'google.com' aliases=[www.google.com, www2.google.com] addrs=[2.3.4.5]}", ss2.str()); - ares_free_hostent(host); - host = nullptr; - - EXPECT_EQ(ARES_EOF, ares__get_hostent(fp, AF_INET, &host)); - - rewind(fp); - EXPECT_EQ(ARES_SUCCESS, ares__get_hostent(fp, AF_INET6, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss3; - ss3 << HostEnt(host); - EXPECT_EQ("{'ipv6.com' aliases=[] addrs=[0000:0000:0000:0000:0000:0000:0000:0001]}", ss3.str()); - ares_free_hostent(host); - host = nullptr; - EXPECT_EQ(ARES_EOF, ares__get_hostent(fp, AF_INET6, &host)); - fclose(fp); -} - -TEST_F(LibraryTest, GetHostentAllocFail) { - TempFile hostsfile("1.2.3.4 example.com alias1 alias2\n"); - struct hostent *host = nullptr; - FILE *fp = fopen(hostsfile.filename(), "r"); - ASSERT_NE(nullptr, fp); - - for (int ii = 1; ii <= 8; ii++) { - rewind(fp); - ClearFails(); - SetAllocFail(ii); - host = nullptr; - EXPECT_EQ(ARES_ENOMEM, ares__get_hostent(fp, AF_INET, &host)) << ii; - } - fclose(fp); -} -#endif - -#ifdef CARES_EXPOSE_STATICS -// These tests access internal static functions from the library, which -// are only exposed when CARES_EXPOSE_STATICS has been configured. As such -// they are tightly couple to the internal library implementation details. -extern "C" char *ares_striendstr(const char*, const char*); -TEST_F(LibraryTest, Striendstr) { - EXPECT_EQ(nullptr, ares_striendstr("abc", "12345")); - EXPECT_NE(nullptr, ares_striendstr("abc12345", "12345")); - EXPECT_NE(nullptr, ares_striendstr("abcxyzzy", "XYZZY")); - EXPECT_NE(nullptr, ares_striendstr("xyzzy", "XYZZY")); - EXPECT_EQ(nullptr, ares_striendstr("xyxzy", "XYZZY")); - EXPECT_NE(nullptr, ares_striendstr("", "")); - const char *str = "plugh"; - EXPECT_NE(nullptr, ares_striendstr(str, str)); -} -extern "C" int single_domain(ares_channel, const char*, char**); -TEST_F(DefaultChannelTest, SingleDomain) { - TempFile aliases("www www.google.com\n"); - EnvValue with_env("HOSTALIASES", aliases.filename()); - - SetAllocSizeFail(128); - char *ptr = nullptr; - EXPECT_EQ(ARES_ENOMEM, single_domain(channel_, "www", &ptr)); - - channel_->flags |= ARES_FLAG_NOSEARCH|ARES_FLAG_NOALIASES; - EXPECT_EQ(ARES_SUCCESS, single_domain(channel_, "www", &ptr)); - EXPECT_EQ("www", std::string(ptr)); - free(ptr); - ptr = nullptr; - - SetAllocFail(1); - EXPECT_EQ(ARES_ENOMEM, single_domain(channel_, "www", &ptr)); - EXPECT_EQ(nullptr, ptr); -} -#endif - -TEST_F(DefaultChannelTest, SaveInvalidChannel) { - int saved = channel_->nservers; - channel_->nservers = -1; - struct ares_options opts; - int optmask = 0; - EXPECT_EQ(ARES_ENODATA, ares_save_options(channel_, &opts, &optmask)); - channel_->nservers = saved; -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-live.cc b/test/ares-test-live.cc deleted file mode 100644 index b8ff8eb..0000000 --- a/test/ares-test-live.cc +++ /dev/null @@ -1,594 +0,0 @@ -// This file includes tests that attempt to do real lookups -// of DNS names using the local machine's live infrastructure. -// As a result, we don't check the results very closely, to allow -// for varying local configurations. - -#include "ares-test.h" - -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif - -namespace ares { -namespace test { - -// Use the address of Google's public DNS servers as example addresses that are -// likely to be accessible everywhere/everywhen. -unsigned char gdns_addr4[4] = {0x08, 0x08, 0x08, 0x08}; -unsigned char gdns_addr6[16] = {0x20, 0x01, 0x48, 0x60, 0x48, 0x60, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x88}; - -TEST_F(DefaultChannelTest, LiveGetHostByNameV4) { - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET, result.host_.addrtype_); -} - -TEST_F(DefaultChannelTest, LiveGetHostByNameV6) { - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET6, result.host_.addrtype_); -} - -TEST_F(DefaultChannelTest, LiveGetHostByAddrV4) { - HostResult result; - ares_gethostbyaddr(channel_, gdns_addr4, sizeof(gdns_addr4), AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET, result.host_.addrtype_); -} - -TEST_F(DefaultChannelTest, LiveGetHostByAddrV6) { - HostResult result; - ares_gethostbyaddr(channel_, gdns_addr6, sizeof(gdns_addr6), AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET6, result.host_.addrtype_); -} - -TEST_F(DefaultChannelTest, LiveGetHostByNameFile) { - struct hostent *host = nullptr; - - // Still need a channel even to query /etc/hosts. - EXPECT_EQ(ARES_ENOTFOUND, - ares_gethostbyname_file(nullptr, "localhost", AF_INET, &host)); - - int rc = ares_gethostbyname_file(channel_, "bogus.mcname", AF_INET, &host); - EXPECT_EQ(nullptr, host); - EXPECT_EQ(ARES_ENOTFOUND, rc); - - rc = ares_gethostbyname_file(channel_, "localhost", AF_INET, &host); - if (rc == ARES_SUCCESS) { - EXPECT_NE(nullptr, host); - ares_free_hostent(host); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByNameV4) { - HostResult result; - ares_gethostbyname(channel_, "localhost", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - if ((result.status_ != ARES_ENOTFOUND) && (result.status_ != ARES_ECONNREFUSED)) { - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ(1, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET, result.host_.addrtype_); - EXPECT_NE(std::string::npos, result.host_.name_.find("localhost")); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByNameV6) { - HostResult result; - ares_gethostbyname(channel_, "localhost", AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - if (result.status_ == ARES_SUCCESS) { - EXPECT_EQ(1, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET6, result.host_.addrtype_); - std::stringstream ss; - ss << HostEnt(result.host_); - EXPECT_NE(std::string::npos, result.host_.name_.find("localhost")); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByNameIPV4) { - HostResult result; - ares_gethostbyname(channel_, "127.0.0.1", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ(1, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET, result.host_.addrtype_); - std::stringstream ss; - ss << HostEnt(result.host_); - EXPECT_EQ("{'127.0.0.1' aliases=[] addrs=[127.0.0.1]}", ss.str()); -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByNameIPV6) { - HostResult result; - ares_gethostbyname(channel_, "::1", AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - if (result.status_ != ARES_ENOTFOUND) { - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ(1, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET6, result.host_.addrtype_); - std::stringstream ss; - ss << HostEnt(result.host_); - EXPECT_EQ("{'::1' aliases=[] addrs=[0000:0000:0000:0000:0000:0000:0000:0001]}", ss.str()); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostFailFamily) { - HostResult result; - ares_gethostbyname(channel_, "127.0.0.1", AF_INET+AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTIMP, result.status_); -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByAddrV4) { - HostResult result; - struct in_addr addr; - addr.s_addr = htonl(INADDR_LOOPBACK); - ares_gethostbyaddr(channel_, &addr, sizeof(addr), AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - if (result.status_ != ARES_ENOTFOUND) { - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET, result.host_.addrtype_); - EXPECT_NE(std::string::npos, - result.host_.name_.find("localhost")); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetLocalhostByAddrV6) { - HostResult result; - struct in6_addr addr; - memset(&addr, 0, sizeof(addr)); - addr.s6_addr[15] = 1; // in6addr_loopback - ares_gethostbyaddr(channel_, &addr, sizeof(addr), AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - if (result.status_ != ARES_ENOTFOUND) { - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_LT(0, (int)result.host_.addrs_.size()); - EXPECT_EQ(AF_INET6, result.host_.addrtype_); - EXPECT_NE(std::string::npos, - result.host_.name_.find("localhost")); - } -} - -TEST_P(DefaultChannelModeTest, LiveGetHostByAddrFailFamily) { - HostResult result; - unsigned char addr[4] = {8, 8, 8, 8}; - ares_gethostbyaddr(channel_, addr, sizeof(addr), AF_INET6+AF_INET, - HostCallback, &result); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTIMP, result.status_); -} - -TEST_P(DefaultChannelModeTest, LiveGetHostByAddrFailAddrSize) { - HostResult result; - unsigned char addr[4] = {8, 8, 8, 8}; - ares_gethostbyaddr(channel_, addr, sizeof(addr) - 1, AF_INET, - HostCallback, &result); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTIMP, result.status_); -} - -TEST_P(DefaultChannelModeTest, LiveGetHostByAddrFailAlloc) { - HostResult result; - unsigned char addr[4] = {8, 8, 8, 8}; - SetAllocFail(1); - ares_gethostbyaddr(channel_, addr, sizeof(addr), AF_INET, - HostCallback, &result); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOMEM, result.status_); -} - -INSTANTIATE_TEST_CASE_P(Modes, DefaultChannelModeTest, - ::testing::Values("f", "b", "fb", "bf")); - -TEST_F(DefaultChannelTest, LiveSearchA) { - SearchResult result; - ares_search(channel_, "www.youtube.com.", ns_c_in, ns_t_a, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchEmptyA) { - SearchResult result; - ares_search(channel_, "", ns_c_in, ns_t_a, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_NE(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchNS) { - SearchResult result; - ares_search(channel_, "google.com.", ns_c_in, ns_t_ns, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchMX) { - SearchResult result; - ares_search(channel_, "google.com.", ns_c_in, ns_t_mx, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchTXT) { - SearchResult result; - ares_search(channel_, "google.com.", ns_c_in, ns_t_txt, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchSOA) { - SearchResult result; - ares_search(channel_, "google.com.", ns_c_in, ns_t_soa, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchSRV) { - SearchResult result; - ares_search(channel_, "_imap._tcp.gmail.com.", ns_c_in, ns_t_srv, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveSearchANY) { - SearchResult result; - ares_search(channel_, "google.com.", ns_c_in, ns_t_any, - SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - if (verbose) std::cerr << "8.8.8.8:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4NoPort) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(0); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - if (verbose) std::cerr << "8.8.8.8:0 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4UnassignedPort) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(4); // Unassigned at IANA - sockaddr.sin_addr.s_addr = htonl(0x08080808); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - if (verbose) std::cerr << "8.8.8.8:4 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV6Both) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - memcpy(sockaddr.sin6_addr.s6_addr, gdns_addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_TCP|ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_NOFQDN, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - if (verbose) std::cerr << "[2001:4860:4860::8888]:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV6Neither) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - memcpy(sockaddr.sin6_addr.s6_addr, gdns_addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_TCP|ARES_NI_NOFQDN, // Neither specified => assume lookup host. - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - if (verbose) std::cerr << "[2001:4860:4860::8888]:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4Numeric) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_TCP|ARES_NI_NUMERICHOST, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("8.8.8.8", result.node_); - if (verbose) std::cerr << "8.8.8.8:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV6Numeric) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - memcpy(sockaddr.sin6_addr.s6_addr, gdns_addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_DCCP|ARES_NI_NUMERICHOST, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("2001:4860:4860::8888%0", result.node_); - if (verbose) std::cerr << "[2001:4860:4860::8888]:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV6LinkLocal) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - unsigned char addr6[16] = {0xfe, 0x80, 0x01, 0x02, 0x01, 0x02, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x04}; - memcpy(sockaddr.sin6_addr.s6_addr, addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_DCCP|ARES_NI_NUMERICHOST, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("fe80:102:102::304%0", result.node_); - if (verbose) std::cerr << "[fe80:102:102::304]:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4NotFound) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(4); // Port 4 unassigned at IANA - // RFC5737 says 192.0.2.0 should not be used publically. - sockaddr.sin_addr.s_addr = htonl(0xC0000200); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("192.0.2.0", result.node_); - if (verbose) std::cerr << "192.0.2.0:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV4NotFoundFail) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - // RFC5737 says 192.0.2.0 should not be used publically. - sockaddr.sin_addr.s_addr = htonl(0xC0000200); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP|ARES_NI_NAMEREQD, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTFOUND, result.status_); -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoV6NotFound) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - // 2001:db8::/32 is only supposed to be used in documentation. - unsigned char addr6[16] = {0x20, 0x01, 0x0d, 0xb8, 0x01, 0x02, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x04}; - memcpy(sockaddr.sin6_addr.s6_addr, addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("2001:db8:102::304%0", result.node_); - if (verbose) std::cerr << "[2001:db8:102::304]:53 => " << result.node_ << "/" << result.service_ << std::endl; -} - -TEST_F(DefaultChannelTest, LiveGetNameInvalidFamily) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6 + AF_INET; - sockaddr.sin6_port = htons(53); - memcpy(sockaddr.sin6_addr.s6_addr, gdns_addr6, 16); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTIMP, result.status_); -} - -TEST_F(DefaultChannelTest, LiveGetNameInvalidFlags) { - NameInfoResult result; - struct sockaddr_in6 sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin6_family = AF_INET6; - sockaddr.sin6_port = htons(53); - memcpy(sockaddr.sin6_addr.s6_addr, gdns_addr6, 16); - // Ask for both a name-required, and a numeric host. - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP|ARES_NI_NUMERICHOST|ARES_NI_NAMEREQD, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_EBADFLAGS, result.status_); -} - -TEST_F(DefaultChannelTest, LiveGetServiceInfo) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - // Just look up service info - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPSERVICE|ARES_NI_SCTP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("", result.node_); -} - -TEST_F(DefaultChannelTest, LiveGetServiceInfoNumeric) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - // Just look up service info - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPSERVICE|ARES_NI_SCTP|ARES_NI_NUMERICSERV, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - EXPECT_EQ("", result.node_); - EXPECT_EQ("53", result.service_); -} - -TEST_F(DefaultChannelTest, LiveGetNameInfoAllocFail) { - NameInfoResult result; - struct sockaddr_in sockaddr; - memset(&sockaddr, 0, sizeof(sockaddr)); - sockaddr.sin_family = AF_INET; - sockaddr.sin_port = htons(53); - sockaddr.sin_addr.s_addr = htonl(0x08080808); - SetAllocFail(1); - ares_getnameinfo(channel_, (const struct sockaddr*)&sockaddr, sizeof(sockaddr), - ARES_NI_LOOKUPHOST|ARES_NI_LOOKUPSERVICE|ARES_NI_UDP, - NameInfoCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOMEM, result.status_); -} - -TEST_F(DefaultChannelTest, GetSock) { - ares_socket_t socks[3] = {-1, -1, -1}; - int bitmask = ares_getsock(channel_, socks, 3); - EXPECT_EQ(0, bitmask); - bitmask = ares_getsock(channel_, nullptr, 0); - EXPECT_EQ(0, bitmask); - - // Ask again with a pending query. - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - bitmask = ares_getsock(channel_, socks, 3); - EXPECT_NE(0, bitmask); - bitmask = ares_getsock(channel_, nullptr, 0); - EXPECT_EQ(0, bitmask); - - Process(); -} - -TEST_F(LibraryTest, GetTCPSock) { - ares_channel channel; - struct ares_options opts = {0}; - opts.tcp_port = 53; - opts.flags = ARES_FLAG_USEVC; - int optmask = ARES_OPT_TCP_PORT | ARES_OPT_FLAGS; - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel, &opts, optmask)); - EXPECT_NE(nullptr, channel); - - ares_socket_t socks[3] = {-1, -1, -1}; - int bitmask = ares_getsock(channel, socks, 3); - EXPECT_EQ(0, bitmask); - bitmask = ares_getsock(channel, nullptr, 0); - EXPECT_EQ(0, bitmask); - - // Ask again with a pending query. - HostResult result; - ares_gethostbyname(channel, "www.google.com.", AF_INET, HostCallback, &result); - bitmask = ares_getsock(channel, socks, 3); - EXPECT_NE(0, bitmask); - bitmask = ares_getsock(channel, nullptr, 0); - EXPECT_EQ(0, bitmask); - - ProcessWork(channel, NoExtraFDs, nullptr); - - ares_destroy(channel); -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-main.cc b/test/ares-test-main.cc deleted file mode 100644 index f7e90cb..0000000 --- a/test/ares-test-main.cc +++ /dev/null @@ -1,37 +0,0 @@ -#include <signal.h> -#include <stdlib.h> - -#include "ares-test.h" - -int main(int argc, char* argv[]) { - std::vector<char*> gtest_argv = {argv[0]}; - for (int ii = 1; ii < argc; ii++) { - if (strcmp(argv[ii], "-v") == 0) { - ares::test::verbose = true; - } else if ((strcmp(argv[ii], "-p") == 0) && (ii + 1 < argc)) { - ii++; - ares::test::mock_port = atoi(argv[ii]); - } else { - gtest_argv.push_back(argv[ii]); - } - } - int gtest_argc = gtest_argv.size(); - gtest_argv.push_back(nullptr); - ::testing::InitGoogleTest(>est_argc, gtest_argv.data()); - -#ifdef WIN32 - WORD wVersionRequested = MAKEWORD(2, 2); - WSADATA wsaData; - WSAStartup(wVersionRequested, &wsaData); -#else - signal(SIGPIPE, SIG_IGN); -#endif - - int rc = RUN_ALL_TESTS(); - -#ifdef WIN32 - WSACleanup(); -#endif - - return rc; -} diff --git a/test/ares-test-misc.cc b/test/ares-test-misc.cc deleted file mode 100644 index 5e5bc0b..0000000 --- a/test/ares-test-misc.cc +++ /dev/null @@ -1,473 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <string> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(DefaultChannelTest, GetServers) { - std::vector<std::string> servers = GetNameServers(channel_); - if (verbose) { - for (const std::string& server : servers) { - std::cerr << "Nameserver: " << server << std::endl; - } - } -} - -TEST_F(DefaultChannelTest, GetServersFailures) { - EXPECT_EQ(ARES_SUCCESS, - ares_set_servers_csv(channel_, "1.2.3.4,2.3.4.5")); - struct ares_addr_node* servers = nullptr; - SetAllocFail(1); - EXPECT_EQ(ARES_ENOMEM, ares_get_servers(channel_, &servers)); - SetAllocFail(2); - EXPECT_EQ(ARES_ENOMEM, ares_get_servers(channel_, &servers)); - EXPECT_EQ(ARES_ENODATA, ares_get_servers(nullptr, &servers)); -} - -TEST_F(DefaultChannelTest, SetServers) { - EXPECT_EQ(ARES_SUCCESS, ares_set_servers(channel_, nullptr)); - std::vector<std::string> empty; - EXPECT_EQ(empty, GetNameServers(channel_)); - - struct ares_addr_node server1; - struct ares_addr_node server2; - server1.next = &server2; - server1.family = AF_INET; - server1.addr.addr4.s_addr = htonl(0x01020304); - server2.next = nullptr; - server2.family = AF_INET; - server2.addr.addr4.s_addr = htonl(0x02030405); - EXPECT_EQ(ARES_ENODATA, ares_set_servers(nullptr, &server1)); - - EXPECT_EQ(ARES_SUCCESS, ares_set_servers(channel_, &server1)); - std::vector<std::string> expected = {"1.2.3.4", "2.3.4.5"}; - EXPECT_EQ(expected, GetNameServers(channel_)); -} - -TEST_F(DefaultChannelTest, SetServersPorts) { - EXPECT_EQ(ARES_SUCCESS, ares_set_servers_ports(channel_, nullptr)); - std::vector<std::string> empty; - EXPECT_EQ(empty, GetNameServers(channel_)); - - struct ares_addr_port_node server1; - struct ares_addr_port_node server2; - server1.next = &server2; - server1.family = AF_INET; - server1.addr.addr4.s_addr = htonl(0x01020304); - server1.udp_port = 111; - server1.tcp_port = 111; - server2.next = nullptr; - server2.family = AF_INET; - server2.addr.addr4.s_addr = htonl(0x02030405); - server2.udp_port = 0; - server2.tcp_port = 0;; - EXPECT_EQ(ARES_ENODATA, ares_set_servers_ports(nullptr, &server1)); - - EXPECT_EQ(ARES_SUCCESS, ares_set_servers_ports(channel_, &server1)); - std::vector<std::string> expected = {"1.2.3.4:111", "2.3.4.5"}; - EXPECT_EQ(expected, GetNameServers(channel_)); -} - -TEST_F(DefaultChannelTest, SetServersCSV) { - EXPECT_EQ(ARES_ENODATA, ares_set_servers_csv(nullptr, "1.2.3.4")); - EXPECT_EQ(ARES_ENODATA, ares_set_servers_csv(nullptr, "xyzzy,plugh")); - EXPECT_EQ(ARES_ENODATA, ares_set_servers_csv(nullptr, "256.1.2.3")); - EXPECT_EQ(ARES_ENODATA, ares_set_servers_csv(nullptr, "1.2.3.4.5")); - EXPECT_EQ(ARES_ENODATA, ares_set_servers_csv(nullptr, "1:2:3:4:5")); - - EXPECT_EQ(ARES_SUCCESS, - ares_set_servers_csv(channel_, "1.2.3.4,0102:0304:0506:0708:0910:1112:1314:1516,2.3.4.5")); - std::vector<std::string> expected = {"1.2.3.4", "0102:0304:0506:0708:0910:1112:1314:1516", "2.3.4.5"}; - EXPECT_EQ(expected, GetNameServers(channel_)); - - // Same, with spaces - EXPECT_EQ(ARES_EBADSTR, - ares_set_servers_csv(channel_, "1.2.3.4 , 0102:0304:0506:0708:0910:1112:1314:1516, 2.3.4.5")); - - // Same, with ports - EXPECT_EQ(ARES_SUCCESS, - ares_set_servers_csv(channel_, "1.2.3.4:54,[0102:0304:0506:0708:0910:1112:1314:1516]:80,2.3.4.5:55")); - EXPECT_EQ(expected, GetNameServers(channel_)); - EXPECT_EQ(ARES_SUCCESS, - ares_set_servers_ports_csv(channel_, "1.2.3.4:54,[0102:0304:0506:0708:0910:1112:1314:1516]:80,2.3.4.5:55")); - std::vector<std::string> expected2 = {"1.2.3.4:54", "[0102:0304:0506:0708:0910:1112:1314:1516]:80", "2.3.4.5:55"}; - EXPECT_EQ(expected2, GetNameServers(channel_)); - - // Should survive duplication - ares_channel channel2; - EXPECT_EQ(ARES_SUCCESS, ares_dup(&channel2, channel_)); - EXPECT_EQ(expected2, GetNameServers(channel2)); - ares_destroy(channel2); - - // Allocation failure cases - for (int fail = 1; fail <= 5; fail++) { - SetAllocFail(fail); - EXPECT_EQ(ARES_ENOMEM, - ares_set_servers_csv(channel_, "1.2.3.4,0102:0304:0506:0708:0910:1112:1314:1516,2.3.4.5")); - } - - // Blank servers - EXPECT_EQ(ARES_SUCCESS, ares_set_servers_csv(channel_, "")); - std::vector<std::string> none; - EXPECT_EQ(none, GetNameServers(channel_)); - - EXPECT_EQ(ARES_EBADSTR, ares_set_servers_csv(channel_, "2.3.4.5,1.2.3.4:,3.4.5.6")); - EXPECT_EQ(ARES_EBADSTR, ares_set_servers_csv(channel_, "2.3.4.5,1.2.3.4:Z,3.4.5.6")); -} - -TEST_F(DefaultChannelTest, TimeoutValue) { - struct timeval tinfo; - tinfo.tv_sec = 0; - tinfo.tv_usec = 0; - struct timeval tmax; - tmax.tv_sec = 0; - tmax.tv_usec = 10; - struct timeval* pt; - - // No timers => get max back. - pt = ares_timeout(channel_, &tmax, &tinfo); - EXPECT_EQ(&tmax, pt); - EXPECT_EQ(0, pt->tv_sec); - EXPECT_EQ(10, pt->tv_usec); - - pt = ares_timeout(channel_, nullptr, &tinfo); - EXPECT_EQ(nullptr, pt); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - - // Now there's a timer running. - pt = ares_timeout(channel_, &tmax, &tinfo); - EXPECT_EQ(&tmax, pt); - EXPECT_EQ(0, pt->tv_sec); - EXPECT_EQ(10, pt->tv_usec); - - tmax.tv_sec = 100; - pt = ares_timeout(channel_, &tmax, &tinfo); - EXPECT_EQ(&tinfo, pt); - - pt = ares_timeout(channel_, nullptr, &tinfo); - EXPECT_EQ(&tinfo, pt); - - Process(); -} - -TEST_F(LibraryTest, InetNtoP) { - struct in_addr addr; - addr.s_addr = htonl(0x01020304); - char buffer[256]; - EXPECT_EQ(buffer, ares_inet_ntop(AF_INET, &addr, buffer, sizeof(buffer))); - EXPECT_EQ("1.2.3.4", std::string(buffer)); -} - -TEST_F(LibraryTest, Mkquery) { - byte* p; - int len; - ares_mkquery("example.com", ns_c_in, ns_t_a, 0x1234, 0, &p, &len); - std::vector<byte> data(p, p + len); - ares_free_string(p); - - std::string actual = PacketToString(data); - DNSPacket pkt; - pkt.set_qid(0x1234).add_question(new DNSQuestion("example.com", ns_t_a)); - std::string expected = PacketToString(pkt.data()); - EXPECT_EQ(expected, actual); -} - -TEST_F(LibraryTest, CreateQuery) { - byte* p; - int len; - EXPECT_EQ(ARES_SUCCESS, - ares_create_query("exam\\@le.com", ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - std::vector<byte> data(p, p + len); - ares_free_string(p); - - std::string actual = PacketToString(data); - DNSPacket pkt; - pkt.set_qid(0x1234).add_question(new DNSQuestion("exam@le.com", ns_t_a)); - std::string expected = PacketToString(pkt.data()); - EXPECT_EQ(expected, actual); -} - -TEST_F(LibraryTest, CreateQueryTrailingEscapedDot) { - byte* p; - int len; - EXPECT_EQ(ARES_SUCCESS, - ares_create_query("example.com\\.", ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - std::vector<byte> data(p, p + len); - ares_free_string(p); - - std::string actual = PacketToString(data); - EXPECT_EQ("REQ QRY Q:{'example.com\\.' IN A}", actual); -} - -TEST_F(LibraryTest, CreateQueryFailures) { - byte* p; - int len; - // RC1035 has a 255 byte limit on names. - std::string longname; - for (int ii = 0; ii < 17; ii++) { - longname += "fedcba9876543210"; - } - p = nullptr; - EXPECT_EQ(ARES_EBADNAME, - ares_create_query(longname.c_str(), ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - if (p) ares_free_string(p); - - SetAllocFail(1); - - p = nullptr; - EXPECT_EQ(ARES_ENOMEM, - ares_create_query("example.com", ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - if (p) ares_free_string(p); - - // 63-char limit on a single label - std::string longlabel = "a.a123456789b123456789c123456789d123456789e123456789f123456789g123456789.org"; - p = nullptr; - EXPECT_EQ(ARES_EBADNAME, - ares_create_query(longlabel.c_str(), ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - if (p) ares_free_string(p); - - // Empty non-terminal label - p = nullptr; - EXPECT_EQ(ARES_EBADNAME, - ares_create_query("example..com", ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 0)); - if (p) ares_free_string(p); -} - -TEST_F(DefaultChannelTest, SendFailure) { - unsigned char buf[2]; - SearchResult result; - ares_send(channel_, buf, sizeof(buf), SearchCallback, &result); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_EBADQUERY, result.status_); -} - -std::string ExpandName(const std::vector<byte>& data, int offset, - long *enclen) { - char *name = nullptr; - int rc = ares_expand_name(data.data() + offset, data.data(), data.size(), - &name, enclen); - EXPECT_EQ(ARES_SUCCESS, rc); - std::string result; - if (rc == ARES_SUCCESS) { - result = name; - } else { - result = "<error>"; - } - free(name); - return result; -} - -TEST_F(LibraryTest, ExpandName) { - long enclen; - std::vector<byte> data1 = {1, 'a', 2, 'b', 'c', 3, 'd', 'e', 'f', 0}; - EXPECT_EQ("a.bc.def", ExpandName(data1, 0, &enclen)); - EXPECT_EQ(data1.size(), enclen); - - std::vector<byte> data2 = {0}; - EXPECT_EQ("", ExpandName(data2, 0, &enclen)); - EXPECT_EQ(1, enclen); - - // Complete name indirection - std::vector<byte> data3 = {0x12, 0x23, - 3, 'd', 'e', 'f', 0, - 0xC0, 2}; - EXPECT_EQ("def", ExpandName(data3, 2, &enclen)); - EXPECT_EQ(5, enclen); - EXPECT_EQ("def", ExpandName(data3, 7, &enclen)); - EXPECT_EQ(2, enclen); - - // One label then indirection - std::vector<byte> data4 = {0x12, 0x23, - 3, 'd', 'e', 'f', 0, - 1, 'a', 0xC0, 2}; - EXPECT_EQ("def", ExpandName(data4, 2, &enclen)); - EXPECT_EQ(5, enclen); - EXPECT_EQ("a.def", ExpandName(data4, 7, &enclen)); - EXPECT_EQ(4, enclen); - - // Two labels then indirection - std::vector<byte> data5 = {0x12, 0x23, - 3, 'd', 'e', 'f', 0, - 1, 'a', 1, 'b', 0xC0, 2}; - EXPECT_EQ("def", ExpandName(data5, 2, &enclen)); - EXPECT_EQ(5, enclen); - EXPECT_EQ("a.b.def", ExpandName(data5, 7, &enclen)); - EXPECT_EQ(6, enclen); - - // Empty name, indirection to empty name - std::vector<byte> data6 = {0x12, 0x23, - 0, - 0xC0, 2}; - EXPECT_EQ("", ExpandName(data6, 2, &enclen)); - EXPECT_EQ(1, enclen); - EXPECT_EQ("", ExpandName(data6, 3, &enclen)); - EXPECT_EQ(2, enclen); -} - -TEST_F(LibraryTest, ExpandNameFailure) { - std::vector<byte> data1 = {0x03, 'c', 'o', 'm', 0x00}; - char *name = nullptr; - long enclen; - SetAllocFail(1); - EXPECT_EQ(ARES_ENOMEM, - ares_expand_name(data1.data(), data1.data(), data1.size(), - &name, &enclen)); - - // Empty packet - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data1.data(), data1.data(), 0, &name, &enclen)); - - // Start beyond enclosing data - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data1.data() + data1.size(), data1.data(), data1.size(), - &name, &enclen)); - - // Length beyond size of enclosing data - std::vector<byte> data2a = {0x13, 'c', 'o', 'm', 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data2a.data(), data2a.data(), data2a.size(), - &name, &enclen)); - std::vector<byte> data2b = {0x1}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data2b.data(), data2b.data(), data2b.size(), - &name, &enclen)); - std::vector<byte> data2c = {0xC0}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data2c.data(), data2c.data(), data2c.size(), - &name, &enclen)); - - // Indirection beyond enclosing data - std::vector<byte> data3a = {0xC0, 0x02}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data3a.data(), data3a.data(), data3a.size(), - &name, &enclen)); - std::vector<byte> data3b = {0xC0, 0x0A, 'c', 'o', 'm', 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data3b.data(), data3b.data(), data3b.size(), - &name, &enclen)); - - // Invalid top bits in label length - std::vector<byte> data4 = {0x03, 'c', 'o', 'm', 0x00, 0x80, 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data4.data() + 5, data4.data(), data4.size(), - &name, &enclen)); - - // Label too long: 64-byte label, with invalid top 2 bits of length (01). - std::vector<byte> data5 = {0x40, - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', - 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data5.data(), data5.data(), data5.size(), - &name, &enclen)) << name; - - // Incomplete indirect length - std::vector<byte> data6 = {0x03, 'c', 'o', 'm', 0x00, 0xC0}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data6.data() + 5, data6.data(), data6.size(), - &name, &enclen)); - - // Indirection loops - std::vector<byte> data7 = {0xC0, 0x02, 0xC0, 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data7.data(), data7.data(), data7.size(), - &name, &enclen)); - std::vector<byte> data8 = {3, 'd', 'e', 'f', 0xC0, 0x08, 0x00, 0x00, - 3, 'a', 'b', 'c', 0xC0, 0x00}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data8.data(), data8.data(), data8.size(), - &name, &enclen)); - std::vector<byte> data9 = {0x12, 0x23, // start 2 bytes in - 3, 'd', 'e', 'f', 0xC0, 0x02}; - EXPECT_EQ(ARES_EBADNAME, - ares_expand_name(data9.data() + 2, data9.data(), data9.size(), - &name, &enclen)); -} - -TEST_F(LibraryTest, CreateEDNSQuery) { - byte* p; - int len; - EXPECT_EQ(ARES_SUCCESS, - ares_create_query("example.com", ns_c_in, ns_t_a, 0x1234, 0, - &p, &len, 1280)); - std::vector<byte> data(p, p + len); - ares_free_string(p); - - std::string actual = PacketToString(data); - DNSPacket pkt; - pkt.set_qid(0x1234).add_question(new DNSQuestion("example.com", ns_t_a)) - .add_additional(new DNSOptRR(0, 1280)); - std::string expected = PacketToString(pkt.data()); - EXPECT_EQ(expected, actual); -} - -TEST_F(LibraryTest, CreateRootQuery) { - byte* p; - int len; - ares_create_query(".", ns_c_in, ns_t_a, 0x1234, 0, &p, &len, 0); - std::vector<byte> data(p, p + len); - ares_free_string(p); - - std::string actual = PacketToString(data); - DNSPacket pkt; - pkt.set_qid(0x1234).add_question(new DNSQuestion("", ns_t_a)); - std::string expected = PacketToString(pkt.data()); - EXPECT_EQ(expected, actual); -} - -TEST_F(LibraryTest, Version) { - // Assume linked to same version - EXPECT_EQ(std::string(ARES_VERSION_STR), - std::string(ares_version(nullptr))); - int version; - ares_version(&version); - EXPECT_EQ(ARES_VERSION, version); -} - -TEST_F(LibraryTest, Strerror) { - EXPECT_EQ("Successful completion", - std::string(ares_strerror(ARES_SUCCESS))); - EXPECT_EQ("DNS query cancelled", - std::string(ares_strerror(ARES_ECANCELLED))); - EXPECT_EQ("unknown", - std::string(ares_strerror(99))); -} - -TEST_F(LibraryTest, ExpandString) { - std::vector<byte> s1 = { 3, 'a', 'b', 'c'}; - char* result = nullptr; - long len; - EXPECT_EQ(ARES_SUCCESS, - ares_expand_string(s1.data(), s1.data(), s1.size(), - (unsigned char**)&result, &len)); - EXPECT_EQ("abc", std::string(result)); - EXPECT_EQ(1 + 3, len); // amount of data consumed includes 1 byte len - free(result); - result = nullptr; - EXPECT_EQ(ARES_EBADSTR, - ares_expand_string(s1.data() + 1, s1.data(), s1.size(), - (unsigned char**)&result, &len)); - EXPECT_EQ(ARES_EBADSTR, - ares_expand_string(s1.data() + 4, s1.data(), s1.size(), - (unsigned char**)&result, &len)); - SetAllocSizeFail(3 + 1); - EXPECT_EQ(ARES_ENOMEM, - ares_expand_string(s1.data(), s1.data(), s1.size(), - (unsigned char**)&result, &len)); -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-mock.cc b/test/ares-test-mock.cc deleted file mode 100644 index 2cbe6b4..0000000 --- a/test/ares-test-mock.cc +++ /dev/null @@ -1,1161 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -using testing::InvokeWithoutArgs; -using testing::DoAll; - -namespace ares { -namespace test { - -TEST_P(MockChannelTest, Basic) { - std::vector<byte> reply = { - 0x00, 0x00, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // 1 question - 0x00, 0x01, // 1 answer RRs - 0x00, 0x00, // 0 authority RRs - 0x00, 0x00, // 0 additional RRs - // Question - 0x03, 'w', 'w', 'w', - 0x06, 'g', 'o', 'o', 'g', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer - 0x03, 'w', 'w', 'w', - 0x06, 'g', 'o', 'o', 'g', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - 0x00, 0x00, 0x01, 0x00, // TTL - 0x00, 0x04, // rdata length - 0x01, 0x02, 0x03, 0x04 - }; - - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReplyData(&server_, reply)); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -// UDP only so mock server doesn't get confused by concatenated requests -TEST_P(MockUDPChannelTest, ParallelLookups) { - DNSPacket rsp1; - rsp1.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp1)); - DNSPacket rsp2; - rsp2.set_response().set_aa() - .add_question(new DNSQuestion("www.example.com", ns_t_a)) - .add_answer(new DNSARR("www.example.com", 100, {1, 2, 3, 4})); - ON_CALL(server_, OnRequest("www.example.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp2)); - - HostResult result1; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result1); - HostResult result2; - ares_gethostbyname(channel_, "www.example.com.", AF_INET, HostCallback, &result2); - HostResult result3; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result3); - Process(); - EXPECT_TRUE(result1.done_); - EXPECT_TRUE(result2.done_); - EXPECT_TRUE(result3.done_); - std::stringstream ss1; - ss1 << result1.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[2.3.4.5]}", ss1.str()); - std::stringstream ss2; - ss2 << result2.host_; - EXPECT_EQ("{'www.example.com' aliases=[] addrs=[1.2.3.4]}", ss2.str()); - std::stringstream ss3; - ss3 << result3.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[2.3.4.5]}", ss3.str()); -} - -// UDP to TCP specific test -TEST_P(MockUDPChannelTest, TruncationRetry) { - DNSPacket rsptruncated; - rsptruncated.set_response().set_aa().set_tc() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - DNSPacket rspok; - rspok.set_response() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {1, 2, 3, 4})); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsptruncated)) - .WillOnce(SetReply(&server_, &rspok)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -static int sock_cb_count = 0; -static int SocketConnectCallback(ares_socket_t fd, int type, void *data) { - int rc = *(int*)data; - if (verbose) std::cerr << "SocketConnectCallback(" << fd << ") invoked" << std::endl; - sock_cb_count++; - return rc; -} - -TEST_P(MockChannelTest, SockCallback) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {2, 3, 4, 5})); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - - // Get notified of new sockets - int rc = ARES_SUCCESS; - ares_set_socket_callback(channel_, SocketConnectCallback, &rc); - - HostResult result; - sock_cb_count = 0; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_EQ(1, sock_cb_count); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, SockFailCallback) { - // Notification of new sockets gives an error. - int rc = -1; - ares_set_socket_callback(channel_, SocketConnectCallback, &rc); - - HostResult result; - sock_cb_count = 0; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_LT(1, sock_cb_count); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ECONNREFUSED, result.status_); -} - -static int sock_config_cb_count = 0; -static int SocketConfigureCallback(ares_socket_t fd, int type, void *data) { - int rc = *(int*)data; - if (verbose) std::cerr << "SocketConfigureCallback(" << fd << ") invoked" << std::endl; - sock_config_cb_count++; - return rc; -} - -TEST_P(MockChannelTest, SockConfigureCallback) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {2, 3, 4, 5})); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - - // Get notified of new sockets - int rc = ARES_SUCCESS; - ares_set_socket_configure_callback(channel_, SocketConfigureCallback, &rc); - - HostResult result; - sock_config_cb_count = 0; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_EQ(1, sock_config_cb_count); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, SockConfigureFailCallback) { - // Notification of new sockets gives an error. - int rc = -1; - ares_set_socket_configure_callback(channel_, SocketConfigureCallback, &rc); - - HostResult result; - sock_config_cb_count = 0; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_LT(1, sock_config_cb_count); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ECONNREFUSED, result.status_); -} - -// TCP only to prevent retries -TEST_P(MockTCPChannelTest, MalformedResponse) { - std::vector<byte> one = {0x01}; - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReplyData(&server_, one)); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ETIMEOUT, result.status_); -} - -TEST_P(MockTCPChannelTest, FormErrResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_formerr); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_EFORMERR, result.status_); -} - -TEST_P(MockTCPChannelTest, ServFailResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_servfail); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - // ARES_FLAG_NOCHECKRESP not set, so SERVFAIL consumed - EXPECT_EQ(ARES_ECONNREFUSED, result.status_); -} - -TEST_P(MockTCPChannelTest, NotImplResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_notimpl); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - // ARES_FLAG_NOCHECKRESP not set, so NOTIMPL consumed - EXPECT_EQ(ARES_ECONNREFUSED, result.status_); -} - -TEST_P(MockTCPChannelTest, RefusedResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_refused); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - // ARES_FLAG_NOCHECKRESP not set, so REFUSED consumed - EXPECT_EQ(ARES_ECONNREFUSED, result.status_); -} - -TEST_P(MockTCPChannelTest, YXDomainResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_yxdomain); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENODATA, result.status_); -} - -class MockExtraOptsTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface< std::pair<int, bool> > { - public: - MockExtraOptsTest() - : MockChannelOptsTest(1, GetParam().first, GetParam().second, - FillOptions(&opts_), - ARES_OPT_SOCK_SNDBUF|ARES_OPT_SOCK_RCVBUF) {} - static struct ares_options* FillOptions(struct ares_options * opts) { - memset(opts, 0, sizeof(struct ares_options)); - // Set a few options that affect socket communications - opts->socket_send_buffer_size = 514; - opts->socket_receive_buffer_size = 514; - return opts; - } - private: - struct ares_options opts_; -}; - -TEST_P(MockExtraOptsTest, SimpleQuery) { - ares_set_local_ip4(channel_, 0x7F000001); - byte addr6[16] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}; - ares_set_local_ip6(channel_, addr6); - ares_set_local_dev(channel_, "dummy"); - - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp)); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -class MockFlagsChannelOptsTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface< std::pair<int, bool> > { - public: - MockFlagsChannelOptsTest(int flags) - : MockChannelOptsTest(1, GetParam().first, GetParam().second, - FillOptions(&opts_, flags), ARES_OPT_FLAGS) {} - static struct ares_options* FillOptions(struct ares_options * opts, int flags) { - memset(opts, 0, sizeof(struct ares_options)); - opts->flags = flags; - return opts; - } - private: - struct ares_options opts_; -}; - -class MockNoCheckRespChannelTest : public MockFlagsChannelOptsTest { - public: - MockNoCheckRespChannelTest() : MockFlagsChannelOptsTest(ARES_FLAG_NOCHECKRESP) {} -}; - -TEST_P(MockNoCheckRespChannelTest, ServFailResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_servfail); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ESERVFAIL, result.status_); -} - -TEST_P(MockNoCheckRespChannelTest, NotImplResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_notimpl); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOTIMP, result.status_); -} - -TEST_P(MockNoCheckRespChannelTest, RefusedResponse) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - rsp.set_rcode(ns_r_refused); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_EREFUSED, result.status_); -} - -class MockEDNSChannelTest : public MockFlagsChannelOptsTest { - public: - MockEDNSChannelTest() : MockFlagsChannelOptsTest(ARES_FLAG_EDNS) {} -}; - -TEST_P(MockEDNSChannelTest, RetryWithoutEDNS) { - DNSPacket rspfail; - rspfail.set_response().set_aa().set_rcode(ns_r_servfail) - .add_question(new DNSQuestion("www.google.com", ns_t_a)); - DNSPacket rspok; - rspok.set_response() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 100, {1, 2, 3, 4})); - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReply(&server_, &rspfail)) - .WillOnce(SetReply(&server_, &rspok)); - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -TEST_P(MockChannelTest, SearchDomains) { - DNSPacket nofirst; - nofirst.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket yesthird; - yesthird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)) - .add_answer(new DNSARR("www.third.gov", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesthird)); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.third.gov' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -// Relies on retries so is UDP-only -TEST_P(MockUDPChannelTest, SearchDomainsWithResentReply) { - DNSPacket nofirst; - nofirst.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - EXPECT_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillOnce(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - EXPECT_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillOnce(SetReply(&server_, &nosecond)); - DNSPacket yesthird; - yesthird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)) - .add_answer(new DNSARR("www.third.gov", 0x0200, {2, 3, 4, 5})); - // Before sending the real answer, resend an earlier reply - EXPECT_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillOnce(DoAll(SetReply(&server_, &nofirst), - SetReplyQID(&server_, 123))) - .WillOnce(DoAll(SetReply(&server_, &yesthird), - SetReplyQID(&server_, -1))); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.third.gov' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, SearchDomainsBare) { - DNSPacket nofirst; - nofirst.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket nothird; - nothird.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.third.gov", ns_t_a)); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, ¬hird)); - DNSPacket yesbare; - yesbare.set_response().set_aa() - .add_question(new DNSQuestion("www", ns_t_a)) - .add_answer(new DNSARR("www", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesbare)); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, SearchNoDataThenSuccess) { - // First two search domains recognize the name but have no A records. - DNSPacket nofirst; - nofirst.set_response().set_aa() - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa() - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket yesthird; - yesthird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)) - .add_answer(new DNSARR("www.third.gov", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesthird)); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.third.gov' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, SearchNoDataThenNoDataBare) { - // First two search domains recognize the name but have no A records. - DNSPacket nofirst; - nofirst.set_response().set_aa() - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa() - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket nothird; - nothird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, ¬hird)); - DNSPacket nobare; - nobare.set_response().set_aa() - .add_question(new DNSQuestion("www", ns_t_a)); - ON_CALL(server_, OnRequest("www", ns_t_a)) - .WillByDefault(SetReply(&server_, &nobare)); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENODATA, result.status_); -} - -TEST_P(MockChannelTest, SearchNoDataThenFail) { - // First two search domains recognize the name but have no A records. - DNSPacket nofirst; - nofirst.set_response().set_aa() - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa() - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket nothird; - nothird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, ¬hird)); - DNSPacket nobare; - nobare.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www", ns_t_a)); - ON_CALL(server_, OnRequest("www", ns_t_a)) - .WillByDefault(SetReply(&server_, &nobare)); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENODATA, result.status_); -} - -TEST_P(MockChannelTest, SearchAllocFailure) { - SearchResult result; - SetAllocFail(1); - ares_search(channel_, "fully.qualified.", ns_c_in, ns_t_a, SearchCallback, &result); - /* Already done */ - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ENOMEM, result.status_); -} - -TEST_P(MockChannelTest, SearchHighNdots) { - DNSPacket nobare; - nobare.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("a.b.c.w.w.w", ns_t_a)); - ON_CALL(server_, OnRequest("a.b.c.w.w.w", ns_t_a)) - .WillByDefault(SetReply(&server_, &nobare)); - DNSPacket yesfirst; - yesfirst.set_response().set_aa() - .add_question(new DNSQuestion("a.b.c.w.w.w.first.com", ns_t_a)) - .add_answer(new DNSARR("a.b.c.w.w.w.first.com", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("a.b.c.w.w.w.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesfirst)); - - SearchResult result; - ares_search(channel_, "a.b.c.w.w.w", ns_c_in, ns_t_a, SearchCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_SUCCESS, result.status_); - std::stringstream ss; - ss << PacketToString(result.data_); - EXPECT_EQ("RSP QRY AA NOERROR Q:{'a.b.c.w.w.w.first.com' IN A} " - "A:{'a.b.c.w.w.w.first.com' IN A TTL=512 2.3.4.5}", - ss.str()); -} - -TEST_P(MockChannelTest, UnspecifiedFamilyV6) { - DNSPacket rsp6; - rsp6.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSAaaaRR("example.com", 100, - {0x21, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03})); - ON_CALL(server_, OnRequest("example.com", ns_t_aaaa)) - .WillByDefault(SetReply(&server_, &rsp6)); - - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - // Default to IPv6 when both are available. - EXPECT_EQ("{'example.com' aliases=[] addrs=[2121:0000:0000:0000:0000:0000:0000:0303]}", ss.str()); -} - -TEST_P(MockChannelTest, UnspecifiedFamilyV4) { - DNSPacket rsp6; - rsp6.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)); - ON_CALL(server_, OnRequest("example.com", ns_t_aaaa)) - .WillByDefault(SetReply(&server_, &rsp6)); - DNSPacket rsp4; - rsp4.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSARR("example.com", 100, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("example.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp4)); - - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, UnspecifiedFamilyNoData) { - DNSPacket rsp6; - rsp6.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSCnameRR("example.com", 100, "elsewhere.com")); - ON_CALL(server_, OnRequest("example.com", ns_t_aaaa)) - .WillByDefault(SetReply(&server_, &rsp6)); - DNSPacket rsp4; - rsp4.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)); - ON_CALL(server_, OnRequest("example.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp4)); - - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'' aliases=[] addrs=[]}", ss.str()); -} - -TEST_P(MockChannelTest, UnspecifiedFamilyCname6A4) { - DNSPacket rsp6; - rsp6.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSCnameRR("example.com", 100, "elsewhere.com")); - ON_CALL(server_, OnRequest("example.com", ns_t_aaaa)) - .WillByDefault(SetReply(&server_, &rsp6)); - DNSPacket rsp4; - rsp4.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSARR("example.com", 100, {1, 2, 3, 4})); - ON_CALL(server_, OnRequest("example.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp4)); - - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_UNSPEC, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -TEST_P(MockChannelTest, ExplicitIP) { - HostResult result; - ares_gethostbyname(channel_, "1.2.3.4", AF_INET, HostCallback, &result); - EXPECT_TRUE(result.done_); // Immediate return - EXPECT_EQ(ARES_SUCCESS, result.status_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'1.2.3.4' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -TEST_P(MockChannelTest, ExplicitIPAllocFail) { - HostResult result; - SetAllocSizeFail(strlen("1.2.3.4") + 1); - ares_gethostbyname(channel_, "1.2.3.4", AF_INET, HostCallback, &result); - EXPECT_TRUE(result.done_); // Immediate return - EXPECT_EQ(ARES_ENOMEM, result.status_); -} - -TEST_P(MockChannelTest, SortListV4) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSARR("example.com", 100, {22, 23, 24, 25})) - .add_answer(new DNSARR("example.com", 100, {12, 13, 14, 15})) - .add_answer(new DNSARR("example.com", 100, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("example.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &rsp)); - - { - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "12.13.0.0/255.255.0.0 1234::5678")); - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[12.13.14.15, 22.23.24.25, 2.3.4.5]}", ss.str()); - } - { - EXPECT_EQ(ARES_SUCCESS, ares_set_sortlist(channel_, "2.3.0.0/16 130.140.150.160/26")); - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[2.3.4.5, 22.23.24.25, 12.13.14.15]}", ss.str()); - } - struct ares_options options; - memset(&options, 0, sizeof(options)); - int optmask = 0; - EXPECT_EQ(ARES_SUCCESS, ares_save_options(channel_, &options, &optmask)); - EXPECT_TRUE((optmask & ARES_OPT_SORTLIST) == ARES_OPT_SORTLIST); - ares_destroy_options(&options); -} - -TEST_P(MockChannelTest, SortListV6) { - DNSPacket rsp; - rsp.set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSAaaaRR("example.com", 100, - {0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02})) - .add_answer(new DNSAaaaRR("example.com", 100, - {0x21, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x03})); - ON_CALL(server_, OnRequest("example.com", ns_t_aaaa)) - .WillByDefault(SetReply(&server_, &rsp)); - - { - ares_set_sortlist(channel_, "1111::/16 2.3.0.0/255.255.0.0"); - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[1111:0000:0000:0000:0000:0000:0000:0202, " - "2121:0000:0000:0000:0000:0000:0000:0303]}", ss.str()); - } - { - ares_set_sortlist(channel_, "2121::/8"); - HostResult result; - ares_gethostbyname(channel_, "example.com.", AF_INET6, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'example.com' aliases=[] addrs=[2121:0000:0000:0000:0000:0000:0000:0303, " - "1111:0000:0000:0000:0000:0000:0000:0202]}", ss.str()); - } -} - -// Relies on retries so is UDP-only -TEST_P(MockUDPChannelTest, SearchDomainsAllocFail) { - DNSPacket nofirst; - nofirst.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.first.com", ns_t_a)); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &nofirst)); - DNSPacket nosecond; - nosecond.set_response().set_aa().set_rcode(ns_r_nxdomain) - .add_question(new DNSQuestion("www.second.org", ns_t_a)); - ON_CALL(server_, OnRequest("www.second.org", ns_t_a)) - .WillByDefault(SetReply(&server_, &nosecond)); - DNSPacket yesthird; - yesthird.set_response().set_aa() - .add_question(new DNSQuestion("www.third.gov", ns_t_a)) - .add_answer(new DNSARR("www.third.gov", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.third.gov", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesthird)); - - // Fail a variety of different memory allocations, and confirm - // that the operation either fails with ENOMEM or succeeds - // with the expected result. - const int kCount = 34; - HostResult results[kCount]; - for (int ii = 1; ii <= kCount; ii++) { - HostResult* result = &(results[ii - 1]); - ClearFails(); - SetAllocFail(ii); - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, result); - Process(); - EXPECT_TRUE(result->done_); - if (result->status_ == ARES_SUCCESS) { - std::stringstream ss; - ss << result->host_; - EXPECT_EQ("{'www.third.gov' aliases=[] addrs=[2.3.4.5]}", ss.str()) << " failed alloc #" << ii; - if (verbose) std::cerr << "Succeeded despite failure of alloc #" << ii << std::endl; - } - } - - // Explicitly destroy the channel now, so that the HostResult objects - // are still valid (in case any pending work refers to them). - ares_destroy(channel_); - channel_ = nullptr; -} - -// Relies on retries so is UDP-only -TEST_P(MockUDPChannelTest, Resend) { - std::vector<byte> nothing; - DNSPacket reply; - reply.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 0x0100, {0x01, 0x02, 0x03, 0x04})); - - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReplyData(&server_, nothing)) - .WillOnce(SetReplyData(&server_, nothing)) - .WillOnce(SetReply(&server_, &reply)); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(2, result.timeouts_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -TEST_P(MockChannelTest, CancelImmediate) { - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - ares_cancel(channel_); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ECANCELLED, result.status_); - EXPECT_EQ(0, result.timeouts_); -} - -// Relies on retries so is UDP-only -TEST_P(MockUDPChannelTest, CancelLater) { - std::vector<byte> nothing; - - // On second request, cancel the channel. - EXPECT_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillOnce(SetReplyData(&server_, nothing)) - .WillOnce(CancelChannel(&server_, channel_)); - - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_ECANCELLED, result.status_); - EXPECT_EQ(0, result.timeouts_); -} - -TEST_P(MockChannelTest, GetHostByNameDestroyAbsolute) { - HostResult result; - ares_gethostbyname(channel_, "www.google.com.", AF_INET, HostCallback, &result); - - ares_destroy(channel_); - channel_ = nullptr; - - EXPECT_TRUE(result.done_); // Synchronous - EXPECT_EQ(ARES_EDESTRUCTION, result.status_); - EXPECT_EQ(0, result.timeouts_); -} - -TEST_P(MockChannelTest, GetHostByNameDestroyRelative) { - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - - ares_destroy(channel_); - channel_ = nullptr; - - EXPECT_TRUE(result.done_); // Synchronous - EXPECT_EQ(ARES_EDESTRUCTION, result.status_); - EXPECT_EQ(0, result.timeouts_); -} - -TEST_P(MockChannelTest, GetHostByAddrDestroy) { - unsigned char gdns_addr4[4] = {0x08, 0x08, 0x08, 0x08}; - HostResult result; - ares_gethostbyaddr(channel_, gdns_addr4, sizeof(gdns_addr4), AF_INET, HostCallback, &result); - - ares_destroy(channel_); - channel_ = nullptr; - - EXPECT_TRUE(result.done_); // Synchronous - EXPECT_EQ(ARES_EDESTRUCTION, result.status_); - EXPECT_EQ(0, result.timeouts_); -} - -#ifndef WIN32 -TEST_P(MockChannelTest, HostAlias) { - DNSPacket reply; - reply.set_response().set_aa() - .add_question(new DNSQuestion("www.google.com", ns_t_a)) - .add_answer(new DNSARR("www.google.com", 0x0100, {0x01, 0x02, 0x03, 0x04})); - ON_CALL(server_, OnRequest("www.google.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &reply)); - - TempFile aliases("\n\n# www commentedout\nwww www.google.com\n"); - EnvValue with_env("HOSTALIASES", aliases.filename()); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.google.com' aliases=[] addrs=[1.2.3.4]}", ss.str()); -} - -TEST_P(MockChannelTest, HostAliasMissing) { - DNSPacket yesfirst; - yesfirst.set_response().set_aa() - .add_question(new DNSQuestion("www.first.com", ns_t_a)) - .add_answer(new DNSARR("www.first.com", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesfirst)); - - TempFile aliases("\n\n# www commentedout\nww www.google.com\n"); - EnvValue with_env("HOSTALIASES", aliases.filename()); - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.first.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, HostAliasMissingFile) { - DNSPacket yesfirst; - yesfirst.set_response().set_aa() - .add_question(new DNSQuestion("www.first.com", ns_t_a)) - .add_answer(new DNSARR("www.first.com", 0x0200, {2, 3, 4, 5})); - ON_CALL(server_, OnRequest("www.first.com", ns_t_a)) - .WillByDefault(SetReply(&server_, &yesfirst)); - - EnvValue with_env("HOSTALIASES", "bogus.mcfile"); - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.first.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); -} - -TEST_P(MockChannelTest, HostAliasUnreadable) { - TempFile aliases("www www.google.com\n"); - chmod(aliases.filename(), 0); - EnvValue with_env("HOSTALIASES", aliases.filename()); - - HostResult result; - ares_gethostbyname(channel_, "www", AF_INET, HostCallback, &result); - EXPECT_TRUE(result.done_); - EXPECT_EQ(ARES_EFILE, result.status_); - chmod(aliases.filename(), 0777); -} -#endif - -class MockMultiServerChannelTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface< std::pair<int, bool> > { - public: - MockMultiServerChannelTest(bool rotate) - : MockChannelOptsTest(3, GetParam().first, GetParam().second, nullptr, rotate ? ARES_OPT_ROTATE : 0) {} - void CheckExample() { - HostResult result; - ares_gethostbyname(channel_, "www.example.com.", AF_INET, HostCallback, &result); - Process(); - EXPECT_TRUE(result.done_); - std::stringstream ss; - ss << result.host_; - EXPECT_EQ("{'www.example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); - } -}; - -class RotateMultiMockTest : public MockMultiServerChannelTest { - public: - RotateMultiMockTest() : MockMultiServerChannelTest(true) {} -}; - -class NoRotateMultiMockTest : public MockMultiServerChannelTest { - public: - NoRotateMultiMockTest() : MockMultiServerChannelTest(false) {} -}; - - -TEST_P(RotateMultiMockTest, ThirdServer) { - DNSPacket servfailrsp; - servfailrsp.set_response().set_aa().set_rcode(ns_r_servfail) - .add_question(new DNSQuestion("www.example.com", ns_t_a)); - DNSPacket notimplrsp; - notimplrsp.set_response().set_aa().set_rcode(ns_r_notimpl) - .add_question(new DNSQuestion("www.example.com", ns_t_a)); - DNSPacket okrsp; - okrsp.set_response().set_aa() - .add_question(new DNSQuestion("www.example.com", ns_t_a)) - .add_answer(new DNSARR("www.example.com", 100, {2,3,4,5})); - - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), &servfailrsp)); - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), ¬implrsp)); - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), &okrsp)); - CheckExample(); - - // Second time around, starts from server [1]. - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), &servfailrsp)); - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), ¬implrsp)); - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), &okrsp)); - CheckExample(); - - // Third time around, starts from server [2]. - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), &servfailrsp)); - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), ¬implrsp)); - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), &okrsp)); - CheckExample(); -} - -TEST_P(NoRotateMultiMockTest, ThirdServer) { - DNSPacket servfailrsp; - servfailrsp.set_response().set_aa().set_rcode(ns_r_servfail) - .add_question(new DNSQuestion("www.example.com", ns_t_a)); - DNSPacket notimplrsp; - notimplrsp.set_response().set_aa().set_rcode(ns_r_notimpl) - .add_question(new DNSQuestion("www.example.com", ns_t_a)); - DNSPacket okrsp; - okrsp.set_response().set_aa() - .add_question(new DNSQuestion("www.example.com", ns_t_a)) - .add_answer(new DNSARR("www.example.com", 100, {2,3,4,5})); - - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), &servfailrsp)); - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), ¬implrsp)); - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), &okrsp)); - CheckExample(); - - // Second time around, still starts from server [0]. - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), &servfailrsp)); - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), ¬implrsp)); - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), &okrsp)); - CheckExample(); - - // Third time around, still starts from server [0]. - EXPECT_CALL(*servers_[0], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[0].get(), &servfailrsp)); - EXPECT_CALL(*servers_[1], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[1].get(), ¬implrsp)); - EXPECT_CALL(*servers_[2], OnRequest("www.example.com", ns_t_a)) - .WillOnce(SetReply(servers_[2].get(), &okrsp)); - CheckExample(); -} - - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockChannelTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockUDPChannelTest, - ::testing::Values(AF_INET, AF_INET6)); - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockTCPChannelTest, - ::testing::Values(AF_INET, AF_INET6)); - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockExtraOptsTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockNoCheckRespChannelTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -INSTANTIATE_TEST_CASE_P(AddressFamilies, MockEDNSChannelTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -INSTANTIATE_TEST_CASE_P(TransportModes, RotateMultiMockTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -INSTANTIATE_TEST_CASE_P(TransportModes, NoRotateMultiMockTest, - ::testing::Values(std::make_pair<int, bool>(AF_INET, false), - std::make_pair<int, bool>(AF_INET, true), - std::make_pair<int, bool>(AF_INET6, false), - std::make_pair<int, bool>(AF_INET6, true))); - -} // namespace test -} // namespace ares diff --git a/test/ares-test-ns.cc b/test/ares-test-ns.cc deleted file mode 100644 index c3c4552..0000000 --- a/test/ares-test-ns.cc +++ /dev/null @@ -1,199 +0,0 @@ -#include "ares-test.h" - -#ifdef HAVE_CONTAINER - -#include <sys/mount.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#include <iostream> -#include <functional> -#include <string> -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -namespace { - -struct ContainerInfo { - ContainerFilesystem* fs_; - std::string hostname_; - std::string domainname_; - VoidToIntFn fn_; -}; - -int EnterContainer(void *data) { - ContainerInfo *container = (ContainerInfo*)data; - - if (verbose) { - std::cerr << "Running function in container {chroot='" - << container->fs_->root() << "', hostname='" << container->hostname_ - << "', domainname='" << container->domainname_ << "'}" - << std::endl; - } - - // Ensure we are apparently root before continuing. - int count = 10; - while (getuid() != 0 && count > 0) { - usleep(100000); - count--; - } - if (getuid() != 0) { - std::cerr << "Child in user namespace has uid " << getuid() << std::endl; - return -1; - } - if (!container->fs_->mountpt().empty()) { - // We want to bind mount this inside the specified directory. - std::string innerdir = container->fs_->root() + container->fs_->mountpt(); - if (verbose) std::cerr << " mount --bind " << container->fs_->mountpt() - << " " << innerdir << std::endl; - int rc = mount(container->fs_->mountpt().c_str(), innerdir.c_str(), - "none", MS_BIND, 0); - if (rc != 0) { - std::cerr << "Warning: failed to bind mount " << container->fs_->mountpt() << " at " - << innerdir << ", errno=" << errno << std::endl; - } - } - - // Move into the specified directory. - if (chdir(container->fs_->root().c_str()) != 0) { - std::cerr << "Failed to chdir('" << container->fs_->root() - << "'), errno=" << errno << std::endl; - return -1; - } - // And make it the new root directory; - char buffer[PATH_MAX + 1]; - if (getcwd(buffer, PATH_MAX) == NULL) { - std::cerr << "failed to retrieve cwd, errno=" << errno << std::endl; - return -1; - } - buffer[PATH_MAX] = '\0'; - if (chroot(buffer) != 0) { - std::cerr << "chroot('" << buffer << "') failed, errno=" << errno << std::endl; - return -1; - } - - // Set host/domainnames if specified - if (!container->hostname_.empty()) { - if (sethostname(container->hostname_.c_str(), - container->hostname_.size()) != 0) { - std::cerr << "Failed to sethostname('" << container->hostname_ - << "'), errno=" << errno << std::endl; - return -1; - } - } - if (!container->domainname_.empty()) { - if (setdomainname(container->domainname_.c_str(), - container->domainname_.size()) != 0) { - std::cerr << "Failed to setdomainname('" << container->domainname_ - << "'), errno=" << errno << std::endl; - return -1; - } - } - - return container->fn_(); -} - -} // namespace - -// Run a function while: -// - chroot()ed into a particular directory -// - having a specified hostname/domainname - -int RunInContainer(ContainerFilesystem* fs, const std::string& hostname, - const std::string& domainname, VoidToIntFn fn) { - const int stack_size = 1024 * 1024; - std::vector<byte> stack(stack_size, 0); - ContainerInfo container = {fs, hostname, domainname, fn}; - - // Start a child process in a new user and UTS namespace - pid_t child = clone(EnterContainer, stack.data() + stack_size, - CLONE_VM|CLONE_NEWNS|CLONE_NEWUSER|CLONE_NEWUTS|SIGCHLD, - (void *)&container); - if (child < 0) { - std::cerr << "Failed to clone(), errno=" << errno << std::endl; - return -1; - } - - // Build the UID map that makes us look like root inside the namespace. - std::stringstream mapfiless; - mapfiless << "/proc/" << child << "/uid_map"; - std::string mapfile = mapfiless.str(); - int fd = open(mapfile.c_str(), O_CREAT|O_WRONLY|O_TRUNC, 0644); - if (fd < 0) { - std::cerr << "Failed to create '" << mapfile << "'" << std::endl; - return -1; - } - std::stringstream contentss; - contentss << "0 " << getuid() << " 1" << std::endl; - std::string content = contentss.str(); - int rc = write(fd, content.c_str(), content.size()); - if (rc != (int)content.size()) { - std::cerr << "Failed to write uid map to '" << mapfile << "'" << std::endl; - } - close(fd); - - // Wait for the child process and retrieve its status. - int status; - waitpid(child, &status, 0); - if (rc <= 0) { - std::cerr << "Failed to waitpid(" << child << ")" << std::endl; - return -1; - } - if (!WIFEXITED(status)) { - std::cerr << "Child " << child << " did not exit normally" << std::endl; - return -1; - } - return status; -} - -ContainerFilesystem::ContainerFilesystem(NameContentList files, const std::string& mountpt) { - rootdir_ = TempNam(nullptr, "ares-chroot"); - mkdir(rootdir_.c_str(), 0755); - dirs_.push_front(rootdir_); - for (const auto& nc : files) { - std::string fullpath = rootdir_ + nc.first; - int idx = fullpath.rfind('/'); - std::string dir = fullpath.substr(0, idx); - EnsureDirExists(dir); - files_.push_back(std::unique_ptr<TransientFile>( - new TransientFile(fullpath, nc.second))); - } - if (!mountpt.empty()) { - char buffer[PATH_MAX + 1]; - if (realpath(mountpt.c_str(), buffer)) { - mountpt_ = buffer; - std::string fullpath = rootdir_ + mountpt_; - EnsureDirExists(fullpath); - } - } -} - -ContainerFilesystem::~ContainerFilesystem() { - files_.clear(); - for (const std::string& dir : dirs_) { - rmdir(dir.c_str()); - } -} - -void ContainerFilesystem::EnsureDirExists(const std::string& dir) { - if (std::find(dirs_.begin(), dirs_.end(), dir) != dirs_.end()) { - return; - } - size_t idx = dir.rfind('/'); - if (idx != std::string::npos) { - std::string prevdir = dir.substr(0, idx); - EnsureDirExists(prevdir); - } - // Ensure this directory is in the list before its ancestors. - mkdir(dir.c_str(), 0755); - dirs_.push_front(dir); -} - -} // namespace test -} // namespace ares - -#endif diff --git a/test/ares-test-parse-a.cc b/test/ares-test-parse-a.cc deleted file mode 100644 index 77d9591..0000000 --- a/test/ares-test-parse-a.cc +++ /dev/null @@ -1,362 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseAReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSARR("example.com", 0x01020304, {2,3,4,5})); - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - EXPECT_EQ(data, pkt.data()); - struct hostent *host = nullptr; - struct ares_addrttl info[5]; - int count = 5; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ(0x01020304, info[0].ttl); - unsigned long expected_addr = htonl(0x02030405); - EXPECT_EQ(expected_addr, info[0].ipaddr.s_addr); - EXPECT_EQ("2.3.4.5", AddressToString(&(info[0].ipaddr), 4)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); - - // Repeat without providing a hostent - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - nullptr, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ(0x01020304, info[0].ttl); - EXPECT_EQ(expected_addr, info[0].ipaddr.s_addr); - EXPECT_EQ("2.3.4.5", AddressToString(&(info[0].ipaddr), 4)); -} - -TEST_F(LibraryTest, ParseMalformedAReply) { - std::vector<byte> data = { - 0x12, 0x34, // [0:2) qid - 0x84, // [2] response + query + AA + not-TC + not-RD - 0x00, // [3] not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // [4:6) num questions - 0x00, 0x01, // [6:8) num answer RRs - 0x00, 0x00, // [8:10) num authority RRs - 0x00, 0x00, // [10:12) num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', // [12:20) - 0x03, 'c', 'o', 'm', // [20,24) - 0x00, // [24] - 0x00, 0x01, // [25:26) type A - 0x00, 0x01, // [27:29) class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', // [29:37) - 0x03, 'c', 'o', 'm', // [37:41) - 0x00, // [41] - 0x00, 0x01, // [42:44) RR type - 0x00, 0x01, // [44:46) class IN - 0x01, 0x02, 0x03, 0x04, // [46:50) TTL - 0x00, 0x04, // [50:52) rdata length - 0x02, 0x03, 0x04, 0x05, // [52,56) - }; - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - - // Invalid RR-len. - std::vector<byte> invalid_rrlen(data); - invalid_rrlen[51] = 180; - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(invalid_rrlen.data(), invalid_rrlen.size(), - &host, info, &count)); - - // Truncate mid-question. - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), 26, - &host, info, &count)); - - // Truncate mid-answer. - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), 42, - &host, info, &count)); -} - -TEST_F(LibraryTest, ParseAReplyNoData) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(0, count); - EXPECT_EQ(nullptr, host); - - // Again but with a CNAME. - pkt.add_answer(new DNSCnameRR("example.com", 200, "c.example.com")); - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(0, count); - EXPECT_EQ(nullptr, host); -} - -TEST_F(LibraryTest, ParseAReplyVariantA) { - DNSPacket pkt; - pkt.set_qid(6366).set_rd().set_ra() - .add_question(new DNSQuestion("mit.edu", ns_t_a)) - .add_answer(new DNSARR("mit.edu", 52, {18,7,22,69})) - .add_auth(new DNSNsRR("mit.edu", 292, "W20NS.mit.edu")) - .add_auth(new DNSNsRR("mit.edu", 292, "BITSY.mit.edu")) - .add_auth(new DNSNsRR("mit.edu", 292, "STRAWB.mit.edu")) - .add_additional(new DNSARR("STRAWB.mit.edu", 292, {18,71,0,151})); - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - std::vector<byte> data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ("18.7.22.69", AddressToString(&(info[0].ipaddr), 4)); - EXPECT_EQ(52, info[0].ttl); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseAReplyJustCname) { - DNSPacket pkt; - pkt.set_qid(6366).set_rd().set_ra() - .add_question(new DNSQuestion("mit.edu", ns_t_a)) - .add_answer(new DNSCnameRR("mit.edu", 52, "other.mit.edu")); - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - std::vector<byte> data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(0, count); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'other.mit.edu' aliases=[mit.edu] addrs=[]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseAReplyVariantCname) { - DNSPacket pkt; - pkt.set_qid(6366).set_rd().set_ra() - .add_question(new DNSQuestion("query.example.com", ns_t_a)) - .add_answer(new DNSCnameRR("query.example.com", 200, "redirect.query.example.com")) - .add_answer(new DNSARR("redirect.query.example.com", 300, {129,97,123,22})) - .add_auth(new DNSNsRR("example.com", 218, "aa.ns1.example.com")) - .add_auth(new DNSNsRR("example.com", 218, "ns2.example.com")) - .add_auth(new DNSNsRR("example.com", 218, "ns3.example.com")) - .add_auth(new DNSNsRR("example.com", 218, "ns4.example.com")) - .add_additional(new DNSARR("aa.ns1.example.com", 218, {129,97,1,1})) - .add_additional(new DNSARR("ns2.example.com", 218, {129,97,1,2})) - .add_additional(new DNSARR("ns3.example.com", 218, {129,97,1,3})) - .add_additional(new DNSARR("ns4.example.com", 218, {129,97,1,4})); - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - std::vector<byte> data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ("129.97.123.22", AddressToString(&(info[0].ipaddr), 4)); - // TTL is reduced to match CNAME's. - EXPECT_EQ(200, info[0].ttl); - ares_free_hostent(host); - - // Repeat parsing without places to put the results. - count = 0; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - nullptr, info, &count)); -} - -TEST_F(LibraryTest, ParseAReplyVariantCnameChain) { - DNSPacket pkt; - pkt.set_qid(6366).set_rd().set_ra() - .add_question(new DNSQuestion("c1.localhost", ns_t_a)) - .add_answer(new DNSCnameRR("c1.localhost", 604800, "c2.localhost")) - .add_answer(new DNSCnameRR("c2.localhost", 604800, "c3.localhost")) - .add_answer(new DNSCnameRR("c3.localhost", 604800, "c4.localhost")) - .add_answer(new DNSARR("c4.localhost", 604800, {8,8,8,8})) - .add_auth(new DNSNsRR("localhost", 604800, "localhost")) - .add_additional(new DNSARR("localhost", 604800, {127,0,0,1})) - .add_additional(new DNSAaaaRR("localhost", 604800, - {0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01})); - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - std::vector<byte> data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ("8.8.8.8", AddressToString(&(info[0].ipaddr), 4)); - EXPECT_EQ(604800, info[0].ttl); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, DISABLED_ParseAReplyVariantCnameLast) { - DNSPacket pkt; - pkt.set_qid(6366).set_rd().set_ra() - .add_question(new DNSQuestion("query.example.com", ns_t_a)) - .add_answer(new DNSARR("redirect.query.example.com", 300, {129,97,123,221})) - .add_answer(new DNSARR("redirect.query.example.com", 300, {129,97,123,222})) - .add_answer(new DNSARR("redirect.query.example.com", 300, {129,97,123,223})) - .add_answer(new DNSARR("redirect.query.example.com", 300, {129,97,123,224})) - .add_answer(new DNSCnameRR("query.example.com", 60, "redirect.query.example.com")) - .add_additional(new DNSTxtRR("query.example.com", 60, {"text record"})); - struct hostent *host = nullptr; - struct ares_addrttl info[8]; - int count = 8; - std::vector<byte> data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(4, count); - EXPECT_EQ("129.97.123.221", AddressToString(&(info[0].ipaddr), 4)); - EXPECT_EQ("129.97.123.222", AddressToString(&(info[1].ipaddr), 4)); - EXPECT_EQ("129.97.123.223", AddressToString(&(info[2].ipaddr), 4)); - EXPECT_EQ("129.97.123.224", AddressToString(&(info[3].ipaddr), 4)); - EXPECT_EQ(300, info[0].ttl); - EXPECT_EQ(300, info[1].ttl); - EXPECT_EQ(300, info[2].ttl); - EXPECT_EQ(300, info[3].ttl); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseAReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSARR("example.com", 100, {0x02, 0x03, 0x04, 0x05})); - std::vector<byte> data; - - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.add_question(new DNSQuestion("example.com", ns_t_a)); - - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_a)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_a)); - -#ifdef DISABLED - // Not a response. - pkt.set_response(false); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.set_response(true); - - // Bad return code. - pkt.set_rcode(ns_r_formerr); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.set_rcode(ns_r_noerror); -#endif - - // Two questions - pkt.add_question(new DNSQuestion("example.com", ns_t_a)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_a)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.answers_.clear(); - pkt.add_answer(new DNSARR("example.com", 100, {0x02, 0x03, 0x04, 0x05})); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.add_answer(new DNSARR("example.com", 100, {0x02, 0x03, 0x04, 0x05})); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), len, - &host, info, &count)); - EXPECT_EQ(nullptr, host); - EXPECT_EQ(ARES_EBADRESP, ares_parse_a_reply(data.data(), len, - nullptr, info, &count)); - } -} - -TEST_F(LibraryTest, ParseAReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_a)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSARR("c.example.com", 500, {0x02, 0x03, 0x04, 0x05})); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - - for (int ii = 1; ii <= 8; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)) << ii; - EXPECT_EQ(nullptr, host); - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-aaaa.cc b/test/ares-test-parse-aaaa.cc deleted file mode 100644 index 9d0457e..0000000 --- a/test/ares-test-parse-aaaa.cc +++ /dev/null @@ -1,191 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseAaaaReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSAaaaRR("example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - struct ares_addr6ttl info[5]; - int count = 5; - EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ(100, info[0].ttl); - EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); - EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'example.com' aliases=[] addrs=[0101:0101:0202:0202:0303:0303:0404:0404]}", ss.str()); - ares_free_hostent(host); - - // Repeat without providing places to put the results - count = 0; - EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), - nullptr, info, &count)); -} - -TEST_F(LibraryTest, ParseAaaaReplyCname) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSCnameRR("example.com", 50, "c.example.com")) - .add_answer(new DNSAaaaRR("c.example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - struct ares_addr6ttl info[5]; - int count = 5; - EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - // CNAME TTL overrides AAAA TTL. - EXPECT_EQ(50, info[0].ttl); - EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); - EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'c.example.com' aliases=[example.com] addrs=[0101:0101:0202:0202:0303:0303:0404:0404]}", ss.str()); - ares_free_hostent(host); - - // Repeat without providing a hostent - count = 5; - EXPECT_EQ(ARES_SUCCESS, ares_parse_aaaa_reply(data.data(), data.size(), - nullptr, info, &count)); - EXPECT_EQ(1, count); - EXPECT_EQ(50, info[0].ttl); - EXPECT_EQ(0x01, info[0].ip6addr._S6_un._S6_u8[0]); - EXPECT_EQ(0x02, info[0].ip6addr._S6_un._S6_u8[4]); -} - -TEST_F(LibraryTest, ParseAaaaReplyNoData) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - struct ares_addr6ttl info[2]; - int count = 2; - EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(0, count); - EXPECT_EQ(nullptr, host); - - // Again but with a CNAME. - pkt.add_answer(new DNSCnameRR("example.com", 200, "c.example.com")); - EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(0, count); - EXPECT_EQ(nullptr, host); -} - -TEST_F(LibraryTest, ParseAaaaReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSAaaaRR("example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - std::vector<byte> data; - - struct hostent *host = nullptr; - struct ares_addr6ttl info[2]; - int count = 2; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); - - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_aaaa)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); - - // Two questions. - pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_aaaa)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.answers_.clear(); - pkt.add_answer(new DNSAaaaRR("example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(nullptr, host); - pkt.add_answer(new DNSAaaaRR("example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), len, - &host, info, &count)); - EXPECT_EQ(nullptr, host); - EXPECT_EQ(ARES_EBADRESP, ares_parse_aaaa_reply(data.data(), len, - nullptr, info, &count)); - } -} - -TEST_F(LibraryTest, ParseAaaaReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_aaaa)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSAaaaRR("c.example.com", 100, - {0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, - 0x03, 0x03, 0x03, 0x03, 0x04, 0x04, 0x04, 0x04})); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - struct ares_addr6ttl info[2]; - int count = 2; - - for (int ii = 1; ii <= 8; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_aaaa_reply(data.data(), data.size(), - &host, info, &count)) << ii; - EXPECT_EQ(nullptr, host); - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-mx.cc b/test/ares-test-parse-mx.cc deleted file mode 100644 index 37324a6..0000000 --- a/test/ares-test-parse-mx.cc +++ /dev/null @@ -1,141 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseMxReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")) - .add_answer(new DNSMxRR("example.com", 100, 200, "mx2.example.com")); - std::vector<byte> data = pkt.data(); - - struct ares_mx_reply* mx = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_mx_reply(data.data(), data.size(), &mx)); - ASSERT_NE(nullptr, mx); - EXPECT_EQ("mx1.example.com", std::string(mx->host)); - EXPECT_EQ(100, mx->priority); - - struct ares_mx_reply* mx2 = mx->next; - ASSERT_NE(nullptr, mx2); - EXPECT_EQ("mx2.example.com", std::string(mx2->host)); - EXPECT_EQ(200, mx2->priority); - EXPECT_EQ(nullptr, mx2->next); - - ares_free_data(mx); -} - -TEST_F(LibraryTest, ParseMxReplyMalformed) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x0F, // type MX - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x0F, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x01, // rdata length -- too short - 0x02, - }; - - struct ares_mx_reply* mx = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx)); - ASSERT_EQ(nullptr, mx); -} - - -TEST_F(LibraryTest, ParseMxReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - std::vector<byte> data; - struct ares_mx_reply* mx = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx)); - EXPECT_EQ(nullptr, mx); - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_mx)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); -#endif - - // Two questions. - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_mx_reply(data.data(), data.size(), &mx)); - EXPECT_EQ(nullptr, mx); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - - // Wrong sort of answer. - // TODO(drysdale): check if this should be ARES_ENODATA? - pkt.answers_.clear(); - pkt.add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")); - data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_mx_reply(data.data(), data.size(), &mx)); - EXPECT_EQ(nullptr, mx); - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_mx_reply(data.data(), data.size(), &mx)); - EXPECT_EQ(nullptr, mx); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - int rc = ares_parse_mx_reply(data.data(), len, &mx); - EXPECT_EQ(nullptr, mx); - EXPECT_TRUE(rc == ARES_EBADRESP || rc == ARES_EBADNAME); - } -} - -TEST_F(LibraryTest, ParseMxReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSMxRR("c.example.com", 100, 100, "mx1.example.com")); - std::vector<byte> data = pkt.data(); - struct ares_mx_reply* mx = nullptr; - - for (int ii = 1; ii <= 5; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_mx_reply(data.data(), data.size(), &mx)) << ii; - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-naptr.cc b/test/ares-test-parse-naptr.cc deleted file mode 100644 index 40013cb..0000000 --- a/test/ares-test-parse-naptr.cc +++ /dev/null @@ -1,119 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseNaptrReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_naptr)) - .add_answer(new DNSNaptrRR("example.com", 100, - 10, 20, "SP", "service", "regexp", "replace")) - .add_answer(new DNSNaptrRR("example.com", 0x0010, - 11, 21, "SP", "service2", "regexp2", "replace2")); - std::vector<byte> data = pkt.data(); - - struct ares_naptr_reply* naptr = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - ASSERT_NE(nullptr, naptr); - EXPECT_EQ("SP", std::string((char*)naptr->flags)); - EXPECT_EQ("service", std::string((char*)naptr->service)); - EXPECT_EQ("regexp", std::string((char*)naptr->regexp)); - EXPECT_EQ("replace", std::string((char*)naptr->replacement)); - EXPECT_EQ(10, naptr->order); - EXPECT_EQ(20, naptr->preference); - - struct ares_naptr_reply* naptr2 = naptr->next; - ASSERT_NE(nullptr, naptr2); - EXPECT_EQ("SP", std::string((char*)naptr2->flags)); - EXPECT_EQ("service2", std::string((char*)naptr2->service)); - EXPECT_EQ("regexp2", std::string((char*)naptr2->regexp)); - EXPECT_EQ("replace2", std::string((char*)naptr2->replacement)); - EXPECT_EQ(11, naptr2->order); - EXPECT_EQ(21, naptr2->preference); - EXPECT_EQ(nullptr, naptr2->next); - - ares_free_data(naptr); -} - -TEST_F(LibraryTest, ParseNaptrReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_naptr)) - .add_answer(new DNSNaptrRR("example.com", 100, - 10, 20, "SP", "service", "regexp", "replace")); - std::vector<byte> data; - struct ares_naptr_reply* naptr = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - pkt.add_question(new DNSQuestion("example.com", ns_t_naptr)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_naptr)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_naptr)); -#endif - - // Two questions - pkt.add_question(new DNSQuestion("example.com", ns_t_naptr)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_naptr)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - EXPECT_EQ(nullptr, naptr); - pkt.answers_.clear(); - pkt.add_answer(new DNSNaptrRR("example.com", 100, - 10, 20, "SP", "service", "regexp", "replace")); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - pkt.add_answer(new DNSNaptrRR("example.com", 100, - 10, 20, "SP", "service", "regexp", "replace")); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - int rc = ares_parse_naptr_reply(data.data(), len, &naptr); - EXPECT_TRUE(rc == ARES_EBADRESP || rc == ARES_EBADNAME); - } -} - -TEST_F(LibraryTest, ParseNaptrReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_naptr)) - .add_answer(new DNSNaptrRR("example.com", 100, - 10, 20, "SP", "service", "regexp", "replace")) - .add_answer(new DNSNaptrRR("example.com", 0x0010, - 11, 21, "SP", "service2", "regexp2", "replace2")); - std::vector<byte> data = pkt.data(); - struct ares_naptr_reply* naptr = nullptr; - - for (int ii = 1; ii <= 13; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_naptr_reply(data.data(), data.size(), &naptr)); - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-ns.cc b/test/ares-test-parse-ns.cc deleted file mode 100644 index cd65318..0000000 --- a/test/ares-test-parse-ns.cc +++ /dev/null @@ -1,119 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseNsReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_ns)) - .add_answer(new DNSNsRR("example.com", 100, "ns.example.com")); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ns_reply(data.data(), data.size(), &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'example.com' aliases=[ns.example.com] addrs=[]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseNsReplyMultiple) { - DNSPacket pkt; - pkt.set_qid(10501).set_response().set_rd().set_ra() - .add_question(new DNSQuestion("google.com", ns_t_ns)) - .add_answer(new DNSNsRR("google.com", 59, "ns1.google.com")) - .add_answer(new DNSNsRR("google.com", 59, "ns2.google.com")) - .add_answer(new DNSNsRR("google.com", 59, "ns3.google.com")) - .add_answer(new DNSNsRR("google.com", 59, "ns4.google.com")) - .add_additional(new DNSARR("ns4.google.com", 247, {216,239,38,10})) - .add_additional(new DNSARR("ns2.google.com", 247, {216,239,34,10})) - .add_additional(new DNSARR("ns1.google.com", 247, {216,239,32,10})) - .add_additional(new DNSARR("ns3.google.com", 247, {216,239,36,10})); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ns_reply(data.data(), data.size(), &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'google.com' aliases=[ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com] addrs=[]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseNsReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_ns)) - .add_answer(new DNSNsRR("example.com", 100, "ns.example.com")); - std::vector<byte> data; - struct hostent *host = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), data.size(), &host)); - pkt.add_question(new DNSQuestion("example.com", ns_t_ns)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_ns)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_ns)); -#endif - - // Two questions. - pkt.add_question(new DNSQuestion("example.com", ns_t_ns)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), data.size(), &host)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_ns)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host)); - pkt.answers_.clear(); - pkt.add_answer(new DNSNsRR("example.com", 100, "ns.example.com")); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ns_reply(data.data(), data.size(), &host)); - pkt.add_answer(new DNSNsRR("example.com", 100, "ns.example.com")); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_ns_reply(data.data(), len, &host)); - } -} - -TEST_F(LibraryTest, ParseNsReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_ns)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSNsRR("c.example.com", 100, "ns.example.com")); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - - for (int ii = 1; ii <= 8; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_ns_reply(data.data(), data.size(), &host)) << ii; - } -} - - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-ptr.cc b/test/ares-test-parse-ptr.cc deleted file mode 100644 index c769b29..0000000 --- a/test/ares-test-parse-ptr.cc +++ /dev/null @@ -1,249 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParsePtrReplyOK) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other.com")); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'other.com' aliases=[other.com] addrs=[16.32.48.64]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParsePtrReplyCname) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSCnameRR("64.48.32.16.in-addr.arpa", 50, "64.48.32.8.in-addr.arpa")) - .add_answer(new DNSPtrRR("64.48.32.8.in-addr.arpa", 100, "other.com")); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'other.com' aliases=[other.com] addrs=[16.32.48.64]}", ss.str()); - ares_free_hostent(host); -} - - -struct DNSMalformedCnameRR : public DNSCnameRR { - DNSMalformedCnameRR(const std::string& name, int ttl, const std::string& other) - : DNSCnameRR(name, ttl, other) {} - std::vector<byte> data() const { - std::vector<byte> data = DNSRR::data(); - std::vector<byte> encname = EncodeString(other_); - encname[0] = encname[0] + 63; // invalid label length - int len = encname.size(); - PushInt16(&data, len); - data.insert(data.end(), encname.begin(), encname.end()); - return data; - } -}; - -TEST_F(LibraryTest, ParsePtrReplyMalformedCname) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSMalformedCnameRR("64.48.32.16.in-addr.arpa", 50, "64.48.32.8.in-addr.arpa")) - .add_answer(new DNSPtrRR("64.48.32.8.in-addr.arpa", 100, "other.com")); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - ASSERT_EQ(nullptr, host); -} - -TEST_F(LibraryTest, ParseManyPtrReply) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "main.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other1.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other2.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other3.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other4.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other5.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other6.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other7.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other8.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other9.com")); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - ASSERT_NE(nullptr, host); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParsePtrReplyAdditional) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 55, "other.com")) - .add_auth(new DNSNsRR("16.in-addr.arpa", 234, "ns1.other.com")) - .add_auth(new DNSNsRR("16.in-addr.arpa", 234, "bb.ns2.other.com")) - .add_auth(new DNSNsRR("16.in-addr.arpa", 234, "ns3.other.com")) - .add_additional(new DNSARR("ns1.other.com", 229, {10,20,30,41})) - .add_additional(new DNSARR("bb.ns2.other.com", 229, {10,20,30,42})) - .add_additional(new DNSARR("ns3.other.com", 229, {10,20,30,43})); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'other.com' aliases=[other.com] addrs=[16.32.48.64]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParsePtrReplyErrors) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other.com")); - std::vector<byte> data; - struct hostent *host = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - pkt.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)); - - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("99.48.32.16.in-addr.arpa", ns_t_ptr)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)); - - // Two questions. - pkt.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - pkt.answers_.clear(); - pkt.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other.com")); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - pkt.add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other.com")); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), len, - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - } - - // Truncated packets with CNAME. - pkt.add_answer(new DNSCnameRR("64.48.32.16.in-addr.arpa", 50, "64.48.32.8.in-addr.arpa")); - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_ptr_reply(data.data(), len, - addrv4, sizeof(addrv4), AF_INET, &host)); - EXPECT_EQ(nullptr, host); - } -} - -TEST_F(LibraryTest, ParsePtrReplyAllocFailSome) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "main.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other1.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other2.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other3.com")); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - - for (int ii = 1; ii <= 18; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host)) << ii; - } -} - -TEST_F(LibraryTest, ParsePtrReplyAllocFailMany) { - byte addrv4[4] = {0x10, 0x20, 0x30, 0x40}; - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "main.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other1.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other2.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other3.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other4.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other5.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other6.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other7.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other8.com")) - .add_answer(new DNSPtrRR("64.48.32.16.in-addr.arpa", 100, "other9.com")); - std::vector<byte> data = pkt.data(); - struct hostent *host = nullptr; - - for (int ii = 1; ii <= 63; ii++) { - ClearFails(); - SetAllocFail(ii); - int rc = ares_parse_ptr_reply(data.data(), data.size(), - addrv4, sizeof(addrv4), AF_INET, &host); - if (rc != ARES_ENOMEM) { - EXPECT_EQ(ARES_SUCCESS, rc); - ares_free_hostent(host); - host = nullptr; - } - } -} - - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-soa.cc b/test/ares-test-parse-soa.cc deleted file mode 100644 index afa4b7a..0000000 --- a/test/ares-test-parse-soa.cc +++ /dev/null @@ -1,108 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseSoaReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_soa)) - .add_answer(new DNSSoaRR("example.com", 100, - "soa1.example.com", "fred.example.com", - 1, 2, 3, 4, 5)); - std::vector<byte> data = pkt.data(); - - struct ares_soa_reply* soa = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_soa_reply(data.data(), data.size(), &soa)); - ASSERT_NE(nullptr, soa); - EXPECT_EQ("soa1.example.com", std::string(soa->nsname)); - EXPECT_EQ("fred.example.com", std::string(soa->hostmaster)); - EXPECT_EQ(1, soa->serial); - EXPECT_EQ(2, soa->refresh); - EXPECT_EQ(3, soa->retry); - EXPECT_EQ(4, soa->expire); - EXPECT_EQ(5, soa->minttl); - ares_free_data(soa); -} - -TEST_F(LibraryTest, ParseSoaReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_soa)) - .add_answer(new DNSSoaRR("example.com", 100, - "soa1.example.com", "fred.example.com", - 1, 2, 3, 4, 5)); - std::vector<byte> data; - struct ares_soa_reply* soa = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), data.size(), &soa)); - pkt.add_question(new DNSQuestion("example.com", ns_t_soa)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_soa)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_soa_reply(data.data(), data.size(), &soa)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_soa)); -#endif - - // Two questions - pkt.add_question(new DNSQuestion("example.com", ns_t_soa)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), data.size(), &soa)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_soa)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), data.size(), &soa)); - pkt.answers_.clear(); - pkt.add_answer(new DNSSoaRR("example.com", 100, - "soa1.example.com", "fred.example.com", - 1, 2, 3, 4, 5)); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), data.size(), &soa)); - pkt.add_answer(new DNSSoaRR("example.com", 100, - "soa1.example.com", "fred.example.com", - 1, 2, 3, 4, 5)); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - EXPECT_EQ(ARES_EBADRESP, ares_parse_soa_reply(data.data(), len, &soa)); - } -} - -TEST_F(LibraryTest, ParseSoaReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_soa)) - .add_answer(new DNSSoaRR("example.com", 100, - "soa1.example.com", "fred.example.com", - 1, 2, 3, 4, 5)); - std::vector<byte> data = pkt.data(); - struct ares_soa_reply* soa = nullptr; - - for (int ii = 1; ii <= 5; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_soa_reply(data.data(), data.size(), &soa)) << ii; - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-srv.cc b/test/ares-test-parse-srv.cc deleted file mode 100644 index cc651d6..0000000 --- a/test/ares-test-parse-srv.cc +++ /dev/null @@ -1,288 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseSrvReplyOK) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_srv)) - .add_answer(new DNSSrvRR("example.com", 100, 10, 20, 30, "srv.example.com")) - .add_answer(new DNSSrvRR("example.com", 100, 11, 21, 31, "srv2.example.com")); - std::vector<byte> data = pkt.data(); - - struct ares_srv_reply* srv = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv)); - ASSERT_NE(nullptr, srv); - - EXPECT_EQ("srv.example.com", std::string(srv->host)); - EXPECT_EQ(10, srv->priority); - EXPECT_EQ(20, srv->weight); - EXPECT_EQ(30, srv->port); - - struct ares_srv_reply* srv2 = srv->next; - ASSERT_NE(nullptr, srv2); - EXPECT_EQ("srv2.example.com", std::string(srv2->host)); - EXPECT_EQ(11, srv2->priority); - EXPECT_EQ(21, srv2->weight); - EXPECT_EQ(31, srv2->port); - EXPECT_EQ(nullptr, srv2->next); - - ares_free_data(srv); -} - -TEST_F(LibraryTest, ParseSrvReplySingle) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)) - .add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else1.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else2.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else3.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else4.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else5.where.com")) - .add_additional(new DNSARR("else2.where.com", 42, {172,19,0,1})) - .add_additional(new DNSARR("else5.where.com", 42, {172,19,0,2})); - std::vector<byte> data = pkt.data(); - - struct ares_srv_reply* srv = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv)); - ASSERT_NE(nullptr, srv); - - EXPECT_EQ("example.abc.def.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(10, srv->weight); - EXPECT_EQ(8160, srv->port); - EXPECT_EQ(nullptr, srv->next); - - ares_free_data(srv); -} - -TEST_F(LibraryTest, ParseSrvReplyMalformed) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x21, // type SRV - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x21, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length -- too short - 0x02, 0x03, 0x04, 0x05, - }; - - struct ares_srv_reply* srv = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_srv_reply(data.data(), data.size(), &srv)); - ASSERT_EQ(nullptr, srv); -} - -TEST_F(LibraryTest, ParseSrvReplyMultiple) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_ra().set_rd() - .add_question(new DNSQuestion("srv.example.com", ns_t_srv)) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 6789, "a1.srv.example.com")) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 4567, "a2.srv.example.com")) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 5678, "a3.srv.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns1.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns2.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns3.example.com")) - .add_additional(new DNSARR("a1.srv.example.com", 300, {172,19,1,1})) - .add_additional(new DNSARR("a2.srv.example.com", 300, {172,19,1,2})) - .add_additional(new DNSARR("a3.srv.example.com", 300, {172,19,1,3})) - .add_additional(new DNSARR("n1.example.com", 300, {172,19,0,1})) - .add_additional(new DNSARR("n2.example.com", 300, {172,19,0,2})) - .add_additional(new DNSARR("n3.example.com", 300, {172,19,0,3})); - std::vector<byte> data = pkt.data(); - - struct ares_srv_reply* srv0 = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv0)); - ASSERT_NE(nullptr, srv0); - struct ares_srv_reply* srv = srv0; - - EXPECT_EQ("a1.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(6789, srv->port); - EXPECT_NE(nullptr, srv->next); - srv = srv->next; - - EXPECT_EQ("a2.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(4567, srv->port); - EXPECT_NE(nullptr, srv->next); - srv = srv->next; - - EXPECT_EQ("a3.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(5678, srv->port); - EXPECT_EQ(nullptr, srv->next); - - ares_free_data(srv0); -} - -TEST_F(LibraryTest, ParseSrvReplyCname) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)) - .add_answer(new DNSCnameRR("example.abc.def.com", 300, "cname.abc.def.com")) - .add_answer(new DNSSrvRR("cname.abc.def.com", 300, 0, 10, 1234, "srv.abc.def.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else1.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else2.where.com")) - .add_auth(new DNSNsRR("abc.def.com", 44, "else3.where.com")) - .add_additional(new DNSARR("example.abc.def.com", 300, {172,19,0,1})) - .add_additional(new DNSARR("else1.where.com", 42, {172,19,0,1})) - .add_additional(new DNSARR("else2.where.com", 42, {172,19,0,2})) - .add_additional(new DNSARR("else3.where.com", 42, {172,19,0,3})); - std::vector<byte> data = pkt.data(); - - struct ares_srv_reply* srv = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv)); - ASSERT_NE(nullptr, srv); - - EXPECT_EQ("srv.abc.def.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(10, srv->weight); - EXPECT_EQ(1234, srv->port); - EXPECT_EQ(nullptr, srv->next); - - ares_free_data(srv); -} - -TEST_F(LibraryTest, ParseSrvReplyCnameMultiple) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_ra().set_rd() - .add_question(new DNSQuestion("query.example.com", ns_t_srv)) - .add_answer(new DNSCnameRR("query.example.com", 300, "srv.example.com")) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 6789, "a1.srv.example.com")) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 4567, "a2.srv.example.com")) - .add_answer(new DNSSrvRR("srv.example.com", 300, 0, 5, 5678, "a3.srv.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns1.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns2.example.com")) - .add_auth(new DNSNsRR("example.com", 300, "ns3.example.com")) - .add_additional(new DNSARR("a1.srv.example.com", 300, {172,19,1,1})) - .add_additional(new DNSARR("a2.srv.example.com", 300, {172,19,1,2})) - .add_additional(new DNSARR("a3.srv.example.com", 300, {172,19,1,3})) - .add_additional(new DNSARR("n1.example.com", 300, {172,19,0,1})) - .add_additional(new DNSARR("n2.example.com", 300, {172,19,0,2})) - .add_additional(new DNSARR("n3.example.com", 300, {172,19,0,3})); - std::vector<byte> data = pkt.data(); - - struct ares_srv_reply* srv0 = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv0)); - ASSERT_NE(nullptr, srv0); - struct ares_srv_reply* srv = srv0; - - EXPECT_EQ("a1.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(6789, srv->port); - EXPECT_NE(nullptr, srv->next); - srv = srv->next; - - EXPECT_EQ("a2.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(4567, srv->port); - EXPECT_NE(nullptr, srv->next); - srv = srv->next; - - EXPECT_EQ("a3.srv.example.com", std::string(srv->host)); - EXPECT_EQ(0, srv->priority); - EXPECT_EQ(5, srv->weight); - EXPECT_EQ(5678, srv->port); - EXPECT_EQ(nullptr, srv->next); - - ares_free_data(srv0); -} - -TEST_F(LibraryTest, ParseSrvReplyErrors) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)) - .add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")); - std::vector<byte> data; - struct ares_srv_reply* srv = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_srv_reply(data.data(), data.size(), &srv)); - pkt.add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_srv)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_srv_reply(data.data(), data.size(), &srv)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_srv)); -#endif - - // Two questions. - pkt.add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)); - data = pkt.data(); - EXPECT_EQ(ARES_EBADRESP, ares_parse_srv_reply(data.data(), data.size(), &srv)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("64.48.32.16.in-addr.arpa", ns_t_ptr)); - - // Wrong sort of answer. - pkt.answers_.clear(); - pkt.add_answer(new DNSMxRR("example.com", 100, 100, "mx1.example.com")); - data = pkt.data(); - EXPECT_EQ(ARES_SUCCESS, ares_parse_srv_reply(data.data(), data.size(), &srv)); - EXPECT_EQ(nullptr, srv); - pkt.answers_.clear(); - pkt.add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_srv_reply(data.data(), data.size(), &srv)); - pkt.add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")); - - // Truncated packets. - data = pkt.data(); - for (size_t len = 1; len < data.size(); len++) { - int rc = ares_parse_srv_reply(data.data(), len, &srv); - EXPECT_TRUE(rc == ARES_EBADRESP || rc == ARES_EBADNAME); - } -} - -TEST_F(LibraryTest, ParseSrvReplyAllocFail) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.abc.def.com", ns_t_srv)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSSrvRR("example.abc.def.com", 180, 0, 10, 8160, "example.abc.def.com")); - std::vector<byte> data = pkt.data(); - struct ares_srv_reply* srv = nullptr; - - for (int ii = 1; ii <= 5; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_srv_reply(data.data(), data.size(), &srv)) << ii; - } -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse-txt.cc b/test/ares-test-parse-txt.cc deleted file mode 100644 index 8aaaaa3..0000000 --- a/test/ares-test-parse-txt.cc +++ /dev/null @@ -1,266 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseTxtReplyOK) { - DNSPacket pkt; - std::string expected1 = "txt1.example.com"; - std::string expected2a = "txt2a"; - std::string expected2b("ABC\0ABC", 7); - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSTxtRR("example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("example.com", 100, {expected2a, expected2b})); - std::vector<byte> data = pkt.data(); - - struct ares_txt_reply* txt = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_txt_reply(data.data(), data.size(), &txt)); - ASSERT_NE(nullptr, txt); - EXPECT_EQ(std::vector<byte>(expected1.data(), expected1.data() + expected1.size()), - std::vector<byte>(txt->txt, txt->txt + txt->length)); - - struct ares_txt_reply* txt2 = txt->next; - ASSERT_NE(nullptr, txt2); - EXPECT_EQ(std::vector<byte>(expected2a.data(), expected2a.data() + expected2a.size()), - std::vector<byte>(txt2->txt, txt2->txt + txt2->length)); - - struct ares_txt_reply* txt3 = txt2->next; - ASSERT_NE(nullptr, txt3); - EXPECT_EQ(std::vector<byte>(expected2b.data(), expected2b.data() + expected2b.size()), - std::vector<byte>(txt3->txt, txt3->txt + txt3->length)); - EXPECT_EQ(nullptr, txt3->next); - - ares_free_data(txt); -} - -TEST_F(LibraryTest, ParseTxtExtReplyOK) { - DNSPacket pkt; - std::string expected1 = "txt1.example.com"; - std::string expected2a = "txt2a"; - std::string expected2b("ABC\0ABC", 7); - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSTxtRR("example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("example.com", 100, {expected2a, expected2b})); - std::vector<byte> data = pkt.data(); - - struct ares_txt_ext* txt = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_parse_txt_reply_ext(data.data(), data.size(), &txt)); - ASSERT_NE(nullptr, txt); - EXPECT_EQ(std::vector<byte>(expected1.data(), expected1.data() + expected1.size()), - std::vector<byte>(txt->txt, txt->txt + txt->length)); - EXPECT_EQ(1, txt->record_start); - - struct ares_txt_ext* txt2 = txt->next; - ASSERT_NE(nullptr, txt2); - EXPECT_EQ(std::vector<byte>(expected2a.data(), expected2a.data() + expected2a.size()), - std::vector<byte>(txt2->txt, txt2->txt + txt2->length)); - EXPECT_EQ(1, txt2->record_start); - - struct ares_txt_ext* txt3 = txt2->next; - ASSERT_NE(nullptr, txt3); - EXPECT_EQ(std::vector<byte>(expected2b.data(), expected2b.data() + expected2b.size()), - std::vector<byte>(txt3->txt, txt3->txt + txt3->length)); - EXPECT_EQ(nullptr, txt3->next); - EXPECT_EQ(0, txt3->record_start); - - ares_free_data(txt); -} - -TEST_F(LibraryTest, ParseTxtMalformedReply1) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // type TXT - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x03, // rdata length - 0x12, 'a', 'b', // invalid length - }; - - struct ares_txt_reply* txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - ASSERT_EQ(nullptr, txt); -} - -TEST_F(LibraryTest, ParseTxtMalformedReply2) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // type TXT - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // RR type - // truncated - }; - - struct ares_txt_reply* txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - ASSERT_EQ(nullptr, txt); -} - -TEST_F(LibraryTest, ParseTxtMalformedReply3) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // type TXT - 0x00, 0x01, // class IN - // Answer 1 - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x13, // rdata length INVALID - 0x02, 'a', 'b', - }; - - struct ares_txt_reply* txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - ASSERT_EQ(nullptr, txt); -} - -TEST_F(LibraryTest, ParseTxtMalformedReply4) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x10, // type TXT - 0x00, // TRUNCATED - }; - - struct ares_txt_reply* txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - ASSERT_EQ(nullptr, txt); -} - -TEST_F(LibraryTest, ParseTxtReplyErrors) { - DNSPacket pkt; - std::string expected1 = "txt1.example.com"; - std::string expected2a = "txt2a"; - std::string expected2b = "txt2b"; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSTxtRR("example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("example.com", 100, {expected2a, expected2b})); - std::vector<byte> data = pkt.data(); - struct ares_txt_reply* txt = nullptr; - - // No question. - pkt.questions_.clear(); - data = pkt.data(); - txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - EXPECT_EQ(nullptr, txt); - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - -#ifdef DISABLED - // Question != answer - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("Axample.com", ns_t_txt)); - data = pkt.data(); - EXPECT_EQ(ARES_ENODATA, ares_parse_txt_reply(data.data(), data.size(), &txt)); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_txt)); -#endif - - // Two questions. - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - data = pkt.data(); - txt = nullptr; - EXPECT_EQ(ARES_EBADRESP, ares_parse_txt_reply(data.data(), data.size(), &txt)); - EXPECT_EQ(nullptr, txt); - pkt.questions_.clear(); - pkt.add_question(new DNSQuestion("example.com", ns_t_mx)); - - // No answer. - pkt.answers_.clear(); - data = pkt.data(); - txt = nullptr; - EXPECT_EQ(ARES_ENODATA, ares_parse_txt_reply(data.data(), data.size(), &txt)); - EXPECT_EQ(nullptr, txt); - pkt.add_answer(new DNSTxtRR("example.com", 100, {expected1})); - - // Truncated packets. - for (size_t len = 1; len < data.size(); len++) { - txt = nullptr; - EXPECT_NE(ARES_SUCCESS, ares_parse_txt_reply(data.data(), len, &txt)); - EXPECT_EQ(nullptr, txt); - } -} - -TEST_F(LibraryTest, ParseTxtReplyAllocFail) { - DNSPacket pkt; - std::string expected1 = "txt1.example.com"; - std::string expected2a = "txt2a"; - std::string expected2b = "txt2b"; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion("example.com", ns_t_mx)) - .add_answer(new DNSCnameRR("example.com", 300, "c.example.com")) - .add_answer(new DNSTxtRR("c.example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("c.example.com", 100, {expected1})) - .add_answer(new DNSTxtRR("c.example.com", 100, {expected2a, expected2b})); - std::vector<byte> data = pkt.data(); - struct ares_txt_reply* txt = nullptr; - - for (int ii = 1; ii <= 13; ii++) { - ClearFails(); - SetAllocFail(ii); - EXPECT_EQ(ARES_ENOMEM, ares_parse_txt_reply(data.data(), data.size(), &txt)) << ii; - } -} - - -} // namespace test -} // namespace ares diff --git a/test/ares-test-parse.cc b/test/ares-test-parse.cc deleted file mode 100644 index 4c54fc9..0000000 --- a/test/ares-test-parse.cc +++ /dev/null @@ -1,219 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -#include <sstream> -#include <vector> - -namespace ares { -namespace test { - -TEST_F(LibraryTest, ParseRootName) { - DNSPacket pkt; - pkt.set_qid(0x1234).set_response().set_aa() - .add_question(new DNSQuestion(".", ns_t_a)) - .add_answer(new DNSARR(".", 100, {0x02, 0x03, 0x04, 0x05})); - std::vector<byte> data = pkt.data(); - - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseIndirectRootName) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0xC0, 0x04, // weird: pointer to a random zero earlier in the message - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0xC0, 0x04, - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseEscapedName) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x05, 'a', '\\', 'b', '.', 'c', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0x05, 'a', '\\', 'b', '.', 'c', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - EXPECT_EQ(1, count); - HostEnt hent(host); - std::stringstream ss; - ss << hent; - // The printable name is expanded with escapes. - EXPECT_EQ(11, hent.name_.size()); - EXPECT_EQ('a', hent.name_[0]); - EXPECT_EQ('\\', hent.name_[1]); - EXPECT_EQ('\\', hent.name_[2]); - EXPECT_EQ('b', hent.name_[3]); - EXPECT_EQ('\\', hent.name_[4]); - EXPECT_EQ('.', hent.name_[5]); - EXPECT_EQ('c', hent.name_[6]); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParsePartialCompressedName) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x03, 'w', 'w', 'w', - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0x03, 'w', 'w', 'w', - 0xc0, 0x10, // offset 16 - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'www.example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseFullyCompressedName) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0x03, 'w', 'w', 'w', - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0xc0, 0x0c, // offset 12 - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'www.example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); -} - -TEST_F(LibraryTest, ParseFullyCompressedName2) { - std::vector<byte> data = { - 0x12, 0x34, // qid - 0x84, // response + query + AA + not-TC + not-RD - 0x00, // not-RA + not-Z + not-AD + not-CD + rc=NoError - 0x00, 0x01, // num questions - 0x00, 0x01, // num answer RRs - 0x00, 0x00, // num authority RRs - 0x00, 0x00, // num additional RRs - // Question - 0xC0, 0x12, // pointer to later in message - 0x00, 0x01, // type A - 0x00, 0x01, // class IN - // Answer 1 - 0x03, 'w', 'w', 'w', - 0x07, 'e', 'x', 'a', 'm', 'p', 'l', 'e', - 0x03, 'c', 'o', 'm', - 0x00, - 0x00, 0x01, // RR type - 0x00, 0x01, // class IN - 0x01, 0x02, 0x03, 0x04, // TTL - 0x00, 0x04, // rdata length - 0x02, 0x03, 0x04, 0x05, - }; - struct hostent *host = nullptr; - struct ares_addrttl info[2]; - int count = 2; - EXPECT_EQ(ARES_SUCCESS, ares_parse_a_reply(data.data(), data.size(), - &host, info, &count)); - ASSERT_NE(nullptr, host); - std::stringstream ss; - ss << HostEnt(host); - EXPECT_EQ("{'www.example.com' aliases=[] addrs=[2.3.4.5]}", ss.str()); - ares_free_hostent(host); -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test.cc b/test/ares-test.cc deleted file mode 100644 index b86cba4..0000000 --- a/test/ares-test.cc +++ /dev/null @@ -1,667 +0,0 @@ -#include "ares-test.h" -#include "dns-proto.h" - -// Include ares internal files for DNS protocol details -#include "nameser.h" -#include "ares_dns.h" - -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif -#ifdef HAVE_NETINET_TCP_H -#include <netinet/tcp.h> -#endif -#include <stdio.h> -#include <stdlib.h> - -#include <functional> -#include <sstream> - -#ifdef WIN32 -#define BYTE_CAST (char *) -#define sclose(x) closesocket(x) -#define mkdir_(d, p) mkdir(d) -#else -#define BYTE_CAST -#define sclose(x) close(x) -#define mkdir_(d, p) mkdir(d, p) -#endif - -namespace ares { -namespace test { - -bool verbose = false; -int mock_port = 5300; - -unsigned long long LibraryTest::fails_ = 0; -std::map<size_t, int> LibraryTest::size_fails_; - -void ProcessWork(ares_channel channel, - std::function<std::set<int>()> get_extrafds, - std::function<void(int)> process_extra) { - int nfds, count; - fd_set readers, writers; - struct timeval tv; - while (true) { - // Retrieve the set of file descriptors that the library wants us to monitor. - FD_ZERO(&readers); - FD_ZERO(&writers); - nfds = ares_fds(channel, &readers, &writers); - if (nfds == 0) // no work left to do in the library - return; - - // Add in the extra FDs if present. - std::set<int> extrafds = get_extrafds(); - for (int extrafd : extrafds) { - FD_SET(extrafd, &readers); - if (extrafd >= nfds) { - nfds = extrafd + 1; - } - } - - // Wait for activity or timeout. - tv.tv_sec = 0; - tv.tv_usec = 100000; // 100ms - count = select(nfds, &readers, &writers, nullptr, &tv); - if (count < 0) { - fprintf(stderr, "select() failed, errno %d\n", errno); - return; - } - - // Let the library process any activity. - ares_process(channel, &readers, &writers); - - // Let the provided callback process any activity on the extra FD. - for (int extrafd : extrafds) { - if (FD_ISSET(extrafd, &readers)) { - process_extra(extrafd); - } - } - } -} - -// static -void LibraryTest::SetAllocFail(int nth) { - assert(nth > 0); - assert(nth <= (int)(8 * sizeof(fails_))); - fails_ |= (1LL << (nth - 1)); -} - -// static -void LibraryTest::SetAllocSizeFail(size_t size) { - size_fails_[size]++; -} - -// static -void LibraryTest::ClearFails() { - fails_ = 0; - size_fails_.clear(); -} - - -// static -bool LibraryTest::ShouldAllocFail(size_t size) { - bool fail = (fails_ & 0x01); - fails_ >>= 1; - if (size_fails_[size] > 0) { - size_fails_[size]--; - fail = true; - } - return fail; -} - -// static -void* LibraryTest::amalloc(size_t size) { - if (ShouldAllocFail(size)) { - if (verbose) std::cerr << "Failing malloc(" << size << ") request" << std::endl; - return nullptr; - } else { - return malloc(size); - } -} - -// static -void* LibraryTest::arealloc(void *ptr, size_t size) { - if (ShouldAllocFail(size)) { - if (verbose) std::cerr << "Failing realloc(" << ptr << ", " << size << ") request" << std::endl; - return nullptr; - } else { - return realloc(ptr, size); - } -} - -// static -void LibraryTest::afree(void *ptr) { - free(ptr); -} - -std::set<int> NoExtraFDs() { - return std::set<int>(); -} - -void DefaultChannelTest::Process() { - ProcessWork(channel_, NoExtraFDs, nullptr); -} - -void DefaultChannelModeTest::Process() { - ProcessWork(channel_, NoExtraFDs, nullptr); -} - -MockServer::MockServer(int family, int port, int tcpport) - : udpport_(port), tcpport_(tcpport ? tcpport : udpport_), qid_(-1) { - // Create a TCP socket to receive data on. - tcpfd_ = socket(family, SOCK_STREAM, 0); - EXPECT_NE(-1, tcpfd_); - int optval = 1; - setsockopt(tcpfd_, SOL_SOCKET, SO_REUSEADDR, - BYTE_CAST &optval , sizeof(int)); - // Send TCP data right away. - setsockopt(tcpfd_, IPPROTO_TCP, TCP_NODELAY, - BYTE_CAST &optval , sizeof(int)); - - // Create a UDP socket to receive data on. - udpfd_ = socket(family, SOCK_DGRAM, 0); - EXPECT_NE(-1, udpfd_); - - // Bind the sockets to the given port. - if (family == AF_INET) { - struct sockaddr_in addr; - memset(&addr, 0, sizeof(addr)); - addr.sin_family = AF_INET; - addr.sin_addr.s_addr = htonl(INADDR_ANY); - addr.sin_port = htons(tcpport_); - int tcprc = bind(tcpfd_, (struct sockaddr*)&addr, sizeof(addr)); - EXPECT_EQ(0, tcprc) << "Failed to bind AF_INET to TCP port " << tcpport_; - addr.sin_port = htons(udpport_); - int udprc = bind(udpfd_, (struct sockaddr*)&addr, sizeof(addr)); - EXPECT_EQ(0, udprc) << "Failed to bind AF_INET to UDP port " << udpport_; - } else { - EXPECT_EQ(AF_INET6, family); - struct sockaddr_in6 addr; - memset(&addr, 0, sizeof(addr)); - addr.sin6_family = AF_INET6; - memset(&addr.sin6_addr, 0, sizeof(addr.sin6_addr)); // in6addr_any - addr.sin6_port = htons(tcpport_); - int tcprc = bind(tcpfd_, (struct sockaddr*)&addr, sizeof(addr)); - EXPECT_EQ(0, tcprc) << "Failed to bind AF_INET6 to TCP port " << tcpport_; - addr.sin6_port = htons(udpport_); - int udprc = bind(udpfd_, (struct sockaddr*)&addr, sizeof(addr)); - EXPECT_EQ(0, udprc) << "Failed to bind AF_INET6 to UDP port " << udpport_; - } - if (verbose) std::cerr << "Configured " - << (family == AF_INET ? "IPv4" : "IPv6") - << " mock server with TCP socket " << tcpfd_ - << " on port " << tcpport_ - << " and UDP socket " << udpfd_ - << " on port " << udpport_ << std::endl; - - // For TCP, also need to listen for connections. - EXPECT_EQ(0, listen(tcpfd_, 5)) << "Failed to listen for TCP connections"; -} - -MockServer::~MockServer() { - for (int fd : connfds_) { - sclose(fd); - } - sclose(tcpfd_); - sclose(udpfd_); -} - -void MockServer::ProcessFD(int fd) { - if (fd != tcpfd_ && fd != udpfd_ && connfds_.find(fd) == connfds_.end()) { - // Not one of our FDs. - return; - } - if (fd == tcpfd_) { - int connfd = accept(tcpfd_, NULL, NULL); - if (connfd < 0) { - std::cerr << "Error accepting connection on fd " << fd << std::endl; - } else { - connfds_.insert(connfd); - } - return; - } - - // Activity on a data-bearing file descriptor. - struct sockaddr_storage addr; - socklen_t addrlen = sizeof(addr); - byte buffer[2048]; - int len = recvfrom(fd, BYTE_CAST buffer, sizeof(buffer), 0, - (struct sockaddr *)&addr, &addrlen); - byte* data = buffer; - if (fd != udpfd_) { - if (len == 0) { - connfds_.erase(std::find(connfds_.begin(), connfds_.end(), fd)); - sclose(fd); - return; - } - if (len < 2) { - std::cerr << "Packet too short (" << len << ")" << std::endl; - return; - } - int tcplen = (data[0] << 8) + data[1]; - data += 2; - len -= 2; - if (tcplen != len) { - std::cerr << "Warning: TCP length " << tcplen - << " doesn't match remaining data length " << len << std::endl; - } - } - - // Assume the packet is a well-formed DNS request and extract the request - // details. - if (len < NS_HFIXEDSZ) { - std::cerr << "Packet too short (" << len << ")" << std::endl; - return; - } - int qid = DNS_HEADER_QID(data); - if (DNS_HEADER_QR(data) != 0) { - std::cerr << "Not a request" << std::endl; - return; - } - if (DNS_HEADER_OPCODE(data) != ns_o_query) { - std::cerr << "Not a query (opcode " << DNS_HEADER_OPCODE(data) - << ")" << std::endl; - return; - } - if (DNS_HEADER_QDCOUNT(data) != 1) { - std::cerr << "Unexpected question count (" << DNS_HEADER_QDCOUNT(data) - << ")" << std::endl; - return; - } - byte* question = data + 12; - int qlen = len - 12; - - char *name = nullptr; - long enclen; - ares_expand_name(question, data, len, &name, &enclen); - if (!name) { - std::cerr << "Failed to retrieve name" << std::endl; - return; - } - qlen -= enclen; - question += enclen; - std::string namestr(name); - free(name); - - if (qlen < 4) { - std::cerr << "Unexpected question size (" << qlen - << " bytes after name)" << std::endl; - return; - } - if (DNS_QUESTION_CLASS(question) != ns_c_in) { - std::cerr << "Unexpected question class (" << DNS_QUESTION_CLASS(question) - << ")" << std::endl; - return; - } - int rrtype = DNS_QUESTION_TYPE(question); - - if (verbose) { - std::vector<byte> req(data, data + len); - std::cerr << "received " << (fd == udpfd_ ? "UDP" : "TCP") << " request " << PacketToString(req) - << " on port " << (fd == udpfd_ ? udpport_ : tcpport_) << std::endl; - std::cerr << "ProcessRequest(" << qid << ", '" << namestr - << "', " << RRTypeToString(rrtype) << ")" << std::endl; - } - ProcessRequest(fd, &addr, addrlen, qid, namestr, rrtype); -} - -std::set<int> MockServer::fds() const { - std::set<int> result = connfds_; - result.insert(tcpfd_); - result.insert(udpfd_); - return result; -} - -void MockServer::ProcessRequest(int fd, struct sockaddr_storage* addr, int addrlen, - int qid, const std::string& name, int rrtype) { - // Before processing, let gMock know the request is happening. - OnRequest(name, rrtype); - - if (reply_.size() == 0) { - return; - } - - // Make a local copy of the current pending reply. - std::vector<byte> reply = reply_; - - if (qid_ >= 0) { - // Use the explicitly specified query ID. - qid = qid_; - } - if (reply.size() >= 2) { - // Overwrite the query ID if space to do so. - reply[0] = (byte)((qid >> 8) & 0xff); - reply[1] = (byte)(qid & 0xff); - } - if (verbose) std::cerr << "sending reply " << PacketToString(reply) - << " on port " << ((fd == udpfd_) ? udpport_ : tcpport_) << std::endl; - - // Prefix with 2-byte length if TCP. - if (fd != udpfd_) { - int len = reply.size(); - std::vector<byte> vlen = {(byte)((len & 0xFF00) >> 8), (byte)(len & 0xFF)}; - reply.insert(reply.begin(), vlen.begin(), vlen.end()); - // Also, don't bother with the destination address. - addr = nullptr; - addrlen = 0; - } - - int rc = sendto(fd, BYTE_CAST reply.data(), reply.size(), 0, - (struct sockaddr *)addr, addrlen); - if (rc < static_cast<int>(reply.size())) { - std::cerr << "Failed to send full reply, rc=" << rc << std::endl; - } -} - -// static -MockChannelOptsTest::NiceMockServers MockChannelOptsTest::BuildServers(int count, int family, int base_port) { - NiceMockServers servers; - assert(count > 0); - for (int ii = 0; ii < count; ii++) { - std::unique_ptr<NiceMockServer> server(new NiceMockServer(family, base_port + ii)); - servers.push_back(std::move(server)); - } - return servers; -} - -MockChannelOptsTest::MockChannelOptsTest(int count, - int family, - bool force_tcp, - struct ares_options* givenopts, - int optmask) - : servers_(BuildServers(count, family, mock_port)), - server_(*servers_[0].get()), channel_(nullptr) { - // Set up channel options. - struct ares_options opts; - if (givenopts) { - memcpy(&opts, givenopts, sizeof(opts)); - } else { - memset(&opts, 0, sizeof(opts)); - } - - // Point the library at the first mock server by default (overridden below). - opts.udp_port = mock_port; - optmask |= ARES_OPT_UDP_PORT; - opts.tcp_port = mock_port; - optmask |= ARES_OPT_TCP_PORT; - - // If not already overridden, set short-ish timeouts. - if (!(optmask & (ARES_OPT_TIMEOUTMS|ARES_OPT_TIMEOUT))) { - opts.timeout = 1500; - optmask |= ARES_OPT_TIMEOUTMS; - } - // If not already overridden, set 3 retries. - if (!(optmask & ARES_OPT_TRIES)) { - opts.tries = 3; - optmask |= ARES_OPT_TRIES; - } - // If not already overridden, set search domains. - const char *domains[3] = {"first.com", "second.org", "third.gov"}; - if (!(optmask & ARES_OPT_DOMAINS)) { - opts.ndomains = 3; - opts.domains = (char**)domains; - optmask |= ARES_OPT_DOMAINS; - } - if (force_tcp) { - opts.flags |= ARES_FLAG_USEVC; - optmask |= ARES_OPT_FLAGS; - } - - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel_, &opts, optmask)); - EXPECT_NE(nullptr, channel_); - - // Set up servers after construction so we can set individual ports - struct ares_addr_port_node* prev = nullptr; - struct ares_addr_port_node* first = nullptr; - for (const auto& server : servers_) { - struct ares_addr_port_node* node = (struct ares_addr_port_node*)malloc(sizeof(*node)); - if (prev) { - prev->next = node; - } else { - first = node; - } - node->next = nullptr; - node->family = family; - node->udp_port = server->udpport(); - node->tcp_port = server->tcpport(); - if (family == AF_INET) { - node->addr.addr4.s_addr = htonl(0x7F000001); - } else { - memset(&node->addr.addr6, 0, sizeof(node->addr.addr6)); - node->addr.addr6._S6_un._S6_u8[15] = 1; - } - prev = node; - } - EXPECT_EQ(ARES_SUCCESS, ares_set_servers_ports(channel_, first)); - - while (first) { - prev = first; - first = first->next; - free(prev); - } - if (verbose) { - std::cerr << "Configured library with servers:"; - std::vector<std::string> servers = GetNameServers(channel_); - for (const auto& server : servers) { - std::cerr << " " << server; - } - std::cerr << std::endl; - } -} - -MockChannelOptsTest::~MockChannelOptsTest() { - if (channel_) { - ares_destroy(channel_); - } - channel_ = nullptr; -} - -std::set<int> MockChannelOptsTest::fds() const { - std::set<int> fds; - for (const auto& server : servers_) { - std::set<int> serverfds = server->fds(); - fds.insert(serverfds.begin(), serverfds.end()); - } - return fds; -} - -void MockChannelOptsTest::ProcessFD(int fd) { - for (auto& server : servers_) { - server->ProcessFD(fd); - } -} - -void MockChannelOptsTest::Process() { - using namespace std::placeholders; - ProcessWork(channel_, - std::bind(&MockChannelOptsTest::fds, this), - std::bind(&MockChannelOptsTest::ProcessFD, this, _1)); -} - -std::ostream& operator<<(std::ostream& os, const HostResult& result) { - os << '{'; - if (result.done_) { - os << StatusToString(result.status_) << " " << result.host_; - } else { - os << "(incomplete)"; - } - os << '}'; - return os; -} - -HostEnt::HostEnt(const struct hostent *hostent) : addrtype_(-1) { - if (!hostent) - return; - if (hostent->h_name) - name_ = hostent->h_name; - if (hostent->h_aliases) { - char** palias = hostent->h_aliases; - while (*palias != nullptr) { - aliases_.push_back(*palias); - palias++; - } - } - addrtype_ = hostent->h_addrtype; - if (hostent->h_addr_list) { - char** paddr = hostent->h_addr_list; - while (*paddr != nullptr) { - std::string addr = AddressToString(*paddr, hostent->h_length); - addrs_.push_back(addr); - paddr++; - } - } -} - -std::ostream& operator<<(std::ostream& os, const HostEnt& host) { - os << '{'; - os << "'" << host.name_ << "' " - << "aliases=["; - for (size_t ii = 0; ii < host.aliases_.size(); ii++) { - if (ii > 0) os << ", "; - os << host.aliases_[ii]; - } - os << "] "; - os << "addrs=["; - for (size_t ii = 0; ii < host.addrs_.size(); ii++) { - if (ii > 0) os << ", "; - os << host.addrs_[ii]; - } - os << "]"; - os << '}'; - return os; -} - -void HostCallback(void *data, int status, int timeouts, - struct hostent *hostent) { - EXPECT_NE(nullptr, data); - HostResult* result = reinterpret_cast<HostResult*>(data); - result->done_ = true; - result->status_ = status; - result->timeouts_ = timeouts; - result->host_ = HostEnt(hostent); - if (verbose) std::cerr << "HostCallback(" << *result << ")" << std::endl; -} - -std::ostream& operator<<(std::ostream& os, const SearchResult& result) { - os << '{'; - if (result.done_) { - os << StatusToString(result.status_) << " " << PacketToString(result.data_); - } else { - os << "(incomplete)"; - } - os << '}'; - return os; -} - -void SearchCallback(void *data, int status, int timeouts, - unsigned char *abuf, int alen) { - EXPECT_NE(nullptr, data); - SearchResult* result = reinterpret_cast<SearchResult*>(data); - result->done_ = true; - result->status_ = status; - result->timeouts_ = timeouts; - result->data_.assign(abuf, abuf + alen); - if (verbose) std::cerr << "SearchCallback(" << *result << ")" << std::endl; -} - -std::ostream& operator<<(std::ostream& os, const NameInfoResult& result) { - os << '{'; - if (result.done_) { - os << StatusToString(result.status_) << " " << result.node_ << " " << result.service_; - } else { - os << "(incomplete)"; - } - os << '}'; - return os; -} - -void NameInfoCallback(void *data, int status, int timeouts, - char *node, char *service) { - EXPECT_NE(nullptr, data); - NameInfoResult* result = reinterpret_cast<NameInfoResult*>(data); - result->done_ = true; - result->status_ = status; - result->timeouts_ = timeouts; - result->node_ = std::string(node ? node : ""); - result->service_ = std::string(service ? service : ""); - if (verbose) std::cerr << "NameInfoCallback(" << *result << ")" << std::endl; -} - -std::vector<std::string> GetNameServers(ares_channel channel) { - struct ares_addr_port_node* servers = nullptr; - EXPECT_EQ(ARES_SUCCESS, ares_get_servers_ports(channel, &servers)); - struct ares_addr_port_node* server = servers; - std::vector<std::string> results; - while (server) { - std::stringstream ss; - switch (server->family) { - case AF_INET: - ss << AddressToString((char*)&server->addr.addr4, 4); - break; - case AF_INET6: - if (server->udp_port != 0) { - ss << '['; - } - ss << AddressToString((char*)&server->addr.addr6, 16); - if (server->udp_port != 0) { - ss << ']'; - } - break; - default: - results.push_back("<unknown family>"); - break; - } - if (server->udp_port != 0) { - ss << ":" << server->udp_port; - } - results.push_back(ss.str()); - server = server->next; - } - if (servers) ares_free_data(servers); - return results; -} - -TransientDir::TransientDir(const std::string& dirname) : dirname_(dirname) { - if (mkdir_(dirname_.c_str(), 0755) != 0) { - std::cerr << "Failed to create subdirectory '" << dirname_ << "'" << std::endl; - } -} - -TransientDir::~TransientDir() { - rmdir(dirname_.c_str()); -} - -TransientFile::TransientFile(const std::string& filename, - const std::string& contents) - : filename_(filename) { - FILE *f = fopen(filename.c_str(), "w"); - if (f == nullptr) { - std::cerr << "Error: failed to create '" << filename << "'" << std::endl; - return; - } - int rc = fwrite(contents.data(), 1, contents.size(), f); - if (rc != (int)contents.size()) { - std::cerr << "Error: failed to write contents of '" << filename << "'" << std::endl; - } - fclose(f); -} - -TransientFile::~TransientFile() { - unlink(filename_.c_str()); -} - -std::string TempNam(const char *dir, const char *prefix) { - char *p = tempnam(dir, prefix); - std::string result(p); - free(p); - return result; -} - -TempFile::TempFile(const std::string& contents) - : TransientFile(TempNam(nullptr, "ares"), contents) { - -} - -} // namespace test -} // namespace ares diff --git a/test/ares-test.h b/test/ares-test.h deleted file mode 100644 index a00e53a..0000000 --- a/test/ares-test.h +++ /dev/null @@ -1,383 +0,0 @@ -// -*- mode: c++ -*- -#ifndef ARES_TEST_H -#define ARES_TEST_H - -#include "ares.h" - -#include "dns-proto.h" - -// Include ares internal file for DNS protocol constants -#include "nameser.h" - -#include "gtest/gtest.h" -#include "gmock/gmock.h" - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif -#if defined(HAVE_USER_NAMESPACE) && defined(HAVE_UTS_NAMESPACE) -#define HAVE_CONTAINER -#endif - -#include <functional> -#include <list> -#include <map> -#include <memory> -#include <set> -#include <string> -#include <utility> -#include <vector> - -namespace ares { - -typedef unsigned char byte; - -namespace test { - -extern bool verbose; -extern int mock_port; - -// Process all pending work on ares-owned file descriptors, plus -// optionally the given set-of-FDs + work function. -void ProcessWork(ares_channel channel, - std::function<std::set<int>()> get_extrafds, - std::function<void(int)> process_extra); -std::set<int> NoExtraFDs(); - -// Test fixture that ensures library initialization, and allows -// memory allocations to be failed. -class LibraryTest : public ::testing::Test { - public: - LibraryTest() { - EXPECT_EQ(ARES_SUCCESS, - ares_library_init_mem(ARES_LIB_INIT_ALL, - &LibraryTest::amalloc, - &LibraryTest::afree, - &LibraryTest::arealloc)); - } - ~LibraryTest() { - ares_library_cleanup(); - ClearFails(); - } - // Set the n-th malloc call (of any size) from the library to fail. - // (nth == 1 means the next call) - static void SetAllocFail(int nth); - // Set the next malloc call for the given size to fail. - static void SetAllocSizeFail(size_t size); - // Remove any pending alloc failures. - static void ClearFails(); - - static void *amalloc(size_t size); - static void* arealloc(void *ptr, size_t size); - static void afree(void *ptr); - private: - static bool ShouldAllocFail(size_t size); - static unsigned long long fails_; - static std::map<size_t, int> size_fails_; -}; - -// Test fixture that uses a default channel. -class DefaultChannelTest : public LibraryTest { - public: - DefaultChannelTest() : channel_(nullptr) { - EXPECT_EQ(ARES_SUCCESS, ares_init(&channel_)); - EXPECT_NE(nullptr, channel_); - } - - ~DefaultChannelTest() { - ares_destroy(channel_); - channel_ = nullptr; - } - - // Process all pending work on ares-owned file descriptors. - void Process(); - - protected: - ares_channel channel_; -}; - -// Test fixture that uses a default channel with the specified lookup mode. -class DefaultChannelModeTest - : public LibraryTest, - public ::testing::WithParamInterface<std::string> { - public: - DefaultChannelModeTest() : channel_(nullptr) { - struct ares_options opts = {0}; - opts.lookups = strdup(GetParam().c_str()); - int optmask = ARES_OPT_LOOKUPS; - EXPECT_EQ(ARES_SUCCESS, ares_init_options(&channel_, &opts, optmask)); - EXPECT_NE(nullptr, channel_); - free(opts.lookups); - } - - ~DefaultChannelModeTest() { - ares_destroy(channel_); - channel_ = nullptr; - } - - // Process all pending work on ares-owned file descriptors. - void Process(); - - protected: - ares_channel channel_; -}; - -// Mock DNS server to allow responses to be scripted by tests. -class MockServer { - public: - MockServer(int family, int port, int tcpport = 0); - ~MockServer(); - - // Mock method indicating the processing of a particular <name, RRtype> - // request. - MOCK_METHOD2(OnRequest, void(const std::string& name, int rrtype)); - - // Set the reply to be sent next; the query ID field will be overwritten - // with the value from the request. - void SetReplyData(const std::vector<byte>& reply) { reply_ = reply; } - void SetReply(const DNSPacket* reply) { SetReplyData(reply->data()); } - void SetReplyQID(int qid) { qid_ = qid; } - - // The set of file descriptors that the server handles. - std::set<int> fds() const; - - // Process activity on a file descriptor. - void ProcessFD(int fd); - - // Ports the server is responding to - int udpport() const { return udpport_; } - int tcpport() const { return tcpport_; } - - private: - void ProcessRequest(int fd, struct sockaddr_storage* addr, int addrlen, - int qid, const std::string& name, int rrtype); - - int udpport_; - int tcpport_; - int udpfd_; - int tcpfd_; - std::set<int> connfds_; - std::vector<byte> reply_; - int qid_; -}; - -// Test fixture that uses a mock DNS server. -class MockChannelOptsTest : public LibraryTest { - public: - MockChannelOptsTest(int count, int family, bool force_tcp, struct ares_options* givenopts, int optmask); - ~MockChannelOptsTest(); - - // Process all pending work on ares-owned and mock-server-owned file descriptors. - void Process(); - - protected: - // NiceMockServer doesn't complain about uninteresting calls. - typedef testing::NiceMock<MockServer> NiceMockServer; - typedef std::vector< std::unique_ptr<NiceMockServer> > NiceMockServers; - - std::set<int> fds() const; - void ProcessFD(int fd); - - static NiceMockServers BuildServers(int count, int family, int base_port); - - NiceMockServers servers_; - // Convenience reference to first server. - NiceMockServer& server_; - ares_channel channel_; -}; - -class MockChannelTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface< std::pair<int, bool> > { - public: - MockChannelTest() : MockChannelOptsTest(1, GetParam().first, GetParam().second, nullptr, 0) {} -}; - -class MockUDPChannelTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface<int> { - public: - MockUDPChannelTest() : MockChannelOptsTest(1, GetParam(), false, nullptr, 0) {} -}; - -class MockTCPChannelTest - : public MockChannelOptsTest, - public ::testing::WithParamInterface<int> { - public: - MockTCPChannelTest() : MockChannelOptsTest(1, GetParam(), true, nullptr, 0) {} -}; - -// gMock action to set the reply for a mock server. -ACTION_P2(SetReplyData, mockserver, data) { - mockserver->SetReplyData(data); -} -ACTION_P2(SetReply, mockserver, reply) { - mockserver->SetReply(reply); -} -ACTION_P2(SetReplyQID, mockserver, qid) { - mockserver->SetReplyQID(qid); -} -// gMock action to cancel a channel. -ACTION_P2(CancelChannel, mockserver, channel) { - ares_cancel(channel); -} - -// C++ wrapper for struct hostent. -struct HostEnt { - HostEnt() : addrtype_(-1) {} - HostEnt(const struct hostent* hostent); - std::string name_; - std::vector<std::string> aliases_; - int addrtype_; // AF_INET or AF_INET6 - std::vector<std::string> addrs_; -}; -std::ostream& operator<<(std::ostream& os, const HostEnt& result); - -// Structure that describes the result of an ares_host_callback invocation. -struct HostResult { - // Whether the callback has been invoked. - bool done_; - // Explicitly provided result information. - int status_; - int timeouts_; - // Contents of the hostent structure, if provided. - HostEnt host_; -}; -std::ostream& operator<<(std::ostream& os, const HostResult& result); - -// Structure that describes the result of an ares_callback invocation. -struct SearchResult { - // Whether the callback has been invoked. - bool done_; - // Explicitly provided result information. - int status_; - int timeouts_; - std::vector<byte> data_; -}; -std::ostream& operator<<(std::ostream& os, const SearchResult& result); - -// Structure that describes the result of an ares_nameinfo_callback invocation. -struct NameInfoResult { - // Whether the callback has been invoked. - bool done_; - // Explicitly provided result information. - int status_; - int timeouts_; - std::string node_; - std::string service_; -}; -std::ostream& operator<<(std::ostream& os, const NameInfoResult& result); - -// Standard implementation of ares callbacks that fill out the corresponding -// structures. -void HostCallback(void *data, int status, int timeouts, - struct hostent *hostent); -void SearchCallback(void *data, int status, int timeouts, - unsigned char *abuf, int alen); -void NameInfoCallback(void *data, int status, int timeouts, - char *node, char *service); - -// Retrieve the name servers used by a channel. -std::vector<std::string> GetNameServers(ares_channel channel); - - -// RAII class to temporarily create a directory of a given name. -class TransientDir { - public: - TransientDir(const std::string& dirname); - ~TransientDir(); - - private: - std::string dirname_; -}; - -// C++ wrapper around tempnam() -std::string TempNam(const char *dir, const char *prefix); - -// RAII class to temporarily create file of a given name and contents. -class TransientFile { - public: - TransientFile(const std::string &filename, const std::string &contents); - ~TransientFile(); - - protected: - std::string filename_; -}; - -// RAII class for a temporary file with the given contents. -class TempFile : public TransientFile { - public: - TempFile(const std::string& contents); - const char* filename() const { return filename_.c_str(); } -}; - -#ifndef WIN32 -// RAII class for a temporary environment variable value. -class EnvValue { - public: - EnvValue(const char *name, const char *value) : name_(name), restore_(false) { - char *original = getenv(name); - if (original) { - restore_ = true; - original_ = original; - } - setenv(name_.c_str(), value, 1); - } - ~EnvValue() { - if (restore_) { - setenv(name_.c_str(), original_.c_str(), 1); - } else { - unsetenv(name_.c_str()); - } - } - private: - std::string name_; - bool restore_; - std::string original_; -}; -#endif - - -#ifdef HAVE_CONTAINER -// Linux-specific functionality for running code in a container, implemented -// in ares-test-ns.cc -typedef std::function<int(void)> VoidToIntFn; -typedef std::vector<std::pair<std::string, std::string>> NameContentList; - -class ContainerFilesystem { - public: - ContainerFilesystem(NameContentList files, const std::string& mountpt); - ~ContainerFilesystem(); - std::string root() const { return rootdir_; }; - std::string mountpt() const { return mountpt_; }; - private: - void EnsureDirExists(const std::string& dir); - std::string rootdir_; - std::string mountpt_; - std::list<std::string> dirs_; - std::vector<std::unique_ptr<TransientFile>> files_; -}; - -int RunInContainer(ContainerFilesystem* fs, const std::string& hostname, - const std::string& domainname, VoidToIntFn fn); - -#define ICLASS_NAME(casename, testname) Contained##casename##_##testname -#define CONTAINED_TEST_F(casename, testname, hostname, domainname, files) \ - class ICLASS_NAME(casename, testname) : public casename { \ - public: \ - ICLASS_NAME(casename, testname)() {} \ - static int InnerTestBody(); \ - }; \ - TEST_F(ICLASS_NAME(casename, testname), _) { \ - ContainerFilesystem chroot(files, ".."); \ - VoidToIntFn fn(ICLASS_NAME(casename, testname)::InnerTestBody); \ - EXPECT_EQ(0, RunInContainer(&chroot, hostname, domainname, fn)); \ - } \ - int ICLASS_NAME(casename, testname)::InnerTestBody() - -#endif - -} // namespace test -} // namespace ares - -#endif diff --git a/test/config.h.in b/test/config.h.in deleted file mode 100644 index 9e25cdb..0000000 --- a/test/config.h.in +++ /dev/null @@ -1,80 +0,0 @@ -/* config.h.in. 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