resolv-tests.c revision 8f4aaae28c88c707853f8f28d8babc4efe0c1bf6
/*
SSSD
Async resolver tests
Authors:
Martin Nagy <mnagy@redhat.com>
Jakub Hrozek <jhrozek@redhat.com>
Copyright (C) Red Hat, Inc 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <check.h>
#include <string.h>
#include <talloc.h>
#include <tevent.h>
#include <popt.h>
#include <arpa/inet.h>
#include "tests/common.h"
#include "util/util.h"
/* Interface under test */
#include "resolv/async_resolv.h"
static int use_net_test;
static char *txt_host;
static char *srv_host;
struct resolv_test_ctx {
struct tevent_context *ev;
struct resolv_ctx *resolv;
enum {
TESTING_HOSTNAME,
TESTING_TXT,
TESTING_SRV,
} tested_function;
int error;
bool done;
};
static int setup_resolv_test(struct resolv_test_ctx **ctx)
{
struct resolv_test_ctx *test_ctx;
int ret;
test_ctx = talloc_zero(global_talloc_context, struct resolv_test_ctx);
if (test_ctx == NULL) {
fail("Could not allocate memory for test context");
return ENOMEM;
}
test_ctx->ev = tevent_context_init(test_ctx);
if (test_ctx->ev == NULL) {
fail("Could not init tevent context");
talloc_free(test_ctx);
return EFAULT;
}
ret = resolv_init(test_ctx, test_ctx->ev, 5, &test_ctx->resolv);
if (ret != EOK) {
fail("Could not init resolv context");
talloc_free(test_ctx);
return ret;
}
*ctx = test_ctx;
return EOK;
}
static int test_loop(struct resolv_test_ctx *data)
{
while (!data->done)
tevent_loop_once(data->ev);
return data->error;
}
START_TEST(test_copy_hostent)
{
void *ctx;
struct hostent *new_he;
char name[] = "foo.example.com";
char alias_1[] = "bar.example.com";
char alias_2[] = "baz.example.com";
char *aliases[] = { alias_1, alias_2, NULL };
char addr_1[] = { 1, 2, 3, 4 };
char addr_2[] = { 4, 3, 2, 1 };
char *addr_list[] = { addr_1, addr_2, NULL };
struct hostent he = {
name, aliases, 123 /* Whatever. */,
sizeof(addr_1), addr_list
};
ctx = talloc_new(global_talloc_context);
fail_if(ctx == NULL);
check_leaks_push(ctx);
new_he = resolv_copy_hostent(ctx, &he);
fail_if(new_he == NULL);
fail_if(strcmp(new_he->h_name, name));
fail_if(strcmp(new_he->h_aliases[0], alias_1));
fail_if(strcmp(new_he->h_aliases[1], alias_2));
fail_if(new_he->h_aliases[2] != NULL);
fail_if(new_he->h_addrtype != 123);
fail_if(new_he->h_length != sizeof(addr_1));
fail_if(memcmp(new_he->h_addr_list[0], addr_1, sizeof(addr_1)));
fail_if(memcmp(new_he->h_addr_list[1], addr_2, sizeof(addr_1)));
fail_if(new_he->h_addr_list[2] != NULL);
talloc_free(new_he);
check_leaks_pop(ctx);
}
END_TEST
static void test_localhost(struct tevent_req *req)
{
int recv_status;
int status;
struct hostent *hostent;
int i;
struct resolv_test_ctx *test_ctx = tevent_req_callback_data(req,
struct resolv_test_ctx);
test_ctx->done = true;
recv_status = resolv_gethostbyname_recv(req, test_ctx,
&status, NULL, &hostent);
talloc_zfree(req);
if (recv_status != EOK) {
DEBUG(2, ("resolv_gethostbyname_recv failed: %d\n", recv_status));
test_ctx->error = recv_status;
return;
}
DEBUG(7, ("resolv_gethostbyname_recv status: %d\n", status));
test_ctx->error = ENOENT;
for (i = 0; hostent->h_addr_list[i]; i++) {
char addr_buf[256];
inet_ntop(hostent->h_addrtype, hostent->h_addr_list[i], addr_buf, sizeof(addr_buf));
/* test that localhost resolves to 127.0.0.1 or ::1 */
if (strcmp(addr_buf, "127.0.0.1") == 0 || strcmp(addr_buf, "::1") == 0) {
test_ctx->error = EOK;
}
}
talloc_free(hostent);
}
START_TEST(test_resolv_localhost)
{
struct resolv_test_ctx *test_ctx;
int ret = EOK;
struct tevent_req *req;
const char *hostname = "localhost.localdomain";
ret = setup_resolv_test(&test_ctx);
if (ret != EOK) {
fail("Could not set up test");
return;
}
check_leaks_push(test_ctx);
req = resolv_gethostbyname_send(test_ctx, test_ctx->ev,
test_ctx->resolv, hostname, IPV4_FIRST);
DEBUG(7, ("Sent resolv_gethostbyname\n"));
if (req == NULL) {
ret = ENOMEM;
}
if (ret == EOK) {
tevent_req_set_callback(req, test_localhost, test_ctx);
ret = test_loop(test_ctx);
}
check_leaks_pop(test_ctx);
fail_unless(ret == EOK);
talloc_zfree(test_ctx);
}
END_TEST
static void test_negative(struct tevent_req *req)
{
int recv_status;
int status;
struct hostent *hostent;
struct resolv_test_ctx *test_ctx;
test_ctx = tevent_req_callback_data(req, struct resolv_test_ctx);
test_ctx->done = true;
recv_status = resolv_gethostbyname_recv(req, test_ctx,
&status, NULL, &hostent);
talloc_zfree(req);
if (recv_status == EOK) {
DEBUG(7, ("resolv_gethostbyname_recv succeeded in a negative test\n"));
return;
}
test_ctx->error = status;
DEBUG(2, ("resolv_gethostbyname_recv status: %d: %s\n", status, resolv_strerror(status)));
}
START_TEST(test_resolv_negative)
{
int ret = EOK;
struct tevent_req *req;
const char *hostname = "sssd.foo";
struct resolv_test_ctx *test_ctx;
ret = setup_resolv_test(&test_ctx);
if (ret != EOK) {
fail("Could not set up test");
return;
}
check_leaks_push(test_ctx);
req = resolv_gethostbyname_send(test_ctx, test_ctx->ev,
test_ctx->resolv, hostname, IPV4_FIRST);
DEBUG(7, ("Sent resolv_gethostbyname\n"));
if (req == NULL) {
ret = ENOMEM;
}
if (ret == EOK) {
tevent_req_set_callback(req, test_negative, test_ctx);
ret = test_loop(test_ctx);
}
check_leaks_pop(test_ctx);
fail_unless(ret != EOK);
fail_unless(test_ctx->error == ARES_ENOTFOUND);
talloc_zfree(test_ctx);
}
END_TEST
static void test_internet(struct tevent_req *req)
{
int recv_status;
int status;
struct resolv_test_ctx *test_ctx;
void *tmp_ctx;
struct hostent *hostent = NULL;
struct ares_txt_reply *txt_replies = NULL, *txtptr;
struct ares_srv_reply *srv_replies = NULL, *srvptr;
test_ctx = tevent_req_callback_data(req, struct resolv_test_ctx);
test_ctx->done = true;
tmp_ctx = talloc_new(test_ctx);
check_leaks_push(tmp_ctx);
switch (test_ctx->tested_function) {
case TESTING_HOSTNAME:
recv_status = resolv_gethostbyname_recv(req, tmp_ctx,
&status, NULL, &hostent);
test_ctx->error = (hostent->h_length == 0) ? ENOENT : EOK;
break;
case TESTING_TXT:
recv_status = resolv_gettxt_recv(tmp_ctx, req, &status, NULL,
&txt_replies);
test_ctx->error = (txt_replies == NULL) ? ENOENT : EOK;
for (txtptr = txt_replies; txtptr != NULL; txtptr = txtptr->next) {
DEBUG(2, ("TXT Record: %s\n", txtptr->txt));
}
break;
case TESTING_SRV:
recv_status = resolv_getsrv_recv(tmp_ctx, req, &status, NULL,
&srv_replies);
test_ctx->error = (srv_replies == NULL) ? ENOENT : EOK;
for (srvptr = srv_replies; srvptr != NULL; srvptr = srvptr->next) {
DEBUG(2, ("SRV Record: %d %d %d %s\n", srvptr->weight,
srvptr->priority, srvptr->port,
srvptr->host));
}
break;
default:
recv_status = EINVAL;
break;
}
talloc_zfree(req);
fail_if(recv_status != EOK, "The recv function failed: %d", recv_status);
DEBUG(7, ("recv status: %d\n", status));
if (hostent != NULL) {
talloc_free(hostent);
} else if (txt_replies != NULL) {
talloc_free(txt_replies);
} else if (srv_replies != NULL) {
talloc_free(srv_replies);
}
check_leaks_pop(tmp_ctx);
}
START_TEST(test_resolv_internet)
{
int ret = EOK;
struct tevent_req *req;
const char *hostname = "redhat.com";
struct resolv_test_ctx *test_ctx;
ret = setup_resolv_test(&test_ctx);
if (ret != EOK) {
fail("Could not set up test");
return;
}
test_ctx->tested_function = TESTING_HOSTNAME;
check_leaks_push(test_ctx);
req = resolv_gethostbyname_send(test_ctx, test_ctx->ev,
test_ctx->resolv, hostname, IPV4_FIRST);
DEBUG(7, ("Sent resolv_gethostbyname\n"));
if (req == NULL) {
ret = ENOMEM;
}
if (ret == EOK) {
tevent_req_set_callback(req, test_internet, test_ctx);
ret = test_loop(test_ctx);
}
fail_unless(ret == EOK);
check_leaks_pop(test_ctx);
talloc_zfree(test_ctx);
}
END_TEST
START_TEST(test_resolv_internet_txt)
{
int ret;
struct tevent_req *req;
struct resolv_test_ctx *test_ctx;
ret = setup_resolv_test(&test_ctx);
fail_if(ret != EOK, "Could not set up test");
test_ctx->tested_function = TESTING_TXT;
check_leaks_push(test_ctx);
req = resolv_gettxt_send(test_ctx, test_ctx->ev, test_ctx->resolv, txt_host);
fail_if(req == NULL, "Function resolv_gettxt_send failed");
tevent_req_set_callback(req, test_internet, test_ctx);
ret = test_loop(test_ctx);
fail_unless(ret == EOK);
check_leaks_pop(test_ctx);
talloc_zfree(test_ctx);
}
END_TEST
START_TEST(test_resolv_internet_srv)
{
int ret;
struct tevent_req *req;
struct resolv_test_ctx *test_ctx;
ret = setup_resolv_test(&test_ctx);
fail_if(ret != EOK, "Could not set up test");
test_ctx->tested_function = TESTING_SRV;
check_leaks_push(test_ctx);
req = resolv_getsrv_send(test_ctx, test_ctx->ev, test_ctx->resolv, srv_host);
fail_if(req == NULL, "Function resolv_getsrv_send failed");
tevent_req_set_callback(req, test_internet, test_ctx);
ret = test_loop(test_ctx);
fail_unless(ret == EOK);
check_leaks_pop(test_ctx);
talloc_zfree(test_ctx);
}
END_TEST
static void resolv_free_context(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval t, void *ptr)
{
struct resolv_ctx *rctx = talloc_get_type(ptr, struct resolv_ctx);
DEBUG(7, ("freeing the context\n"));
talloc_free(rctx);
}
static void resolv_free_done(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval t, void *ptr)
{
struct resolv_test_ctx *tctx = talloc_get_type(ptr, struct resolv_test_ctx);
DEBUG(7, ("marking test as done\n"));
tctx->error = EOK;
tctx->done = true;
}
START_TEST(test_resolv_free_context)
{
int ret = EOK;
struct tevent_req *req;
const char *hostname = "redhat.com";
struct resolv_test_ctx *test_ctx;
struct tevent_timer *free_timer, *terminate_timer;
struct timeval free_tv, terminate_tv;
ret = setup_resolv_test(&test_ctx);
if (ret != EOK) {
fail("Could not set up test");
return;
}
req = resolv_gethostbyname_send(test_ctx, test_ctx->ev,
test_ctx->resolv, hostname, IPV4_FIRST);
DEBUG(7, ("Sent resolv_gethostbyname\n"));
if (req == NULL) {
fail("Error calling resolv_gethostbyname_send");
goto done;
}
gettimeofday(&free_tv, NULL);
free_tv.tv_sec += 1;
free_tv.tv_usec = 0;
terminate_tv.tv_sec = free_tv.tv_sec + 1;
terminate_tv.tv_usec = 0;
free_timer = tevent_add_timer(test_ctx->ev, test_ctx, free_tv, resolv_free_context, test_ctx->resolv);
if (free_timer == NULL) {
fail("Error calling tevent_add_timer");
goto done;
}
terminate_timer = tevent_add_timer(test_ctx->ev, test_ctx, terminate_tv, resolv_free_done, test_ctx);
if (terminate_timer == NULL) {
fail("Error calling tevent_add_timer");
goto done;
}
ret = test_loop(test_ctx);
fail_unless(ret == EOK);
done:
talloc_zfree(test_ctx);
}
END_TEST
static void resolv_free_req(struct tevent_context *ev,
struct tevent_timer *te,
struct timeval t, void *ptr)
{
struct tevent_req *req = talloc_get_type(ptr, struct tevent_req);
DEBUG(7, ("freeing the request\n"));
talloc_free(req);
}
START_TEST(test_resolv_free_req)
{
int ret = EOK;
struct tevent_req *req;
const char *hostname = "redhat.com";
struct resolv_test_ctx *test_ctx;
struct tevent_timer *free_timer, *terminate_timer;
struct timeval free_tv, terminate_tv;
ret = setup_resolv_test(&test_ctx);
if (ret != EOK) {
fail("Could not set up test");
return;
}
check_leaks_push(test_ctx);
req = resolv_gethostbyname_send(test_ctx, test_ctx->ev,
test_ctx->resolv, hostname, IPV4_FIRST);
DEBUG(7, ("Sent resolv_gethostbyname\n"));
if (req == NULL) {
fail("Error calling resolv_gethostbyname_send");
goto done;
}
gettimeofday(&free_tv, NULL);
free_tv.tv_sec += 1;
free_tv.tv_usec = 0;
terminate_tv.tv_sec = free_tv.tv_sec + 1;
terminate_tv.tv_usec = 0;
free_timer = tevent_add_timer(test_ctx->ev, test_ctx, free_tv, resolv_free_req, req);
if (free_timer == NULL) {
fail("Error calling tevent_add_timer");
goto done;
}
terminate_timer = tevent_add_timer(test_ctx->ev, test_ctx, terminate_tv, resolv_free_done, test_ctx);
if (terminate_timer == NULL) {
fail("Error calling tevent_add_timer");
goto done;
}
ret = test_loop(test_ctx);
check_leaks_pop(test_ctx);
fail_unless(ret == EOK);
done:
talloc_zfree(test_ctx);
}
END_TEST
Suite *create_resolv_suite(void)
{
Suite *s = suite_create("resolv");
TCase *tc_resolv = tcase_create("RESOLV Tests");
tcase_add_checked_fixture(tc_resolv, leak_check_setup, leak_check_teardown);
/* Do some testing */
tcase_add_test(tc_resolv, test_copy_hostent);
tcase_add_test(tc_resolv, test_resolv_localhost);
tcase_add_test(tc_resolv, test_resolv_negative);
if (use_net_test) {
tcase_add_test(tc_resolv, test_resolv_internet);
if (txt_host != NULL) {
tcase_add_test(tc_resolv, test_resolv_internet_txt);
}
if (srv_host != NULL) {
tcase_add_test(tc_resolv, test_resolv_internet_srv);
}
}
tcase_add_test(tc_resolv, test_resolv_free_context);
tcase_add_test(tc_resolv, test_resolv_free_req);
/* Add all test cases to the test suite */
suite_add_tcase(s, tc_resolv);
return s;
}
int main(int argc, const char *argv[])
{
int opt;
poptContext pc;
int failure_count;
Suite *resolv_suite;
SRunner *sr;
int debug = 0;
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "debug-level", 'd', POPT_ARG_INT, &debug, 0, "Set debug level", NULL },
{ "use-net-test", 'n', POPT_ARG_NONE, 0, 'n', "Run tests that need an active internet connection", NULL },
{ "txt-host", 't', POPT_ARG_STRING, 0, 't', "Specify the host used for TXT record testing", NULL },
{ "srv-host", 's', POPT_ARG_STRING, 0, 's', "Specify the host used for SRV record testing", NULL },
POPT_TABLEEND
};
pc = poptGetContext(argv[0], argc, argv, long_options, 0);
while((opt = poptGetNextOpt(pc)) != -1) {
switch(opt) {
case 'n':
use_net_test = 1;
break;
case 't':
txt_host = poptGetOptArg(pc);
break;
case 's':
srv_host = poptGetOptArg(pc);
break;
default:
fprintf(stderr, "\nInvalid option %s: %s\n\n",
poptBadOption(pc, 0), poptStrerror(opt));
poptPrintUsage(pc, stderr, 0);
return 1;
}
}
poptFreeContext(pc);
debug_level = debug;
tests_set_cwd();
resolv_suite = create_resolv_suite();
sr = srunner_create(resolv_suite);
/* If CK_VERBOSITY is set, use that, otherwise it defaults to CK_NORMAL */
srunner_run_all(sr, CK_ENV);
failure_count = srunner_ntests_failed(sr);
srunner_free(sr);
return (failure_count==0 ? EXIT_SUCCESS : EXIT_FAILURE);
}