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/*
Unit tests for the dsdb group auditing code in group_audit.c
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
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/>.
*/
/*
* These tests exercise the error handling routines.
*/
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <unistd.h>
#include <cmocka.h>
int ldb_group_audit_log_module_init(const char *version);
#include "../group_audit.c"
#include "lib/ldb/include/ldb_private.h"
/*
* cmocka wrappers for json_new_object
*/
struct json_object __wrap_json_new_object(void);
struct json_object __real_json_new_object(void);
struct json_object __wrap_json_new_object(void)
{
bool use_real = (bool)mock();
if (!use_real) {
return json_empty_object;
}
return __real_json_new_object();
}
/*
* cmocka wrappers for json_add_version
*/
int __wrap_json_add_version(struct json_object *object, int major, int minor);
int __real_json_add_version(struct json_object *object, int major, int minor);
int __wrap_json_add_version(struct json_object *object, int major, int minor)
{
int ret = (int)mock();
if (ret) {
return ret;
}
return __real_json_add_version(object, major, minor);
}
/*
* cmocka wrappers for json_add_version
*/
int __wrap_json_add_timestamp(struct json_object *object);
int __real_json_add_timestamp(struct json_object *object);
int __wrap_json_add_timestamp(struct json_object *object)
{
int ret = (int)mock();
if (ret) {
return ret;
}
return __real_json_add_timestamp(object);
}
/*
* Test helper to add a session id and user SID
*/
static void add_session_data(
TALLOC_CTX *ctx,
struct ldb_context *ldb,
const char *session,
const char *user_sid)
{
struct auth_session_info *sess = NULL;
struct security_token *token = NULL;
struct dom_sid *sid = NULL;
struct GUID session_id;
bool ok;
sess = talloc_zero(ctx, struct auth_session_info);
token = talloc_zero(ctx, struct security_token);
sid = talloc_zero(ctx, struct dom_sid);
ok = string_to_sid(sid, user_sid);
assert_true(ok);
token->sids = sid;
sess->security_token = token;
GUID_from_string(session, &session_id);
sess->unique_session_token = session_id;
ldb_set_opaque(ldb, DSDB_SESSION_INFO, sess);
}
/*
* Test helper to insert a transaction_id into a request.
*/
static void add_transaction_id(struct ldb_request *req, const char *id)
{
struct GUID guid;
struct dsdb_control_transaction_identifier *transaction_id = NULL;
transaction_id = talloc_zero(
req,
struct dsdb_control_transaction_identifier);
assert_non_null(transaction_id);
GUID_from_string(id, &guid);
transaction_id->transaction_guid = guid;
ldb_request_add_control(
req,
DSDB_CONTROL_TRANSACTION_IDENTIFIER_OID,
false,
transaction_id);
}
static void test_audit_group_json(void **state)
{
struct ldb_context *ldb = NULL;
struct ldb_module *module = NULL;
struct ldb_request *req = NULL;
struct tsocket_address *ts = NULL;
const char *const SID = "S-1-5-21-2470180966-3899876309-2637894779";
const char * const SESSION = "7130cb06-2062-6a1b-409e-3514c26b1773";
struct GUID transaction_id;
const char *const TRANSACTION = "7130cb06-2062-6a1b-409e-3514c26b1773";
enum event_id_type event_id = EVT_ID_USER_REMOVED_FROM_GLOBAL_SEC_GROUP;
struct json_object json;
TALLOC_CTX *ctx = talloc_new(NULL);
ldb = ldb_init(ctx, NULL);
GUID_from_string(TRANSACTION, &transaction_id);
module = talloc_zero(ctx, struct ldb_module);
module->ldb = ldb;
tsocket_address_inet_from_strings(ctx, "ip", "127.0.0.1", 0, &ts);
ldb_set_opaque(ldb, "remoteAddress", ts);
add_session_data(ctx, ldb, SESSION, SID);
req = talloc_zero(ctx, struct ldb_request);
req->operation = LDB_ADD;
add_transaction_id(req, TRANSACTION);
/*
* Fail on the creation of the audit json object
*/
will_return(__wrap_json_new_object, false);
json = audit_group_json(module,
req,
"the-action",
"the-user-name",
"the-group-name",
event_id,
LDB_ERR_OPERATIONS_ERROR);
assert_true(json_is_invalid(&json));
/*
* Fail adding the version object .
*/
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_version, JSON_ERROR);
json = audit_group_json(module,
req,
"the-action",
"the-user-name",
"the-group-name",
event_id,
LDB_ERR_OPERATIONS_ERROR);
assert_true(json_is_invalid(&json));
/*
* Fail on creation of the wrapper.
*/
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_version, 0);
will_return(__wrap_json_new_object, false);
json = audit_group_json(module,
req,
"the-action",
"the-user-name",
"the-group-name",
event_id,
LDB_ERR_OPERATIONS_ERROR);
assert_true(json_is_invalid(&json));
/*
* Fail adding the timestamp to the wrapper object.
*/
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_version, 0);
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_timestamp, JSON_ERROR);
json = audit_group_json(module,
req,
"the-action",
"the-user-name",
"the-group-name",
event_id,
LDB_ERR_OPERATIONS_ERROR);
assert_true(json_is_invalid(&json));
/*
* Now test the happy path
*/
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_version, 0);
will_return(__wrap_json_new_object, true);
will_return(__wrap_json_add_timestamp, 0);
json = audit_group_json(module,
req,
"the-action",
"the-user-name",
"the-group-name",
event_id,
LDB_ERR_OPERATIONS_ERROR);
assert_false(json_is_invalid(&json));
json_free(&json);
TALLOC_FREE(ctx);
}
/*
* Note: to run under valgrind us:
* valgrind --suppressions=test_group_audit.valgrind bin/test_group_audit
* This suppresses the errors generated because the ldb_modules are not
* de-registered.
*
*/
int main(void) {
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_audit_group_json),
};
cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
return cmocka_run_group_tests(tests, NULL, NULL);
}
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