Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zbxsysinc.h"

​

#include <comdef.h>

#include <Wbemidl.h>

​

extern "C"

{

#   include "../sysinfo.h"

#   include "zbxstr.h"

#   include "zbxlog.h"

#   include "zbxalgo.h"

#   include "zbxjson.h"

}

​

#pragma comment(lib, "wbemuuid.lib")

​

typedef struct

{

    BSTR    name;

    VARIANT *value;

}

zbx_wmi_prop_t;

​

ZBX_VECTOR_DECL(wmi_prop, zbx_wmi_prop_t)

ZBX_VECTOR_IMPL(wmi_prop, zbx_wmi_prop_t)

​

ZBX_PTR_VECTOR_DECL(wmi_instance, zbx_vector_wmi_prop_t *)

ZBX_PTR_VECTOR_IMPL(wmi_instance, zbx_vector_wmi_prop_t *)

​

extern "C" static void  wmi_prop_clear(zbx_wmi_prop_t *prop)

{

    SysFreeString(prop->name);

    VariantClear(prop->value);

    zbx_free(prop->value);

}

​

extern "C" static void  wmi_instance_clear(zbx_vector_wmi_prop_t *wmi_inst_value)

{

    for (int i = 0; i < wmi_inst_value->values_num; i++)

        wmi_prop_clear(&wmi_inst_value->values[i]);

​

    zbx_vector_wmi_prop_destroy(wmi_inst_value);

    zbx_free(wmi_inst_value);

}

​

typedef int (*zbx_parse_wmi_t)(IEnumWbemClassObject *pEnumerator, double timeout,

        zbx_vector_wmi_instance_t *wmi_values, char **error);

​

extern "C" int  put_variant_json(const char *prop_json, const char *prop_err, VARIANT *vtProp, struct zbx_json *jdoc,

        char **error);

​

static ZBX_THREAD_LOCAL int com_initialized = 0;

​

extern "C" int  zbx_co_initialize()

{

    if (0 == com_initialized)

    {

        HRESULT hres;

​

        /* must be called once per each thread */

        hres = CoInitializeEx(0, COINIT_MULTITHREADED);

​

        if (FAILED(hres))

        {

            zabbix_log(LOG_LEVEL_DEBUG, "cannot initialized COM library");

            return FAIL;

        }

​

        /* must be called once per process, subsequent calls return RPC_E_TOO_LATE */

        hres = CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_DEFAULT,

                RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL);

​

        if (FAILED(hres) && RPC_E_TOO_LATE != hres)

        {

            zabbix_log(LOG_LEVEL_DEBUG, "cannot set default security levels for COM library");

            CoUninitialize();

            return FAIL;