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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2022 The Fluent Bit Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <fluent-bit/flb_input_plugin.h>
#include <fluent-bit/flb_config.h>
#include <fluent-bit/flb_config_map.h>
#include <fluent-bit/flb_error.h>
#include <fluent-bit/flb_pack.h>
#ifndef UNICODE
#define UNICODE
#endif
#include <lm.h>
#include <psapi.h>
#include <timezoneapi.h>
#include "we.h"
#include "we_os.h"
#include "we_util.h"
#include "we_metric.h"
int we_os_init(struct flb_we *ctx)
{
ctx->os = flb_calloc(1, sizeof(struct we_os_counters));
if (!ctx->os) {
flb_errno();
return -1;
}
ctx->os->operational = FLB_FALSE;
struct cmt_gauge *g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "info",
"Version information of OperatingSystem",
5, (char *[]) {"product", "version", "major_version", "minor_version", "build_number"});
if (!g) {
return -1;
}
ctx->os->info = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "physical_memory_free_bytes",
"Amount of free bytes of physical memory",
0, NULL);
if (!g) {
return -1;
}
ctx->os->physical_memory_free_bytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "time",
"Value of Local Time",
0, NULL);
if (!g) {
return -1;
}
ctx->os->time = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "timezone",
"Name of Local Timezone",
1, (char *[]) {"timezone"});
if (!g) {
return -1;
}
ctx->os->tz = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "virtual_memory_bytes",
"Total amount of bytes of virtual memory",
0, NULL);
if (!g) {
return -1;
}
ctx->os->virtual_memory_bytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "processes_limit",
"Number of processes limit",
0, NULL);
if (!g) {
return -1;
}
ctx->os->processes_limit = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "process_memory_limit_bytes",
"Limit of processes memory",
0, NULL);
if (!g) {
return -1;
}
ctx->os->process_memory_limit_bytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "processes",
"Number of processes",
0, NULL);
if (!g) {
return -1;
}
ctx->os->processes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "users",
"Number of users",
0, NULL);
if (!g) {
return -1;
}
ctx->os->users = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "visible_memory_bytes",
"Total amount of bytes of visibile memory",
0, NULL);
if (!g) {
return -1;
}
ctx->os->visible_memory_bytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "os", "virtual_memory_free_bytes",
"Amount of free bytes of virtual memory",
0, NULL);
if (!g) {
return -1;
}
ctx->os->virtual_memory_free_bytes = g;
ctx->os->operational = FLB_TRUE;
return 0;
}
int we_os_exit(struct flb_we *ctx)
{
flb_free(ctx->os);
return 0;
}
int we_os_update(struct flb_we *ctx)
{
DWORD level = 102;
LPWKSTA_INFO_102 wksta = NULL;
NET_API_STATUS status;
MEMORYSTATUSEX statex;
PERFORMANCE_INFORMATION perf;
DWORD size = 0;
char version[65] = {0}, major[32] = {0}, minor[32] = {0};
int users = 0;
LONG ret;
HKEY hkey;
char caption[80], build_number[32];
DWORD caption_len = sizeof(caption), build_len = sizeof(build_number);
uint64_t timestamp = 0;
char label_caption[90];
TIME_ZONE_INFORMATION tzi;
DWORD tztype = 0;
char *displaytz;
if (!ctx->os->operational) {
flb_plg_error(ctx->ins, "os collector not yet in operational state");
return -1;
}
timestamp = cfl_time_now();
ret = RegOpenKeyExA(HKEY_LOCAL_MACHINE, WE_OS_CURRENT_VERSION_PATH, 0, KEY_QUERY_VALUE, &hkey);
if (ret != ERROR_SUCCESS) {
return -1;
}
ret = RegQueryValueExA(hkey, "ProductName", NULL, NULL, (LPBYTE)caption, &caption_len);
if (ret != ERROR_SUCCESS) {
return -1;
}
ret = RegQueryValueExA(hkey, "CurrentBuildNumber", NULL, NULL, (LPBYTE)build_number, &build_len);
if (ret != ERROR_SUCCESS) {
return -1;
}
RegCloseKey(hkey);
status = NetWkstaGetInfo(NULL,
level,
(LPBYTE *)&wksta);
if (status == NERR_Success) {
snprintf(version, 65, "%d.%d", wksta->wki102_ver_major,
wksta->wki102_ver_minor);
snprintf(major, 32, "%d", wksta->wki102_ver_major);
snprintf(minor, 32, "%d", wksta->wki102_ver_minor);
snprintf(label_caption, 90, "Microsoft %s", caption);
users = wksta->wki102_logged_on_users;
cmt_gauge_set(ctx->os->info, timestamp, 1.0, 5,
(char *[]) { label_caption, version, major, minor, build_number});
cmt_gauge_set(ctx->os->users, timestamp, (double)users, 0, NULL);
}
else {
if (wksta != NULL) {
NetApiBufferFree(wksta);
}
flb_plg_error(ctx->ins, "A system error has occurred: %d\n", status);
return -1;
}
cmt_gauge_set(ctx->os->time, timestamp, (double)timestamp/1000000000L, 0, NULL);
tztype = GetTimeZoneInformation(&tzi);
switch (tztype) {
case TIME_ZONE_ID_STANDARD:
displaytz = we_convert_wstr(tzi.StandardName, CP_UTF8);
cmt_gauge_set(ctx->os->tz, timestamp, 1.0, 1, (char *[]) {displaytz});
flb_free(displaytz);
break;
case TIME_ZONE_ID_DAYLIGHT:
displaytz = we_convert_wstr(tzi.DaylightName, CP_UTF8);
cmt_gauge_set(ctx->os->tz, timestamp, 1.0, 1, (char *[]) {displaytz});
flb_free(displaytz);
break;
case TIME_ZONE_ID_UNKNOWN:
/* The current timezone does not use daylight saving time. */
displaytz = we_convert_wstr(tzi.StandardName, CP_UTF8);
cmt_gauge_set(ctx->os->tz, timestamp, 1.0, 1, (char *[]) {displaytz});
flb_free(displaytz);
break;
default:
flb_plg_error(ctx->ins, "Error to retrieve timezone information with status: %d", GetLastError());
}
statex.dwLength = sizeof (statex);
GlobalMemoryStatusEx(&statex);
size = sizeof(perf);
GetPerformanceInfo(&perf, size);
cmt_gauge_set(ctx->os->physical_memory_free_bytes, timestamp, (double)statex.ullAvailPhys, 0, NULL);
cmt_gauge_set(ctx->os->virtual_memory_free_bytes, timestamp, (double)statex.ullAvailPageFile, 0, NULL);
/* The result is from $(Get-WMIObject Win32_OperatingSystem).MaxNumberOfProcesses. */
cmt_gauge_set(ctx->os->processes_limit, timestamp, (double)4294967295, 0, NULL);
cmt_gauge_set(ctx->os->process_memory_limit_bytes, timestamp, (double)statex.ullTotalVirtual, 0, NULL);
cmt_gauge_set(ctx->os->processes, timestamp, (double)perf.ProcessCount, 0, NULL);
cmt_gauge_set(ctx->os->virtual_memory_bytes, timestamp, (double)statex.ullTotalPageFile, 0, NULL);
cmt_gauge_set(ctx->os->visible_memory_bytes, timestamp, (double)statex.ullTotalPhys, 0, NULL);
if (wksta != NULL) {
NetApiBufferFree(wksta);
}
return 0;
}
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