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/*
** Zabbix
** Copyright (C) 2001-2014 Zabbix SIA
**
** 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 2 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, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "sysinfo.h"
#include "symbols.h"
#include "log.h"
#define MAX_PROCESSES 4096
#define MAX_NAME 256
/* function 'zbx_get_processname' require 'baseName' with size 'MAX_NAME' */
static int zbx_get_processname(HANDLE hProcess, char *baseName)
{
HMODULE hMod;
DWORD dwSize;
wchar_t name[MAX_NAME];
if (0 == EnumProcessModules(hProcess, &hMod, sizeof(hMod), &dwSize))
return FAIL;
if (0 == GetModuleBaseName(hProcess, hMod, name, MAX_NAME))
return FAIL;
zbx_unicode_to_utf8_static(name, baseName, MAX_NAME);
return SUCCEED;
}
/* function 'zbx_get_process_username' require 'userName' with size 'MAX_NAME' */
static int zbx_get_process_username(HANDLE hProcess, char *userName)
{
HANDLE tok;
TOKEN_USER *ptu = NULL;
DWORD sz = 0, nlen, dlen;
wchar_t name[MAX_NAME], dom[MAX_NAME];
int iUse, res = FAIL;
assert(userName);
/* clean result; */
*userName = '\0';
/* open the processes token */
if (0 == OpenProcessToken(hProcess, TOKEN_QUERY, &tok))
return res;
/* Get required buffer size and allocate the TOKEN_USER buffer */
if (0 == GetTokenInformation(tok, (TOKEN_INFORMATION_CLASS)1, (LPVOID)ptu, 0, &sz))
{
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
goto lbl_err;
ptu = (PTOKEN_USER)zbx_malloc(ptu, sz);
}
/* Get the token user information from the access token. */
if (0 == GetTokenInformation(tok, (TOKEN_INFORMATION_CLASS)1, (LPVOID)ptu, sz, &sz))
goto lbl_err;
/* get the account/domain name of the SID */
nlen = MAX_NAME;
dlen = MAX_NAME;
if (0 == LookupAccountSid(NULL, ptu->User.Sid, name, &nlen, dom, &dlen, (PSID_NAME_USE)&iUse))
goto lbl_err;
zbx_unicode_to_utf8_static(name, userName, MAX_NAME);
res = SUCCEED;
lbl_err:
zbx_free(ptu);
CloseHandle(tok);
return res;
}
int PROC_NUM(AGENT_REQUEST *request, AGENT_RESULT *result)
{
HANDLE hProcess;
DWORD procList[MAX_PROCESSES], dwSize;
int i, proccount, max_proc_cnt,
proc_ok = 0,
user_ok = 0;
char *procName,
*userName,
baseName[MAX_PATH],
uname[MAX_NAME];
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
procName = get_rparam(request, 0);
userName = get_rparam(request, 1);
if (0 == EnumProcesses(procList, sizeof(DWORD) * MAX_PROCESSES, &dwSize))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain system information."));
return SYSINFO_RET_FAIL;
}
max_proc_cnt = dwSize / sizeof(DWORD);
proccount = 0;
for (i = 0; i < max_proc_cnt; i++)
{
proc_ok = 0;
user_ok = 0;
if (NULL != (hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, procList[i])))
{
if (NULL != procName && '\0' != *procName)
{
if (SUCCEED == zbx_get_processname(hProcess, baseName))
if (0 == stricmp(baseName, procName))
proc_ok = 1;
}
else
proc_ok = 1;
if (0 != proc_ok && NULL != userName && '\0' != *userName)
{
if (SUCCEED == zbx_get_process_username(hProcess, uname))
if (0 == stricmp(uname, userName))
user_ok = 1;
}
else
user_ok = 1;
if (0 != user_ok && 0 != proc_ok)
proccount++;
CloseHandle(hProcess);
}
}
SET_UI64_RESULT(result, proccount);
return SYSINFO_RET_OK;
}
/************ PROC INFO ****************/
/*
* Convert process time from FILETIME structure (100-nanosecond units) to double (milliseconds)
*/
static double ConvertProcessTime(FILETIME *lpft)
{
__int64 i;
memcpy(&i,lpft,sizeof(__int64));
i/=10000; /* Convert 100-nanosecond units to milliseconds */
return (double)i;
}
/*
* Get specific process attribute
*/
static int GetProcessAttribute(HANDLE hProcess,int attr,int type,int count,double *lastValue)
{
double value;
PROCESS_MEMORY_COUNTERS mc;
IO_COUNTERS ioCounters;
FILETIME ftCreate,ftExit,ftKernel,ftUser;
/* Get value for current process instance */
switch(attr)
{
case 0: /* vmsize */
GetProcessMemoryInfo(hProcess,&mc,sizeof(PROCESS_MEMORY_COUNTERS));
value=(double)mc.PagefileUsage/1024; /* Convert to Kbytes */
break;
case 1: /* wkset */
GetProcessMemoryInfo(hProcess,&mc,sizeof(PROCESS_MEMORY_COUNTERS));
value=(double)mc.WorkingSetSize/1024; /* Convert to Kbytes */
break;
case 2: /* pf */
GetProcessMemoryInfo(hProcess,&mc,sizeof(PROCESS_MEMORY_COUNTERS));
value=(double)mc.PageFaultCount;
break;
case 3: /* ktime */
case 4: /* utime */
GetProcessTimes(hProcess,&ftCreate,&ftExit,&ftKernel,&ftUser);
value = ConvertProcessTime(attr==3 ? &ftKernel : &ftUser);
break;
case 5: /* gdiobj */
case 6: /* userobj */
if(NULL == zbx_GetGuiResources)
return SYSINFO_RET_FAIL;
value = (double)zbx_GetGuiResources(hProcess,attr==5 ? 0 : 1);
break;
case 7: /* io_read_b */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.ReadTransferCount);
break;
case 8: /* io_read_op */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.ReadOperationCount);
break;
case 9: /* io_write_b */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.WriteTransferCount);
break;
case 10: /* io_write_op */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.WriteOperationCount);
break;
case 11: /* io_other_b */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.OtherTransferCount);
break;
case 12: /* io_other_op */
if(NULL == zbx_GetProcessIoCounters)
return SYSINFO_RET_FAIL;
zbx_GetProcessIoCounters(hProcess,&ioCounters);
value=(double)((__int64)ioCounters.OtherOperationCount);
break;
default: /* Unknown attribute */
return SYSINFO_RET_FAIL;
}
/* Recalculate final value according to selected type */
switch (type) {
case 0: /* min */
if (count == 0 || value < *lastValue)
*lastValue = value;
break;
case 1: /* max */
if (count == 0 || value > *lastValue)
*lastValue = value;
break;
case 2: /* avg */
*lastValue = (*lastValue * count + value) / (count + 1);
break;
case 3: /* sum */
*lastValue += value;
break;
default:
return SYSINFO_RET_FAIL;
}
return SYSINFO_RET_OK;
}
/*
* Get process-specific information
* Parameter has the following syntax:
* proc_info[<process>,<attribute>,<type>]
* where
* <process> - process name (same as in proc_cnt[] parameter)
* <attribute> - requested process attribute (see documentation for list of valid attributes)
* <type> - representation type (meaningful when more than one process with the same
* name exists). Valid values are:
* min - minimal value among all processes named <process>
* max - maximal value among all processes named <process>
* avg - average value for all processes named <process>
* sum - sum of values for all processes named <process>
*/
int PROC_INFO(AGENT_REQUEST *request, AGENT_RESULT *result)
{
DWORD *procList, dwSize;
HANDLE hProcess;
char *proc_name, *attr, *type, baseName[MAX_PATH];
const char *attrList[] = {"vmsize", "wkset", "pf", "ktime", "utime", "gdiobj", "userobj", "io_read_b", "io_read_op",
"io_write_b", "io_write_op", "io_other_b", "io_other_op", NULL},
*typeList[] = {"min", "max", "avg", "sum", NULL};
double value;
int i, proc_cnt, counter, attr_id, type_id, ret = SYSINFO_RET_OK;
if (3 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
proc_name = get_rparam(request, 0);
attr = get_rparam(request, 1);
type = get_rparam(request, 2);
if (NULL == proc_name || '\0' == *proc_name)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
return SYSINFO_RET_FAIL;
}
/* Get attribute code from string */
if (NULL == attr || '\0' == *attr)
{
for (attr_id = 0; NULL != attrList[attr_id] && 0 != strcmp(attrList[attr_id], "vmsize"); attr_id++)
;
}
else
{
for (attr_id = 0; NULL != attrList[attr_id] && 0 != strcmp(attrList[attr_id], attr); attr_id++)
;
}
if (NULL == attrList[attr_id]) /* Unsupported attribute */
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
/* Get type code from string */
if (NULL == type || '\0' == *type)
{
for (type_id = 0; NULL != typeList[type_id] && 0 != strcmp(typeList[type_id], "avg"); type_id++)
;
}
else
{
for (type_id = 0; NULL != typeList[type_id] && 0 != strcmp(typeList[type_id], type); type_id++)
;
}
if (NULL == typeList[type_id]) /* Unsupported type */
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid third parameter."));
return SYSINFO_RET_FAIL;
}
procList = (DWORD *)malloc(MAX_PROCESSES * sizeof(DWORD));
if (0 == EnumProcesses(procList, sizeof(DWORD) * MAX_PROCESSES, &dwSize))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain system information."));
return SYSINFO_RET_FAIL;
}
proc_cnt = dwSize / sizeof(DWORD);
counter = 0;
value = 0;
for (i = 0; i < proc_cnt; i++)
{
if (NULL != (hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,FALSE, procList[i])))
{
if (SUCCEED == zbx_get_processname(hProcess, baseName))
if (0 == stricmp(baseName, proc_name))
if (SYSINFO_RET_OK != (ret = GetProcessAttribute(hProcess, attr_id, type_id, counter++, &value)))
break;
CloseHandle(hProcess);
}
}
free(procList);
if (SYSINFO_RET_OK == ret)
SET_DBL_RESULT(result, value);
else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain process information."));
return ret;
}
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