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/*
** Zabbix
** Copyright (C) 2001-2022 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 "zbxregexp.h"
static int check_procstate(struct procentry64 *procentry, int zbx_proc_stat)
{
if (ZBX_PROC_STAT_ALL == zbx_proc_stat)
return SUCCEED;
switch (zbx_proc_stat)
{
case ZBX_PROC_STAT_RUN:
return SACTIVE == procentry->pi_state && 0 != procentry->pi_cpu ? SUCCEED : FAIL;
case ZBX_PROC_STAT_SLEEP:
return SACTIVE == procentry->pi_state && 0 == procentry->pi_cpu ? SUCCEED : FAIL;
case ZBX_PROC_STAT_ZOMB:
return SZOMB == procentry->pi_state ? SUCCEED : FAIL;
}
return FAIL;
}
static int check_procargs(struct procentry64 *procentry, const char *proccomm)
{
int i;
char procargs[MAX_BUFFER_LEN];
if (0 != getargs(procentry, (int)sizeof(*procentry), procargs, (int)sizeof(procargs)))
return FAIL;
for (i = 0; i < sizeof(procargs) - 1; i++)
{
if ('\0' == procargs[i])
{
if ('\0' == procargs[i + 1])
break;
procargs[i] = ' ';
}
}
if (i == sizeof(procargs) - 1)
procargs[i] = '\0';
return NULL != zbx_regexp_match(procargs, proccomm, NULL) ? SUCCEED : FAIL;
}
int PROC_MEM(AGENT_REQUEST *request, AGENT_RESULT *result)
{
#define ZBX_VSIZE 0
#define ZBX_RSS 1
#define ZBX_PMEM 2
#define ZBX_SIZE 3
#define ZBX_DSIZE 4
#define ZBX_TSIZE 5
#define ZBX_SDSIZE 6
#define ZBX_DRSS 7
#define ZBX_TRSS 8
/* The pi_???_l2psize fields are described as: log2 of a proc's ??? pg sz */
/* Basically it's bits per page, so define 12 bits (4kb) for earlier AIX */
/* versions that do not support those fields. */
#ifdef _AIX61
# define ZBX_L2PSIZE(field) field
#else
# define ZBX_L2PSIZE(field) 12
#endif
char *param, *procname, *proccomm, *mem_type = NULL;
struct passwd *usrinfo;
struct procentry64 procentry;
pid_t pid = 0;
int do_task, mem_type_code, proccount = 0, invalid_user = 0;
zbx_uint64_t mem_size = 0, byte_value = 0;
double pct_size = 0.0, pct_value = 0.0;
if (5 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
procname = get_rparam(request, 0);
param = get_rparam(request, 1);
if (NULL != param && '\0' != *param)
{
if (NULL == (usrinfo = getpwnam(param)))
invalid_user = 1;
}
else
usrinfo = NULL;
param = get_rparam(request, 2);
if (NULL == param || '\0' == *param || 0 == strcmp(param, "sum"))
do_task = ZBX_DO_SUM;
else if (0 == strcmp(param, "avg"))
do_task = ZBX_DO_AVG;
else if (0 == strcmp(param, "max"))
do_task = ZBX_DO_MAX;
else if (0 == strcmp(param, "min"))
do_task = ZBX_DO_MIN;
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid third parameter."));
return SYSINFO_RET_FAIL;
}
proccomm = get_rparam(request, 3);
mem_type = get_rparam(request, 4);
if (NULL == mem_type || '\0' == *mem_type || 0 == strcmp(mem_type, "vsize"))
{
mem_type_code = ZBX_VSIZE; /* virtual memory size */
}
else if (0 == strcmp(mem_type, "rss"))
{
mem_type_code = ZBX_RSS; /* resident set size */
}
else if (0 == strcmp(mem_type, "pmem"))
{
mem_type_code = ZBX_PMEM; /* percentage of real memory used by process */
}
else if (0 == strcmp(mem_type, "size"))
{
mem_type_code = ZBX_SIZE; /* size of process (code + data) */
}
else if (0 == strcmp(mem_type, "dsize"))
{
mem_type_code = ZBX_DSIZE; /* data size */
}
else if (0 == strcmp(mem_type, "tsize"))
{
mem_type_code = ZBX_TSIZE; /* text size */
}
else if (0 == strcmp(mem_type, "sdsize"))
{
mem_type_code = ZBX_SDSIZE; /* data size from shared library */
}
else if (0 == strcmp(mem_type, "drss"))
{
mem_type_code = ZBX_DRSS; /* data resident set size */
}
else if (0 == strcmp(mem_type, "trss"))
{
mem_type_code = ZBX_TRSS; /* text resident set size */
}
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid fifth parameter."));
return SYSINFO_RET_FAIL;
}
if (1 == invalid_user) /* handle 0 for non-existent user after all parameters have been parsed and validated */
goto out;
while (0 < getprocs64(&procentry, (int)sizeof(struct procentry64), NULL, 0, &pid, 1))
{
if (NULL != procname && '\0' != *procname && 0 != strcmp(procname, procentry.pi_comm))
continue;
if (NULL != usrinfo && usrinfo->pw_uid != procentry.pi_uid)
continue;
if (NULL != proccomm && '\0' != *proccomm && SUCCEED != check_procargs(&procentry, proccomm))
continue;
switch (mem_type_code)
{
case ZBX_VSIZE:
/* historically default proc.mem[] on AIX */
byte_value = (zbx_uint64_t)procentry.pi_size << 12; /* number of pages to bytes */
break;
case ZBX_RSS:
/* try to be compatible with "ps -o rssize" */
byte_value = ((zbx_uint64_t)procentry.pi_drss << ZBX_L2PSIZE(procentry.pi_data_l2psize)) +
((zbx_uint64_t)procentry.pi_trss << ZBX_L2PSIZE(procentry.pi_text_l2psize));
break;
case ZBX_PMEM:
/* try to be compatible with "ps -o pmem" */
pct_value = procentry.pi_prm;
break;
case ZBX_SIZE:
/* try to be compatible with "ps gvw" SIZE column */
byte_value = (zbx_uint64_t)procentry.pi_dvm << ZBX_L2PSIZE(procentry.pi_data_l2psize);
break;
case ZBX_DSIZE:
byte_value = procentry.pi_dsize;
break;
case ZBX_TSIZE:
/* try to be compatible with "ps gvw" TSIZ column */
byte_value = procentry.pi_tsize;
break;
case ZBX_SDSIZE:
byte_value = procentry.pi_sdsize;
break;
case ZBX_DRSS:
byte_value = (zbx_uint64_t)procentry.pi_drss << ZBX_L2PSIZE(procentry.pi_data_l2psize);
break;
case ZBX_TRSS:
byte_value = (zbx_uint64_t)procentry.pi_trss << ZBX_L2PSIZE(procentry.pi_text_l2psize);
break;
}
if (ZBX_PMEM != mem_type_code)
{
if (0 != proccount++)
{
if (ZBX_DO_MAX == do_task)
mem_size = MAX(mem_size, byte_value);
else if (ZBX_DO_MIN == do_task)
mem_size = MIN(mem_size, byte_value);
else
mem_size += byte_value;
}
else
mem_size = byte_value;
}
else
{
if (0 != proccount++)
{
if (ZBX_DO_MAX == do_task)
pct_size = MAX(pct_size, pct_value);
else if (ZBX_DO_MIN == do_task)
pct_size = MIN(pct_size, pct_value);
else
pct_size += pct_value;
}
else
pct_size = pct_value;
}
}
out:
if (ZBX_PMEM != mem_type_code)
{
if (ZBX_DO_AVG == do_task)
SET_DBL_RESULT(result, 0 == proccount ? 0.0 : (double)mem_size / (double)proccount);
else
SET_UI64_RESULT(result, mem_size);
}
else
{
if (ZBX_DO_AVG == do_task)
SET_DBL_RESULT(result, 0 == proccount ? 0.0 : pct_size / (double)proccount);
else
SET_DBL_RESULT(result, pct_size);
}
return SYSINFO_RET_OK;
#undef ZBX_L2PSIZE
#undef ZBX_SIZE
#undef ZBX_RSS
#undef ZBX_VSIZE
#undef ZBX_PMEM
#undef ZBX_TSIZE
#undef ZBX_DSIZE
#undef ZBX_SDSIZE
#undef ZBX_DRSS
#undef ZBX_TRSS
}
int PROC_NUM(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *param, *procname, *proccomm;
struct passwd *usrinfo;
struct procentry64 procentry;
pid_t pid = 0;
int proccount = 0, invalid_user = 0, zbx_proc_stat;
if (4 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
procname = get_rparam(request, 0);
param = get_rparam(request, 1);
if (NULL != param && '\0' != *param)
{
if (NULL == (usrinfo = getpwnam(param)))
invalid_user = 1;
}
else
usrinfo = NULL;
param = get_rparam(request, 2);
if (NULL == param || '\0' == *param || 0 == strcmp(param, "all"))
zbx_proc_stat = ZBX_PROC_STAT_ALL;
else if (0 == strcmp(param, "run"))
zbx_proc_stat = ZBX_PROC_STAT_RUN;
else if (0 == strcmp(param, "sleep"))
zbx_proc_stat = ZBX_PROC_STAT_SLEEP;
else if (0 == strcmp(param, "zomb"))
zbx_proc_stat = ZBX_PROC_STAT_ZOMB;
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid third parameter."));
return SYSINFO_RET_FAIL;
}
proccomm = get_rparam(request, 3);
if (1 == invalid_user) /* handle 0 for non-existent user after all parameters have been parsed and validated */
goto out;
while (0 < getprocs64(&procentry, (int)sizeof(struct procentry64), NULL, 0, &pid, 1))
{
if (NULL != procname && '\0' != *procname && 0 != strcmp(procname, procentry.pi_comm))
continue;
if (NULL != usrinfo && usrinfo->pw_uid != procentry.pi_uid)
continue;
if (SUCCEED != check_procstate(&procentry, zbx_proc_stat))
continue;
if (NULL != proccomm && '\0' != *proccomm && SUCCEED != check_procargs(&procentry, proccomm))
continue;
proccount++;
}
out:
SET_UI64_RESULT(result, proccount);
return SYSINFO_RET_OK;
}
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