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system_monitoring.cpp
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system_monitoring.cpp
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/*
Released under Public Domain, Jozsef Oszlanczi, 2009
*/
#include "system_monitoring.h"
#define monsetTableDataN(ANAME,AVALUE) lua_pushstring(l,ANAME); \
lua_pushnumber(l,AVALUE); \
lua_settable(l,-3)
#define monsetTableDataS(ANAME,AVALUE) lua_pushstring(l,ANAME); \
lua_pushstring(l,(const char*) AVALUE); \
lua_settable(l,-3)
#define monsetTableDataLI(ANAME,AVALUE) lua_pushstring(l,ANAME); \
sprintf(todouble,"%llu",AVALUE); \
lua_pushstring(l,todouble); \
lua_settable(l,-3)
double boot_time()
{
double uptime;
time_t pt;
FILETIME fileTime;
long long ll;
GetSystemTimeAsFileTime(&fileTime);
ll = (((LONGLONG)(fileTime.dwHighDateTime)) << 32) \
+ fileTime.dwLowDateTime;
pt = (time_t)((ll - 116444736000000000ull) / 10000000ull);
uptime = GetTickCount() / 1000.00f;
return (double)pt - uptime;
}
/******************************************************************************/
// Get Boot time
// Parameters -
// Result - number, seconds
/********************************************************************************/
static int monitoring_boot_time(lua_State *l)
{
lua_pushnumber(l, (double)boot_time());
return 1;
}
int cpu_count_logical()
{
SYSTEM_INFO system_info;
system_info.dwNumberOfProcessors = 0;
GetSystemInfo(&system_info);
if (system_info.dwNumberOfProcessors == 0) {
return 0;
}
else {
return system_info.dwNumberOfProcessors;
}
}
/******************************************************************************/
// Get logical cpu count
// Parameters -
// Result - number
/********************************************************************************/
static int monitoring_cpu_count_logical(lua_State *l)
{
lua_pushinteger(l, cpu_count_logical());
return 1;
}
typedef BOOL (WINAPI *LPFN_GLPI) (PSYSTEM_LOGICAL_PROCESSOR_INFORMATION,PDWORD);
int cpu_count_phys()
{
LPFN_GLPI glpi;
DWORD rc;
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION buffer = NULL;
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION ptr = NULL;
DWORD length = 0;
DWORD offset = 0;
int ncpus = 0;
glpi = (LPFN_GLPI)GetProcAddress(GetModuleHandle(TEXT("kernel32")),
"GetLogicalProcessorInformation");
if (glpi == NULL)
goto return_none;
while (1) {
rc = glpi(buffer, &length);
if (rc == FALSE) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
if (buffer)
free(buffer);
buffer = (PSYSTEM_LOGICAL_PROCESSOR_INFORMATION)malloc(
length);
if (NULL == buffer) {
return 0;
}
}
else {
goto return_none;
}
}
else {
break;
}
}
ptr = buffer;
while (offset + sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION) <= length) {
if (ptr->Relationship == RelationProcessorCore)
ncpus += 1;
offset += sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
ptr++;
}
free(buffer);
if (ncpus == 0)
goto return_none;
else
{
return ncpus;
}
return_none:
if (buffer != NULL)
free(buffer);
return 0;
}
/******************************************************************************/
// Get physical cpu count
// Parameters -
// Result - number
/********************************************************************************/
static int monitoring_cpu_count_phys(lua_State *l)
{
lua_pushinteger(l, cpu_count_phys());
return 1;
}
#define LO_T ((float)1e-7)
#define HI_T (LO_T*4294967296.0)
void cpu_times(long pid,float& aidle, float& auser, float& akernel)
{
float idle, kernel, user, system = 0;
FILETIME idle_time, kernel_time, user_time;
if (!GetSystemTimes(&idle_time, &kernel_time, &user_time)) {
idle = 0;
user = 0;
system = 0;
return;
}
idle = (float)((HI_T * idle_time.dwHighDateTime) + \
(LO_T * idle_time.dwLowDateTime));
user = (float)((HI_T * user_time.dwHighDateTime) + \
(LO_T * user_time.dwLowDateTime));
kernel = (float)((HI_T * kernel_time.dwHighDateTime) + \
(LO_T * kernel_time.dwLowDateTime));
// Kernel time includes idle time.
// We return only busy kernel time subtracting idle time from
// kernel time.
system = (kernel - idle);
aidle = idle;
auser = user;
akernel = kernel;
}
/******************************************************************************/
// Get cpu times
// Parameters -
// Result - number
// Retrieves system CPU timing information as a (user, system, idle)
// tuple. On a multiprocessor system, the values returned are the
// sum of the designated times across all processors.
/********************************************************************************/
static int
monitoring_cpu_times(lua_State *l)
{
float idle, user, system = 0;
cpu_times(0,idle,user,system);
lua_pushnumber(l,user);
lua_pushnumber(l,system);
lua_pushnumber(l,idle);
return 3;
}
typedef struct _DISK_PERFORMANCE_WIN_2008 {
LARGE_INTEGER BytesRead;
LARGE_INTEGER BytesWritten;
LARGE_INTEGER ReadTime;
LARGE_INTEGER WriteTime;
LARGE_INTEGER IdleTime;
DWORD ReadCount;
DWORD WriteCount;
DWORD QueueDepth;
DWORD SplitCount;
LARGE_INTEGER QueryTime;
DWORD StorageDeviceNumber;
WCHAR StorageManagerName[8];
} DISK_PERFORMANCE_WIN_2008;
/******************************************************************************/
// Get disk io information
// Parameters - drive number 0-32
// Return table with hash code
/********************************************************************************/
/******************************************************************************/
// Get disk io information
// Parameters -
// Return
/********************************************************************************/
static int
monitoring_disk_io_counters(lua_State *l)
{
DISK_PERFORMANCE_WIN_2008 diskPerformance;
DWORD dwSize;
HANDLE hDevice = NULL;
char szDevice[MAX_PATH];
char szDeviceDisplay[MAX_PATH];
char todouble[32];
int devNum = luaL_checkint(l,-1);
if (devNum < 0 || devNum >32) {
lua_pushnil(l);
return 1;
}
sprintf(szDevice, "\\\\.\\PhysicalDrive%d", devNum);
hDevice = CreateFile(szDevice, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (hDevice == INVALID_HANDLE_VALUE)
{
lua_pushnil(l);
return 1;
}
if (DeviceIoControl(hDevice, IOCTL_DISK_PERFORMANCE, NULL, 0,&diskPerformance, sizeof(diskPerformance),&dwSize, NULL))
{
sprintf(szDeviceDisplay, "PhysicalDrive%d", devNum);
lua_createtable(l,0,7);
monsetTableDataS("Device",szDeviceDisplay);
monsetTableDataN("ReadCount",diskPerformance.ReadCount);
monsetTableDataN("WriteCount",diskPerformance.WriteCount);
monsetTableDataLI("BytesRead",diskPerformance.BytesRead);
monsetTableDataLI("BytesWritten",diskPerformance.BytesWritten);
monsetTableDataLI("ReadTime",(diskPerformance.ReadTime.QuadPart * 10) / 1000);
monsetTableDataLI("WriteTime",(diskPerformance.WriteTime.QuadPart * 10) / 1000);
if (hDevice != NULL)
CloseHandle(hDevice);
return 1;
};
if (hDevice != NULL)
CloseHandle(hDevice);
lua_pushnil(l);
return 1;
}
#ifndef _ARRAYSIZE
#define _ARRAYSIZE(a) (sizeof(a)/sizeof(a[0]))
#endif
static char *monitoring_get_drive_type(int type)
{
switch (type) {
case DRIVE_FIXED:
return "fixed";
case DRIVE_CDROM:
return "cdrom";
case DRIVE_REMOVABLE:
return "removable";
case DRIVE_UNKNOWN:
return "unknown";
case DRIVE_NO_ROOT_DIR:
return "unmounted";
case DRIVE_REMOTE:
return "remote";
case DRIVE_RAMDISK:
return "ramdisk";
default:
return "?";
}
}
/******************************************************************************/
// Get disk partitions
// Parameters - all?
// Return table with partition parameters
/********************************************************************************/
static int
monitoring_disk_partitions(lua_State *l)
{
DWORD num_bytes;
char drive_strings[255];
char *drive_letter = drive_strings;
int all = lua_toboolean(l,-1);
int type;
int ret;
char opts[50];
LPTSTR fs_type[MAX_PATH + 1] = { 0 };
DWORD pflags = 0;
SetErrorMode(SEM_FAILCRITICALERRORS);
num_bytes = GetLogicalDriveStrings(254, drive_letter);
if (num_bytes == 0) {
lua_pushnil(l);
return 1;
}
lua_newtable(l);
while (*drive_letter != 0) {
opts[0] = 0;
fs_type[0] = 0;
type = GetDriveType(drive_letter);
// by default we only show hard drives and cd-roms
if (all == 0) {
if ((type == DRIVE_UNKNOWN) ||
(type == DRIVE_NO_ROOT_DIR) ||
(type == DRIVE_REMOTE) ||
(type == DRIVE_RAMDISK)) {
goto next;
}
// floppy disk: skip it by default as it introduces a
// considerable slowdown.
if ((type == DRIVE_REMOVABLE) &&
(strcmp(drive_letter, "A:\\") == 0)) {
goto next;
}
}
ret = GetVolumeInformation( (LPCTSTR)drive_letter, NULL, _ARRAYSIZE(drive_letter), NULL, NULL, &pflags, (LPTSTR)fs_type, _ARRAYSIZE(fs_type));
if (ret == 0) {
// We might get here in case of a floppy hard drive, in
// which case the error is (21, "device not ready").
// Let's pretend it didn't happen as we already have
// the drive name and type ('removable').
strcat(opts, "");
SetLastError(0);
}
else {
if (pflags & FILE_READ_ONLY_VOLUME) {
strcat(opts, "ro");
}
else {
strcat(opts, "rw");
}
if (pflags & FILE_VOLUME_IS_COMPRESSED) {
strcat(opts, ",compressed");
}
}
if (strlen(opts) > 0) {
strcat(opts, ",");
}
strcat(opts, monitoring_get_drive_type(type));
monsetTableDataS(drive_letter,opts);
goto next;
next:
drive_letter = strchr(drive_letter, 0) + 1;
}
SetErrorMode(0);
return 1;
}
/******************************************************************************/
// Get disk usage
// Parameters - string path
// Return table with partition parameters
/********************************************************************************/
static int monitoring_disk_usage(lua_State *l)
{
BOOL retval;
ULARGE_INTEGER allforu, total, free;
std::string path = luaL_checkstring(l,-1);
char todouble[32];
retval = GetDiskFreeSpaceExA((LPCSTR)path.c_str(), &allforu, &total, &free);
if (retval) {
sprintf(todouble,"%llu",allforu);
lua_pushstring(l,todouble);
sprintf(todouble,"%llu",total);
lua_pushstring(l,todouble);
sprintf(todouble,"%llu",free);
lua_pushstring(l,todouble);
}
else
{
lua_pushnil(l);
lua_pushnil(l);
lua_pushnil(l);
}
return 3;
}
/******************************************************************************/
// Check selected process is running
// Parameters - process id
// Return -1 - 1
/********************************************************************************/
int
monitoring_pid_is_running(DWORD pid)
{
HANDLE hProcess;
DWORD exitCode;
// Special case for PID 0 System Idle Process
if (pid == 0) {
return 1;
}
if (pid < 0) {
return 0;
}
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
FALSE, pid);
if (NULL == hProcess) {
// invalid parameter is no such process
if (GetLastError() == ERROR_INVALID_PARAMETER) {
CloseHandle(hProcess);
return 0;
}
// access denied obviously means there's a process to deny access to...
if (GetLastError() == ERROR_ACCESS_DENIED) {
CloseHandle(hProcess);
return 1;
}
CloseHandle(hProcess);
return -1;
}
if (GetExitCodeProcess(hProcess, &exitCode)) {
CloseHandle(hProcess);
return (exitCode == STILL_ACTIVE);
}
// access denied means there's a process there so we'll assume
// it's running
if (GetLastError() == ERROR_ACCESS_DENIED) {
CloseHandle(hProcess);
return 1;
}
CloseHandle(hProcess);
return -1;
}
/******************************************************************************/
// Return a list of network connections opened by a process
// Parameters -
// Return host,port
/********************************************************************************/
#ifndef _IPRTRMIB_H
typedef struct _MIB_TCP6ROW_OWNER_PID {
UCHAR ucLocalAddr[16];
DWORD dwLocalScopeId;
DWORD dwLocalPort;
UCHAR ucRemoteAddr[16];
DWORD dwRemoteScopeId;
DWORD dwRemotePort;
DWORD dwState;
DWORD dwOwningPid;
} MIB_TCP6ROW_OWNER_PID, *PMIB_TCP6ROW_OWNER_PID;
typedef struct _MIB_TCP6TABLE_OWNER_PID {
DWORD dwNumEntries;
MIB_TCP6ROW_OWNER_PID table[ANY_SIZE];
} MIB_TCP6TABLE_OWNER_PID, *PMIB_TCP6TABLE_OWNER_PID;
#endif
#ifndef __IPHLPAPI_H__
typedef struct in6_addr {
union {
UCHAR Byte[16];
USHORT Word[8];
} u;
} IN6_ADDR, *PIN6_ADDR, FAR *LPIN6_ADDR;
typedef enum _UDP_TABLE_CLASS {
UDP_TABLE_BASIC,
UDP_TABLE_OWNER_PID,
UDP_TABLE_OWNER_MODULE
} UDP_TABLE_CLASS, *PUDP_TABLE_CLASS;
typedef struct _MIB_UDPROW_OWNER_PID {
DWORD dwLocalAddr;
DWORD dwLocalPort;
DWORD dwOwningPid;
} MIB_UDPROW_OWNER_PID, *PMIB_UDPROW_OWNER_PID;
typedef struct _MIB_UDPTABLE_OWNER_PID {
DWORD dwNumEntries;
MIB_UDPROW_OWNER_PID table[ANY_SIZE];
} MIB_UDPTABLE_OWNER_PID, *PMIB_UDPTABLE_OWNER_PID;
#endif
typedef struct _MIB_UDP6ROW_OWNER_PID {
UCHAR ucLocalAddr[16];
DWORD dwLocalScopeId;
DWORD dwLocalPort;
DWORD dwOwningPid;
} MIB_UDP6ROW_OWNER_PID, *PMIB_UDP6ROW_OWNER_PID;
typedef struct _MIB_UDP6TABLE_OWNER_PID {
DWORD dwNumEntries;
MIB_UDP6ROW_OWNER_PID table[ANY_SIZE];
} MIB_UDP6TABLE_OWNER_PID, *PMIB_UDP6TABLE_OWNER_PID;
#define BYTESWAP_USHORT(x) ((((USHORT)(x) << 8) | ((USHORT)(x) >> 8)) & 0xffff)
#ifndef AF_INET6
#define AF_INET6 23
#endif
// a signaler for connections without an actual status
static int PSUTIL_CONN_NONE = 128;
const char* net_connection_status[] = {
"NONE",
"STATE_CLOSED",
"STATE_LISTEN",
"STATE_SYN_SENT",
"STATE_SYN_RCVD",
"STATE_ESTAB",
"STATE_FIN_WAIT1",
"STATE_FIN_WAIT2",
"STATE_CLOSE_WAIT",
"STATE_CLOSING",
"STATE_LAST_ACK",
"STATE_TIME_WAIT",
"STATE_DELETE_TCB"
};
static int monitoring_net_connections(lua_State *l)
{
static long null_address[4] = { 0, 0, 0, 0 };
unsigned long pid = luaL_checkint(l,-3);
const char* streamtype = luaL_checkstring(l,-2);
const char* protocol = luaL_checkstring(l,-1);
int counter;
if (protocol == NULL || streamtype == NULL )
{
lua_pushnil(l);
return 1;
}
if (!( strcmp(streamtype,"inet4") == 0 || strcmp(streamtype,"inet6") == 0 ))
{
lua_pushnil(l);
return 1;
}
if (!( strcmp(protocol,"tcp") == 0 || strcmp(protocol,"udp") == 0 ))
{
lua_pushnil(l);
return 1;
}
if (pid != -1) {
if (monitoring_pid_is_running(pid) == 0) {
lua_pushnil(l);
return 1;
}
}
typedef PSTR (NTAPI * _RtlIpv4AddressToStringA)(struct in_addr *, PSTR);
typedef PSTR (NTAPI * _RtlIpv6AddressToStringA)(struct in6_addr *, PSTR);
typedef DWORD (WINAPI * _GetExtendedTcpTable)(PVOID, PDWORD, BOOL, ULONG,TCP_TABLE_CLASS, ULONG);
typedef DWORD (WINAPI * _GetExtendedUdpTable)(PVOID, PDWORD, BOOL, ULONG,UDP_TABLE_CLASS, ULONG);
_RtlIpv4AddressToStringA rtlIpv4AddressToStringA;
_RtlIpv6AddressToStringA rtlIpv6AddressToStringA;
_GetExtendedTcpTable getExtendedTcpTable;
_GetExtendedUdpTable getExtendedUdpTable;
PVOID table = NULL;
DWORD tableSize;
PMIB_TCPTABLE_OWNER_PID tcp4Table;
PMIB_UDPTABLE_OWNER_PID udp4Table;
PMIB_TCP6TABLE_OWNER_PID tcp6Table;
PMIB_UDP6TABLE_OWNER_PID udp6Table;
ULONG i;
CHAR addressBufferLocal[65];
CHAR addressBufferRemote[65];
{
HMODULE ntdll;
HMODULE iphlpapi;
ntdll = LoadLibrary(TEXT("ntdll.dll"));
rtlIpv4AddressToStringA = (_RtlIpv4AddressToStringA)GetProcAddress(ntdll, "RtlIpv4AddressToStringA");
rtlIpv6AddressToStringA = (_RtlIpv6AddressToStringA)GetProcAddress(ntdll, "RtlIpv6AddressToStringA");
/* TODO: Check these two function pointers */
iphlpapi = LoadLibrary(TEXT("iphlpapi.dll"));
getExtendedTcpTable = (_GetExtendedTcpTable)GetProcAddress(iphlpapi,"GetExtendedTcpTable");
getExtendedUdpTable = (_GetExtendedUdpTable)GetProcAddress(iphlpapi,"GetExtendedUdpTable");
FreeLibrary(ntdll);
FreeLibrary(iphlpapi);
}
if ((getExtendedTcpTable == NULL) || (getExtendedUdpTable == NULL)) {
lua_pushnil(l);
return 1;
}
// TCP IPv4 -------------------------------------------------------
if ( strcmp(streamtype,"inet4") == 0 && strcmp(protocol,"tcp") == 0)
{
table = NULL;
tableSize = 0;
getExtendedTcpTable(NULL, &tableSize, FALSE, AF_INET,TCP_TABLE_OWNER_PID_ALL, 0);
table = malloc(tableSize);
if (table == NULL) {
lua_pushnil(l);
return 1;
}
counter = 0;
lua_newtable(l);
if (getExtendedTcpTable(table, &tableSize, FALSE, AF_INET,TCP_TABLE_OWNER_PID_ALL, 0) == 0)
{
tcp4Table = (PMIB_TCPTABLE_OWNER_PID)table;
for (i = 0; i < tcp4Table->dwNumEntries; i++)
{
if (pid != -1) {
if (tcp4Table->table[i].dwOwningPid != pid) {
continue;
}
}
++counter;
lua_pushnumber(l,counter);
lua_newtable(l);
if (tcp4Table->table[i].dwLocalAddr != 0 ||tcp4Table->table[i].dwLocalPort != 0)
{
struct in_addr addr;
addr.S_un.S_addr = tcp4Table->table[i].dwLocalAddr;
rtlIpv4AddressToStringA(&addr, addressBufferLocal);
monsetTableDataS("address",addressBufferLocal);
monsetTableDataN("port",BYTESWAP_USHORT(tcp4Table->table[i].dwLocalPort));
}
// On Windows <= XP, remote addr is filled even if socket
// is in LISTEN mode in which case we just ignore it.
if ((tcp4Table->table[i].dwRemoteAddr != 0 ||
tcp4Table->table[i].dwRemotePort != 0) &&
(tcp4Table->table[i].dwState != MIB_TCP_STATE_LISTEN))
{
struct in_addr addr;
addr.S_un.S_addr = tcp4Table->table[i].dwRemoteAddr;
rtlIpv4AddressToStringA(&addr, addressBufferRemote);
monsetTableDataS("remote_address",addressBufferRemote);
monsetTableDataN("remote_port",BYTESWAP_USHORT(tcp4Table->table[i].dwRemotePort));
monsetTableDataS("protocol","tcp");
monsetTableDataS("type","inet4");
monsetTableDataN("pid",tcp4Table->table[i].dwOwningPid);
monsetTableDataS("status",net_connection_status[tcp4Table->table[i].dwState]);
monsetTableDataN("status_number",tcp4Table->table[i].dwState);
}
lua_settable(l,-3);
}
}
free(table);
return 1;
}
// TCP IPv4 -------------------------------------------------------
// TCP IPv6
if ( strcmp(streamtype,"inet6") == 0 && strcmp(protocol,"tcp") == 0)
{
table = NULL;
tableSize = 0;
getExtendedTcpTable(NULL, &tableSize, FALSE, AF_INET6,TCP_TABLE_OWNER_PID_ALL, 0);
table = malloc(tableSize);
if (table == NULL) {
lua_pushnil(l);
return 1;
}
lua_newtable(l);
counter = 0;
if (getExtendedTcpTable(table, &tableSize, FALSE, AF_INET6,TCP_TABLE_OWNER_PID_ALL, 0) == 0)
{
tcp6Table = (PMIB_TCP6TABLE_OWNER_PID)table;
for (i = 0; i < tcp6Table->dwNumEntries; i++)
{
if (pid != -1) {
if (tcp6Table->table[i].dwOwningPid != pid) {
continue;
}
}
++counter;
lua_pushnumber(l,counter);
lua_newtable(l);
if (memcmp(tcp6Table->table[i].ucLocalAddr, null_address, 16)!= 0 || tcp6Table->table[i].dwLocalPort != 0)
{
struct in6_addr addr;
memcpy(&addr, tcp6Table->table[i].ucLocalAddr, 16);
rtlIpv6AddressToStringA(&addr, addressBufferLocal);
monsetTableDataS("address",addressBufferLocal);
monsetTableDataN("port",BYTESWAP_USHORT(tcp6Table->table[i].dwLocalPort));
};
// On Windows <= XP, remote addr is filled even if socket
// is in LISTEN mode in which case we just ignore it.
if ((memcmp(tcp6Table->table[i].ucRemoteAddr, null_address, 16) != 0 || tcp6Table->table[i].dwRemotePort != 0) &&
(tcp6Table->table[i].dwState != MIB_TCP_STATE_LISTEN))
{
struct in6_addr addr;
memcpy(&addr, tcp6Table->table[i].ucRemoteAddr, 16);
rtlIpv6AddressToStringA(&addr, addressBufferRemote);
monsetTableDataS("remote_address",addressBufferRemote);
monsetTableDataN("remote_port",BYTESWAP_USHORT(tcp6Table->table[i].dwRemotePort));
monsetTableDataS("protocol","tcp");
monsetTableDataS("type","inet6");
monsetTableDataN("pid",tcp6Table->table[i].dwOwningPid);
monsetTableDataS("status",net_connection_status[tcp6Table->table[i].dwState]);
monsetTableDataN("status_number",tcp6Table->table[i].dwState);
}
lua_settable(l,-3);
}
}
free(table);
return 1;
}
// UDP IPv4
if ( strcmp(streamtype,"inet4") == 0 && strcmp(protocol,"udp") == 0)
{
table = NULL;
tableSize = 0;
getExtendedUdpTable(NULL, &tableSize, FALSE, AF_INET,UDP_TABLE_OWNER_PID, 0);
table = malloc(tableSize);
if (table == NULL) {
lua_pushnil(l);
return 1;
}
counter = 0;
lua_newtable(l);
if (getExtendedUdpTable(table, &tableSize, FALSE, AF_INET,UDP_TABLE_OWNER_PID, 0) == 0)
{
udp4Table = (PMIB_UDPTABLE_OWNER_PID)table;
for (i = 0; i < udp4Table->dwNumEntries; i++)
{
if (pid != -1) {
if (udp4Table->table[i].dwOwningPid != pid) {
continue;
}
}
++counter;
lua_pushnumber(l,counter);
lua_newtable(l);
if (udp4Table->table[i].dwLocalAddr != 0 ||udp4Table->table[i].dwLocalPort != 0)
{
struct in_addr addr;
addr.S_un.S_addr = udp4Table->table[i].dwLocalAddr;
rtlIpv4AddressToStringA(&addr, addressBufferLocal);
monsetTableDataS("address",addressBufferLocal);
monsetTableDataN("port",BYTESWAP_USHORT(udp4Table->table[i].dwLocalPort));
monsetTableDataS("protocol","udp");
monsetTableDataS("type","inet4");
monsetTableDataN("pid",udp4Table->table[i].dwOwningPid);
}
lua_settable(l,-3);
}
}
free(table);
return 1;
}
// UDP IPv6
if ( strcmp(streamtype,"inet6") == 0 && strcmp(protocol,"udp") == 0)
{
table = NULL;
tableSize = 0;
getExtendedUdpTable(NULL, &tableSize, FALSE,AF_INET6, UDP_TABLE_OWNER_PID, 0);
table = malloc(tableSize);
if (table == NULL) {
lua_pushnil(l);
return 1;
}
counter = 0;
lua_newtable(l);
if (getExtendedUdpTable(table, &tableSize, FALSE, AF_INET6,UDP_TABLE_OWNER_PID, 0) == 0)
{
udp6Table = (PMIB_UDP6TABLE_OWNER_PID)table;
for (i = 0; i < udp6Table->dwNumEntries; i++)
{
if (pid != -1) {
if (udp6Table->table[i].dwOwningPid != pid) {
continue;
}
}
++counter;
lua_pushnumber(l,counter);
lua_newtable(l);
if (memcmp(udp6Table->table[i].ucLocalAddr, null_address, 16)!= 0 || udp6Table->table[i].dwLocalPort != 0)
{
struct in6_addr addr;
memcpy(&addr, udp6Table->table[i].ucLocalAddr, 16);
rtlIpv6AddressToStringA(&addr, addressBufferLocal);
monsetTableDataS("address",addressBufferLocal);
monsetTableDataN("port",BYTESWAP_USHORT(udp6Table->table[i].dwLocalPort));
monsetTableDataS("protocol","udp");
monsetTableDataS("type","inet6");
monsetTableDataN("pid",udp6Table->table[i].dwOwningPid);
}
lua_settable(l,-3);
}
}
free(table);
return 1;
}
lua_pushnil(l);
return 1;
}
/******************************************************************************/
// Return a Network io counters
// Parameters -
// Return tables list with adapter info
/********************************************************************************/
static int
monitoring_net_io_counters(lua_State *l){
int attempts = 0;
ULONG outBufLen = 15000;
char ifname[MAX_PATH];
DWORD dwRetVal = 0;
MIB_IFROW *pIfRow = NULL;
ULONG flags = 0;
ULONG family = AF_UNSPEC;
PIP_ADAPTER_ADDRESSES pAddresses = NULL;
PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
do {
pAddresses = (IP_ADAPTER_ADDRESSES *) malloc(outBufLen);
if (pAddresses == NULL) {
lua_pushnil(l);
return 1;
}
dwRetVal = GetAdaptersAddresses(family, flags, NULL, pAddresses,&outBufLen);
if (dwRetVal == ERROR_BUFFER_OVERFLOW) {
free(pAddresses);
pAddresses = NULL;
}
else {
break;
}
attempts++;
} while ((dwRetVal == ERROR_BUFFER_OVERFLOW) && (attempts < 3));
if (dwRetVal != NO_ERROR) {
lua_pushnil(l);
return 1;
}
lua_newtable(l);
int counter = 0;
pCurrAddresses = pAddresses;
while (pCurrAddresses) {
pIfRow = (MIB_IFROW *) malloc(sizeof(MIB_IFROW));
pIfRow->dwIndex = pCurrAddresses->IfIndex;
dwRetVal = GetIfEntry(pIfRow);
if (dwRetVal == NO_ERROR) {
++counter;
lua_pushnumber(l,counter);
lua_newtable(l);
sprintf(ifname, "%wS", pCurrAddresses->FriendlyName);
monsetTableDataS("FriendlyName",ifname);
monsetTableDataN("OutOctets",pIfRow->dwOutOctets);
monsetTableDataN("InOctets",pIfRow->dwInOctets);
monsetTableDataN("OutUCastPackets",pIfRow->dwOutUcastPkts);
monsetTableDataN("InUCastPackets",pIfRow->dwInUcastPkts);
monsetTableDataN("InErrors",pIfRow->dwInErrors);
monsetTableDataN("OutErrors",pIfRow->dwOutErrors);
monsetTableDataN("InDiscards",pIfRow->dwInDiscards);
monsetTableDataN("OutDiscards",pIfRow->dwOutDiscards);
lua_settable(l,-3);
}
free(pIfRow);
pIfRow = NULL;
pCurrAddresses = pCurrAddresses->Next;
}
if (pAddresses != NULL) free(pAddresses);
if (pIfRow != NULL) free(pIfRow);
return 1;
}
/******************************************************************************/
// Return all cpu performance
// Parameters -
// Return
/********************************************************************************/
typedef enum _SYSTEM_INFORMATION_CLASS {
SystemBasicInformation = 0,
SystemPerformanceInformation = 2,
SystemTimeOfDayInformation = 3,
SystemProcessInformation = 5,
SystemProcessorPerformanceInformation = 8,
SystemInterruptInformation = 23,
SystemExceptionInformation = 33,
SystemRegistryQuotaInformation = 37,
SystemLookasideInformation = 45
} SYSTEM_INFORMATION_CLASS;
typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION {
LARGE_INTEGER IdleTime;
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER Reserved1[2];
ULONG Reserved2;
} SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION,
*PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION;