private void DoSnmp()
{
barrier_.Enter();
try
{
TableReader.GetTableOptions to = tableOptions_;
int count = DoSnmp(snmp_, target_, pdu_,
operType_, ref to,
nRepeats_, asyncSync_, debug_);
lock (barrier_)
{
nCalls_ += count;
}
}
catch (Exception e)
{
lock (barrier_)
{
exc_ = e;
}
Console.Error.WriteLine(e);
}
finally
{
barrier_.Enter();
}
}
private static int DoSnmp(Snmp snmp, SnmpTarget target, Pdu pdu,
OperType operType, ref TableReader.GetTableOptions tableOptions,
uint repeat, bool asyncSync, bool debug)
{
int ncalls = 0;
for (uint i = 0; i < repeat; i++)
{
using (IMemoryManager mgr = MemoryManager.GetMemoryManager())
{
bool show = (i % 1000) == 0;
if (show || debug)
{
PrintPdu(Console.Out, "Sending PDU to target " + target, pdu, debug);
}
Pdu resPdu = DoSnmp(snmp, target, pdu,
operType, ref tableOptions,
asyncSync, show, debug, ref ncalls);
if ((show || debug) && resPdu != null)
{
PrintPdu(Console.Out, "Received PDU:", resPdu, debug);
}
if (debug)
{
Console.WriteLine("Removing " + mgr.Count + " objects");
}
}
}
return(ncalls);
}
private Manager Clone(int id)
{
TableReader.GetTableOptions to = tableOptions_;
return(new Manager(id, snmp_, target_, pdu_,
operType_, ref to,
barrier_, nRepeats_, asyncSync_, debug_));
}
private static void Table(Snmp snmp, Pdu pdu, SnmpTarget target,
ref TableReader.GetTableOptions tableOptions, bool show, bool debug,
ref int ncalls)
{
Oid[] columnOids = GetColumnOids(pdu);
pdu = pdu.Clone(new Vb[0]); // not really needed; for test purposes
Vb[][] vbTable = TableReader.GetTable(snmp, pdu, target,
columnOids, tableOptions, ref ncalls);
if (show || debug)
{
TableReader.PrintTable(Console.Out, columnOids, vbTable);
}
}
private Manager(int id,
Snmp snmp, SnmpTarget target, Pdu pdu, OperType operType,
ref TableReader.GetTableOptions tableOptions, Barrier barrier,
uint nRepeats, bool asyncSync, bool debug)
{
id_ = id;
snmp_ = snmp;
target_ = target;
pdu_ = pdu;
operType_ = operType;
tableOptions_ = tableOptions;
barrier_ = barrier;
nRepeats_ = nRepeats;
asyncSync_ = asyncSync;
debug_ = debug;
}
private static Hashtable DoSnmp(Snmp snmp, SnmpTarget target, Pdu pdu,
OperType operType, ref TableReader.GetTableOptions tableOptions,
uint repeat, bool asyncSync, bool debug)
{
int ncalls = 0;
Hashtable htResult = new Hashtable();
for (uint i = 0; i < repeat; i++)
{
using (IMemoryManager mgr = MemoryManager.GetMemoryManager())
{
bool show = (i % 1000) == 0;
if (show || debug)
{
//PrintPdu(Console.Out, "Sending PDU to target " + target, pdu, debug);
}
Pdu resPdu = DoSnmp(snmp, target, pdu,
operType, ref tableOptions,
asyncSync, show, debug, ref ncalls);
if ((show || debug) && resPdu != null)
{
//**********OLI***********//
//PrintPdu(Console.Out, "Received PDU:", resPdu, debug);
//************************//
htResult = ManagerUtilities.getValues(resPdu);
}
if (debug)
{
Console.WriteLine("Removing " + mgr.Count + " objects");
}
}
}
htResult.Add("count", ncalls);
return(htResult);
//return ncalls;
}
private static Pdu DoSnmp(Snmp snmp, SnmpTarget target, Pdu pdu,
OperType operType, ref TableReader.GetTableOptions tableOptions,
bool asyncSync, bool show, bool debug, ref int ncalls)
{
switch (operType)
{
case OperType.Walk:
Walk(snmp, pdu, target, asyncSync, show, debug, ref ncalls);
pdu = null;
break;
case OperType.Table:
Table(snmp, pdu, target, ref tableOptions, show, debug, ref ncalls);
pdu = null;
break;
default:
pdu = Invoke(snmp, pdu, target, asyncSync);
ncalls++;
break;
}
return(pdu);
}
public static void Main(string[] args)
{
#if REQUIRES_CRT_INIT
CRT.Auto.Initialize();
#endif
if (args.Length < 2)
{
Console.WriteLine("SNMP++.NET command line utility\n"
+ "Author: Marek Malowidzki 2003,2004 ([email protected])\n"
+ "Based on SNMP++ package from Peter E. Mellquist (HP) and Jochen Katz\n"
+ "SNMP++.NET " + Assembly.GetAssembly(typeof(Snmp))
+ " built on " + Snmp.BuildTime
+ "; SNMP++ v. " + Snmp.Snmp_ppVersion + "\n\n"
+ "Usage: " + Environment.GetCommandLineArgs()[0] + " <op> <agent> [<options>]\n"
+ "where:\n"
+ "op - SNMP operation to perform (get,getnext,getbulk,set,walk,table)\n"
+ "agent - IP address or DNS name of an agent\n"
+ "options are the following:\n"
+ "-v<version> - SNMP version to use (v1(default),v2c,v3)\n"
+ "-p<port> - port number to use\n"
+ "-r<retries> - number of retries (default: 2)\n"
+ "-t<timeout> - timeout in milliseconds (default: 1000)\n"
+ "-d<bool> - print debug messages\n"
+ "-o<oid> - subsequent OID\n"
+ "-T<type> - subsequent SNMP type name:\n"
+ string.Join(",", SnmpSyntax.SupportedSyntaxNames)
+ " (o stands for oid and s for string)\n"
+ "-V<value> - subsequent value\n"
+ "Debug options:\n"
+ "-Df<file> - log file name\n"
+ "-Dl<level> - log level\n"
+ "SNMPv1/v2c options:\n"
+ "-c<comm> - read community name (default: public)\n"
+ "-C<comm> - write community name (default: public)\n"
+ "SNMPv3 options:\n"
+ "-b<boot> - boot counter value (default: 100)\n"
+ "-sn<secName> - security name\n"
+ "-sl<secLevel>- security level ("
+ ManagerUtilities.EnumInfo(typeof(SecurityLevel), SecurityLevel.AuthPriv) + ")\n"
+ "-sm<secModel>- security model ("
+ ManagerUtilities.EnumInfo(typeof(SecurityModel), SecurityModel.USM) + ")\n"
+ "-xn<ctxName> - context name\n"
+ "-xe<ctxEngId>- context engine ID (default: discover)\n"
+ "-A<authProto>- authentication protocol ("
+ ManagerUtilities.EnumInfo(typeof(AuthProtocol), AuthProtocol.None) + ")\n"
+ "-P<privProto>- privacy protocol ("
+ ManagerUtilities.EnumInfo(typeof(PrivProtocol), PrivProtocol.None) + ")\n"
+ "-Ua<authPass>- authentication password\n"
+ "-Up<privPass>- privacy password\n"
+ "Table operation options:\n"
+ "-Os<rowOid> - row index to start from\n"
+ "-Oe<rowOid> - row index to finish at\n"
+ "-On<count> - max number of rows to retrieve\n"
+ "-Or<count> - rows per query or 0 for heuristics\n"
+ "Testing options:\n"
+ "-Xa<bool> - use asynchronous interface\n"
+ "-Xm<filePfx> - collect memory usage in <filePfx>.<ext> files, where ext denotes memory type\n"
+ "-Xn<repeat> - repeat number of times (default: 1)\n"
+ "-Xp<priority>- set process priority ("
+ ManagerUtilities.EnumInfo(typeof(ProcessPriorityClass), ProcessPriorityClass.Normal) + ")\n"
+ "-Xs<bool> - use asychronous interface for synchronous calls\n"
+ "-Xt<threads> - run multiple threads (default: 1)");
Environment.Exit(1);
}
string option = "<ip>";
Thread statsCollector = null;
MemoryStats stats = null;
int retCode = 1;
try
{
UdpAddress udp = new UdpAddress(args[1]);
SnmpVersion ver = SnmpVersion.SNMPv1;
SnmpTarget.DefaultRetries = 2;
SnmpTarget.DefaultTimeout = 1000;
uint nRepeats = 1, nThreads = 1;
int debugLevel = int.MinValue;
string statsFile = null, debugFile = null;
TableReader.GetTableOptions tableOptions = new TableReader.GetTableOptions();
bool async = false, asyncSync = false, debug = false;
string readCommunity = "public",
writeCommunity = "public";
AuthProtocol authProto = AuthProtocol.None;
PrivProtocol privProto = PrivProtocol.None;
string authPass = "",
privPass = "",
secName = "",
ctxName = "",
ctxEngId = "";
SecurityLevel secLevel = SecurityLevel.AuthPriv;
SecurityModel secModel = SecurityModel.USM;
uint boot = 100;
string[] oids = new string[128],
types = new string[128],
vals = new string[128];
int noids = 0, ntypes = 0, nvals = 0;
string val;
int index = 2;
while (ManagerUtilities.GetOption(args, out option, out val, ref index))
{
char sub;
switch (option)
{
case "v":
ver = (SnmpVersion)Enum.Parse(
typeof(SnmpVersion), "SNMPv" + val, true);
break;
case "p":
udp = new UdpAddress(udp.Ip, int.Parse(val));
break;
case "r":
SnmpTarget.DefaultRetries = int.Parse(val);
break;
case "t":
SnmpTarget.DefaultTimeout = int.Parse(val);
break;
case "d":
debug = bool.Parse(val);
break;
case "o":
oids[noids++] = val;
break;
case "T":
types[ntypes++] = val;
break;
case "V":
vals[nvals++] = val;
break;
case "c":
readCommunity = val;
break;
case "C":
writeCommunity = val;
break;
case "b":
boot = uint.Parse(val);
break;
case "s":
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 'n':
secName = val;
break;
case 'l':
secLevel = (SecurityLevel)Enum.Parse(
typeof(SecurityLevel), val, true);
break;
case 'm':
secModel = (SecurityModel)Enum.Parse(
typeof(SecurityModel), val, true);
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
case "x":
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 'n':
ctxName = val;
break;
case 'e':
ctxEngId = val;
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
case "A":
authProto = (AuthProtocol)Enum.Parse(
typeof(AuthProtocol), val, true);
break;
case "P":
privProto = (PrivProtocol)Enum.Parse(
typeof(PrivProtocol), val, true);
break;
case "D":
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 'f':
debugFile = val;
break;
case 'l':
debugLevel = int.Parse(val);
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
case "U":
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 'a':
authPass = val;
break;
case 'p':
privPass = val;
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
case "O":
{
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 's':
tableOptions.startRowIndex = new Oid(val);
break;
case 'e':
tableOptions.endRowIndex = new Oid(val);
break;
case 'n':
tableOptions.maxRows = int.Parse(val);
break;
case 'r':
tableOptions.rowsPerQuery = int.Parse(val);
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
}
case "X":
switch (sub = ManagerUtilities.GetSubOption(ref val))
{
case 'a':
async = ParseBoolWithDefault(val);
break;
case 'm':
statsFile = val;
break;
case 'n':
nRepeats = uint.Parse(val);
break;
case 'p':
System.Diagnostics.Process.GetCurrentProcess().PriorityClass
= (ProcessPriorityClass)Enum.Parse(
typeof(ProcessPriorityClass), val, true);
break;
case 's':
asyncSync = ParseBoolWithDefault(val);
break;
case 't':
if ((nThreads = uint.Parse(val)) <= 0)
{
throw new ArgumentException(
val + ": invalid threads number");
}
break;
default:
throw new ArgumentException(
sub + ": invalid sub-option");
}
break;
default:
throw new ArgumentException(
"-" + option + ": invalid option");
}
}
if (noids == 0)
{
option = "<OIDs>";
throw new ArgumentException(
"No OIDs specified, use -o option");
}
bool asyncMode = async || asyncSync;
// Debug options
if (debugFile != null)
{
Snmp.DebugLogFile = debugFile;
}
if (debugLevel != int.MinValue)
{
Snmp.DebugLogLevel = debugLevel;
}
// Operation type processing
option = "<Pdu creation>";
PduType pduType;
OperType operType;
GetOperType(args[0].ToLower(), out pduType, out operType);
// Adjusting settings for a table operation
if (operType == OperType.Table)
{
TableReader.UseAsyncInvoke = asyncMode;
}
// Pdu creation
Pdu pdu;
using (IMemoryManager mgr = MemoryManager.GetMemoryManager())
{
Vb[] vbs = ManagerUtilities.CreateVbs(pduType, oids, noids, types, ntypes, vals, nvals);
pdu = new Pdu(pduType, vbs);
mgr.Remove(pdu); // remove Pdu from the memory manager
}
// SnmpTarget creation
SnmpTarget target;
if (ver == SnmpVersion.SNMPv3)
{
option = "<SNMPv3 initialization>";
V3MP.Init(new OctetStr("SNMP++.NET"), boot);
USM usm = V3MP.Instance.Usm;
usm.AddUsmUser(secName, authProto, privProto, authPass, privPass);
target = new UTarget(udp, secName, secModel);
pdu.SecurityLevel = secLevel;
pdu.ContextName = new OctetStr(ctxName);
pdu.ContextEngineId = new OctetStr(ctxEngId);
}
else
{
option = "<SNMPv1/v2c initialization>";
target = new CTarget(udp, ver, readCommunity, writeCommunity);
}
udp = null;
// Memory usage statistics initialization
option = "<Statistics collector initialization>";
if (statsFile != null)
{
stats = new MemoryStats(statsFile);
statsCollector = new Thread(new ThreadStart(stats.Collect));
statsCollector.Priority = ThreadPriority.BelowNormal;
statsCollector.Start();
}
// Snmp session initialization & further processing
option = "<SNMP session initialization>";
using (Snmp snmp = new Snmp(asyncMode))
{
Thread.CurrentThread.Name = "0";
Barrier barrier;
Delegate fun;
if (async)
{
fun = new Delegate(AsyncProcess);
barrier = new Barrier(nThreads + 1);
}
else
{
fun = new Delegate(Process);
barrier = new Barrier(nThreads);
}
Manager mgr = new Manager(0, snmp, target, pdu, operType,
ref tableOptions, barrier,
nRepeats, asyncSync, debug);
DateTime start = DateTime.Now;
int ncalls = fun(mgr, ref option);
double msec = DateTime.Now.Subtract(start).TotalMilliseconds;
// clear references on stack
pdu = null; target = null; mgr = null;
Console.WriteLine("{0} {1} SNMP request(s) in {2} msec. ({3} req./sec.)",
ncalls, asyncMode ? "asynchronous" : "synchronous",
(int)msec, msec > 0 ? (1000 * (long)ncalls / msec) : 0);
}
retCode = 0;
}
catch (SnmpClassException e)
{
Console.Error.WriteLine("*** SNMP class error while processing {0}:\n"
+ "SnmpClass status code: {1}\n{2}", option, e.Status, e);
}
catch (SnmpException e)
{
Console.Error.WriteLine("*** SNMP protocol error while processing {0}:\n"
+ "SNMP error status: {1}\nSNMP error index: {2}\n{3}",
option, e.ErrorStatus, e.ErrorIndex, e);
}
catch (Exception e)
{
Console.Error.WriteLine("*** Error while processing {0}:\n{1}", option, e);
}
Console.WriteLine("Remaining native SNMP++ objects before GC: "
+ MemoryManager.Count);
if (statsCollector != null)
{
stats.WaitForNextStat();
}
GC.Collect();
GC.Collect();
GC.WaitForPendingFinalizers();
if (statsCollector != null)
{
stats.WaitForNextStat();
statsCollector.Interrupt();
statsCollector.Join();
}
// Despite our honest intentions, there may still be uncollected
// SNMP++.NET objects, especially in the Release mode
Console.WriteLine("Remaining native SNMP++ objects after GC: "
+ MemoryManager.Count);
Environment.Exit(retCode);
}