// this routine makes up the brains of the agent
// it knows only the MIB II system group set of variables for a get operation
int agent_impl::get_response(Vb& vb)
{
// these objects represent the MIB II system group per RFC 1213
static Oid sysDescr("1.3.6.1.2.1.1.1.0"),
sysObjectID("1.3.6.1.2.1.1.2.0"), sysUpTime("1.3.6.1.2.1.1.3.0"),
sysContact("1.3.6.1.2.1.1.4.0"), sysName("1.3.6.1.2.1.1.5.0"),
sysLocation("1.3.6.1.2.1.1.6.0"), sysServices("1.3.6.1.2.1.1.7.0");
Oid oid;
vb.get_oid(oid);
if (oid == sysDescr) {
OctetStr desc("ASNMP Prototype Agent 1.0");
vb.set_value(desc);
}
else if (oid == sysObjectID) { // the IANA gives assigns Enterprise Numbers
// see ftp://ftp.isi.edu/in-notes/iana/assignments/enterprise-numbers
// for the official list of enterprise numbers. Then under this tree
// assign a unique subtree to identify this agent
Oid id("1.3.6.1.4.1.2533.9.1");
vb.set_value(id);
}
else if (oid == sysUpTime) {
ACE_Time_Value tv;
agent_clock_.elapsed_time (tv);
TimeTicks tt(tv.msec());
vb.set_value(tt);
}
else if (oid == sysContact) {
OctetStr contact("*****@*****.**");
vb.set_value(contact);
}
else if (oid == sysName) {
OctetStr fqdn("foo.org"); // extract this from the gethostbyname() TODO
vb.set_value(fqdn);
}
else if (oid == sysLocation) {
OctetStr loc("");
vb.set_value(loc);
}
else if (oid == sysServices) {
SnmpInt32 svcs(72);
vb.set_value(svcs);
}
else
return 1; // noSuchName
return 0;
}
void mrbig(void)
{
char *p;
time_t t, lastrun;
int sleeptime, i;
char hostname[256];
DWORD hostsize;
/*
* install exception logging/stacktrace handler.
* We need to resolve the symbol at run time because windows 2000
* does not have it.
*/
do {
HMODULE dll;
PVOID (*ptr) (ULONG First,PVECTORED_EXCEPTION_HANDLER Handler) = NULL;
dll = LoadLibraryEx("kernel32.dll", NULL, 0);
if (dll == NULL)
break;
ptr = (typeof(ptr))GetProcAddress(dll, "AddVectoredExceptionHandler");
if (ptr == NULL)
break;
ptr(1, VectoredExceptionHandler);
mrlog("VectoredExceptionHandler handler has been installed");
} while(0);
if (debug) {
mrlog("mrbig()");
}
for (i = 0; _environ[i]; i++) {
startup_log("%s", _environ[i]);
}
for (;;) {
if (debug) mrlog("main loop");
read_cfg("mrbig", cfgfile);
readcfg();
t = time(NULL);
strlcpy(now, ctime(&t), sizeof now);
p = strchr(now, '\n');
if (p) *p = '\0';
hostsize = sizeof hostname;
if (GetComputerName(hostname, &hostsize)) {
for (i = 0; hostname[i]; i++)
hostname[i] = tolower(hostname[i]);
snprcat(now, sizeof now, " [%s]", hostname);
}
cpu();
check_chunks("after cpu test");
disk();
check_chunks("after disk test");
memory();
check_chunks("after memory test");
msgs();
check_chunks("after msgs test");
procs();
check_chunks("after procs test");
svcs();
check_chunks("after svcs test");
wmi();
check_chunks("after wmi test");
if (pickupdir[0]) ext_tests();
lastrun = t;
t = time(NULL);
if (t < lastrun) {
mrlog("mainloop: timewarp detected, sleep for %d",
mrloop);
sleeptime = mrloop;
} else {
sleeptime = mrloop-(t-lastrun);
}
if (sleeptime < SLEEP_MIN) sleeptime = SLEEP_MIN;
if (debug) mrlog("started at %d, finished at %d, sleep for %d",
(int)lastrun, (int)t, sleeptime);
clear_cfg();
if (debug) {
dump_chunks();
check_chunks("after main loop");
}
Sleep(sleeptime*1000);
}
}
