/////////////////////////////////////////////////////////////////////////////
// 函数：SetRequest //
// 说明：设置简单变量的结果 //
// 参数：无 //
// 返回值： //
// 成功返回0，否则返回一个非0 值 //
/////////////////////////////////////////////////////////////////////////////
int BasicSNMP::SetRequest()
{
int nResult = 0;
Pdu pdu; // construct a Pdu object
Vb vb; // construct a Vb object
vb.set_oid(oid); // set the Oid portion of the Vb
vb.set_value(m_nOIDValue); // set the Oid portion of the Vb
pdu += vb;
SnmpTarget *target;// = &ctarget;
if(version ==version3)
{//If SNMP Version Is 3
nResult = InitUTarget();//Init UTarget
pdu.set_security_level( m_nSecurityLevel);//Set the Security Level portion of Pdu
pdu.set_context_name (contextName);//Set the Context Name portion of Pdu
pdu.set_context_engine_id(contextEngineID);//Set the Context Engine ID portion of Pdu
target = &utarget; //Set SNMP Target
}
else
{
target = &ctarget; //Set SNMP Target
}
nResult = pSnmp->set(pdu,*target);//Get Reques
return nResult;
}
int wpdu::load_vbs(snmp_pdu *raw_pdu, const Pdu& pdu)
{
int status = 0;
// load up the payload
// for all Vbs in list, add them to the pdu
int vb_count;
Vb tempvb;
Oid tempoid;
SmiLPOID smioid;
SmiVALUE smival;
vb_count = pdu.get_vb_count();
for (int z = 0; z < vb_count; z++) {
pdu.get_vb( tempvb, z);
tempvb.get_oid( tempoid);
smioid = tempoid.oidval();
// what are we trying to convert here (vb oid part or value part)
status = convert_vb_to_smival( tempvb, &smival );
if ( status != SNMP_CLASS_SUCCESS)
return status;
// add the var to the raw pdu
cmu_snmp::add_var(raw_pdu, smioid->ptr, (int) smioid->len, &smival);
free_smival_descriptor( &smival);
}
return status;
}
// callback : have received a Pdu from the target host with given read comm str
// this is really simplistic, but gives the general idea
int agent_impl::handle_get( Pdu &pdu, UdpTarget &target)
{
ACE_TRACE("agent_impl::handle_get");
OctetStr mgr_rd_str, agent_rd_str;
target.get_read_community(mgr_rd_str); // requster's read community string
tgt_.get_read_community(agent_rd_str); // this agent's read community string
// 1. verify we have a valid read string else drop pdu (no response to caller)
if (mgr_rd_str != agent_rd_str) {
ACE_DEBUG((LM_DEBUG, "agent_impl::handle_get: invalid read community recvd\n"));
return 0;
}
// 2. iterate over each varbind in the pdu, filling providing responses
int fdone = 0;
for (int i = 0; (i < pdu.get_vb_count()) && !fdone; i++) {
Vb vb;
pdu.get_vb(vb, i);
if (get_response(vb)) { // set a value for the oid if we can else
set_error_status(&pdu, SNMP_ERROR_NO_SUCH_NAME); // these ought to be member
set_error_index(&pdu, i); // functions but are not yet...
fdone++; // trigger flag to exit loop early
}
else // failed, return noSuch error
pdu.set_vb(vb, i);
}
// 3. lastly, return the pkt to the caller
return respond(pdu, target);
}
void getapp::result(Snmp *, int rc)
{
Vb vb;
if (rc < 0)
{
const char *ptr = snmp_.error_string();
cout << "ASNMP:ERROR: get command failed reason: " << ptr << endl;
}
else
{
// check to see if there are any errors
if (pdu_.get_error_status())
{
cout << "ERROR: agent replied as follows\n";
cout << pdu_.agent_error_reason() << endl;
}
else
{
VbIter iter(pdu_);
while (iter.next(vb))
{
cout << "\tOid = " << vb.to_string_oid() << "\n";
cout << "\tValue = " << vb.to_string_value() << "\n";
}
}
}
cout << "\nASNMP:INFO: command completed normally.\n"<< endl;
ACE_Reactor::instance()->end_reactor_event_loop();
}
int getapp::run()
{
//----------[ create a ASNMP session ]-----------------------------------
if ( snmp_.valid() != SNMP_CLASS_SUCCESS) {
cout << "\nASNMP:ERROR:Create session failed: "<<
snmp_.error_string()<< "\n";
return 1;
}
//--------[ build up ASNMP object needed ]-------------------------------
if (address_.get_port() == 0)
address_.set_port(DEF_AGENT_PORT);
target_.set_address( address_); // make a target using the address
//-------[ issue the request, blocked mode ]-----------------------------
cout << "\nASNMP:INFO:SNMP Version " << (target_.get_version()+ 1) << \
" GET SAMPLE PROGRAM \nOID: " << oid_.to_string() << "\n";
target_.get_address(address_); // target updates port used
int rc;
const char *name = address_.resolve_hostname(rc);
cout << "Device: " << address_ << " ";
//FUZZ: disable check_for_lack_ACE_OS
cout << (rc ? "<< did not resolve via gethostbyname() >>" : name) << "\n";
//FUZZ: enable check_for_lack_ACE_OS
cout << "[ Retries=" << target_.get_retry() << " \
Timeout=" << target_.get_timeout() <<" ms " << "Community=" << \
community_.to_string() << " ]"<< endl;
if (snmp_.get( pdu_, target_) == SNMP_CLASS_SUCCESS) {
Vb vb;
// check to see if there are any errors
if (pdu_.get_error_status()) {
cout << "ERROR: agent replied as follows\n";
cout << pdu_.agent_error_reason() << endl;
}
else {
VbIter iter(pdu_);
while (iter.next(vb)) {
cout << "\tOid = " << vb.to_string_oid() << "\n";
cout << "\tValue = " << vb.to_string_value() << "\n";
}
}
}
else {
const char *ptr = snmp_.error_string();
cout << "ASNMP:ERROR: get command failed reason: " << ptr << endl;
}
cout << "\nASNMP:INFO: command completed normally.\n"<< endl;
return 0;
}
std::shared_ptr<Data> FlowManager::get_sdu_for_above(const PortId id)
{
Pdu tmp;
if (above_buffers_.find(id) == above_buffers_.end()) {
std::unique_lock<std::mutex> lock(mutex_);
above_buffers_[id].reset(new Buffer<Pdu>);
}
// we know id exists, so we can safely access it
above_buffers_.at(id)->popFront(tmp);
return tmp.get_payload();
}
void KeyChange(Snmp* snmp, Pdu& myPdu,
const OctetStr& user, const OctetStr& newpass,
SnmpTarget& target, int type)
{
struct UsmKeyUpdate *uku = NULL;
int stat;
int status;
uku = usm->key_update_prepare(user, target, newpass,
myPdu, type, stat);
if (uku == NULL)
cout << "Key update preparation failed *************" << endl
<< "with " << snmp->error_msg(stat) << endl <<endl;
if (( status = snmp->set( myPdu,target)) == SNMP_CLASS_SUCCESS) {
Vb vb3;
Oid oid3;
myPdu.get_vb( vb3,0);
vb3.get_oid(oid3);
Vb vb4;
Oid oid4;
myPdu.get_vb( vb4,1);
vb4.get_oid(oid4);
if (myPdu.get_type() == REPORT_MSG) {
cout << "Received a reportPDU! with Oid "
<< oid3.get_printable() << endl
<< snmp->error_msg(oid3) << endl;
usm->key_update_abort(uku);
}
else {
cout << flush << endl
<< "Oid = " << vb3.get_printable_oid() << endl
<< "Value = " << vb3.get_printable_value() << endl;
cout << flush << endl
<< "Oid = " << vb4.get_printable_oid() << endl
<< "Value = " << vb4.get_printable_value() << endl;
int resul = usm->key_update_commit(uku, USM_PasswordAllKeyUpdate);
cout << endl << "result of local key update: "
<< resul << endl;
}
}
else {
cout << "SNMP++ KeyChange Error, " << snmp->error_msg( status)
<< " (" << status <<")"<< endl;
usm->key_update_abort(uku);
}
cout << "******************************** END"
<< endl << endl << flush;
}
int FlowManager::handle_pdu_from_below(const PortId id, Pdu &pdu)
{
LOG_DEBUG("handle_frame_from_below()");
// check if destination address matches
if (destinations_.find(pdu.get_dest_addr()) == destinations_.end()) {
// frame is not for us
LOG_DEBUG("Ignoring frame for " << pdu.get_dest_addr());
return 0;
}
// get corresponding connection handle
FlowBase* flow = find_flow(pdu, id);
flow->handle_frame_from_below(pdu);
return 1;
}
const string & SnmpDG::GetMibObject(const snmp_version version, const SnmpPara& spr, const string oid) const
{
if(!m_inited_success)
{
return m_empty_object;
}
Snmp::socket_startup();
UdpAddress address(spr.ip.c_str());
//string myoid = oid;
Pdu pdu;
Vb vb;
vb.set_oid(oid.c_str());//(myoid.c_str());
pdu += vb;
CTarget ctarget(address);
ctarget.set_version( version );
ctarget.set_retry(spr.retry);
ctarget.set_timeout(spr.timeout);
ctarget.set_readcommunity(spr.community.c_str());
SnmpTarget *target;
target = &ctarget;
int status;
Snmp snmp(status, 0, false);
if (status == SNMP_CLASS_SUCCESS)
{
if ((status = snmp.get( pdu, *target)) == SNMP_CLASS_SUCCESS)
{
pdu.get_vb( vb,0);
//string oid_tmp = vb.get_printable_oid();
m_mib_object = vb.get_printable_value();
}
else
{
m_mib_object = string("");
SetLastError(status);
}
}
else
{
m_mib_object = string("");
SetLastError(status);
}
Snmp::socket_cleanup(); // Shut down socket subsystem
return m_mib_object;
}
// return a pdu from a buffer
int wpdu::get_pdu(Pdu& pdu, snmp_version& version)
{
if (iovec_.iov_len == 0)
return -1; // NO DATA
snmp_pdu *raw_pdu;
raw_pdu = cmu_snmp::pdu_create(0);
if (!raw_pdu) {
return SNMP_CLASS_RESOURCE_UNAVAIL;
}
// max value a client can send us - TODO: replace this with an
// api to get actual string length
int status = cmu_snmp::parse( raw_pdu, (unsigned char *)iovec_.iov_base,
community_name, comm_len,
version, iovec_.iov_len);
if (status != 0)
return SNMP_CLASS_INTERNAL_ERROR;
community_name[comm_len] = 0; // set null based on returned length
set_request_id( &pdu, raw_pdu->reqid);
set_error_status( &pdu, (int) raw_pdu->errstat);
set_error_index( &pdu, (int) raw_pdu->errindex);
pdu.set_type( raw_pdu->command);
if (restore_vbs(pdu, raw_pdu)) {
cmu_snmp::free_pdu(raw_pdu);
return SNMP_CLASS_INTERNAL_ERROR;
}
cmu_snmp::free_pdu(raw_pdu);
return 0;
}
int sagent::respond(Pdu& pdu,UdpTarget& tgt)
{
pdu.set_type(sNMP_PDU_RESPONSE);
transaction tr(pdu, tgt, iv_snmp_session_);
tr.send();
return 0;
}
int CNotifyEvent::Callback(SnmpTarget &target, Pdu &pdu, SnmpSocket fd, int status)
{
Oid trapid;
pdu.get_notify_id(trapid);
(void)fd;
// Make the callback if the trap passed the filters
if ((m_snmp) && (notify_filter(trapid, target)))
{
int reason;
if (SNMP_CLASS_TL_FAILED == status)
reason = SNMP_CLASS_TL_FAILED;
else
reason = SNMP_CLASS_NOTIFICATION;
//------[ call into the callback function ]-------------------------
if (m_snmp->get_notify_callback())
(m_snmp->get_notify_callback())(
reason,
m_snmp, // snmp++ session who owns the req
pdu, // trap pdu
target, // target
m_snmp->get_notify_callback_data()); // callback data
}
return SNMP_CLASS_SUCCESS;
}
int Snmp::run_transaction(Pdu& pdu, UdpTarget& target)
{
int rc, done = 0;
// 1. set unique id to match this packet on return
size_t hold_req_id = req_id_++;
set_request_id(&pdu, hold_req_id);
// 2. write request to agent
transaction trans(pdu, target, iv_snmp_session_);
// this call blocks while it attempts to retrieve agent response
while (!done) {
if ((rc = trans.run()) < 0) {
last_transaction_status_ = rc;
return rc;
}
else {
trans.result(pdu);
// verify this is the pdu we are after
if (pdu.get_request_id() == hold_req_id)
done = 1 ;
}
}
return 0;
}
Status SnmpManager::handleOperationGetNext(Request *request)
{
Snmp::socket_startup();
int status;
Snmp snmp(status, 0, false);
if (status != SNMP_CLASS_SUCCESS) {
/*Setup SNMP FAILED*/
Helper::log(0, "RequestGetNext Failed");
Helper::log(1, snmp.error_msg(status));
Helper::pop("Error", snmp.error_msg(status));
Snmp::socket_cleanup();
return Status_FAILED;
}
Pdu pdu;
pdu += request->data;
CTarget ctarget(request->address);
ctarget.set_retry(request->retry);
ctarget.set_timeout(request->timeout);
ctarget.set_version(request->version);
ctarget.set_readcommunity(request->community.c_str());
SnmpTarget *target = &ctarget;
status = snmp.get_next(pdu, *target);
if (status == SNMP_CLASS_SUCCESS) {
/*GetNextRequest SUCCESS*/
Helper::log(1, "RequestGetNext SUCCESS");
pdu.get_vb(request->data, 0);
QString replayOid = request->data.get_printable_oid();
QString replayValue = request->data.get_printable_value();
}
else {
/*GetNextRequest FAILED*/
Helper::log(0, "RequestGetNext Failed");
Helper::log(1, snmp.error_msg(status));
Helper::pop("Error", snmp.error_msg(status));
Snmp::socket_cleanup();
return Status_FAILED;
}
Snmp::socket_cleanup();
qDebug() << "########################################################";
qDebug() << "Handle RequestGetNext Successfully";
qDebug() << "Oid: " << request->data.get_printable_oid();
qDebug() << "Value: " << request->data.get_printable_value();
qDebug() << "########################################################";
return Status_SUCCESS;
}
int Snmp::validate_args(const Pdu& pdu, const UdpTarget& target) const
{
// 0. check object status
if (construct_status_ != SNMP_CLASS_SUCCESS)
return construct_status_;
// 1. check args passed
if ( !pdu.valid() || !target.valid() )
return SNMP_INVALID_ARGS;
return 0;
}
int Snmp::set( Pdu &pdu, UdpTarget &target, Snmp_Result * cb)
{
ACE_TRACE("Snmp::set");
int rc;
if ((rc = validate_args(pdu, target)) != 0)
return rc;
pdu.set_type( sNMP_PDU_SET);
check_default_port(target);
return run_transaction(pdu, target, cb);
}
MibIter::MibIter(Snmp* snmp, Pdu& pdu, UdpTarget *target):
snmp_(snmp), target_(target), pdu_(pdu), first_(0),
valid_(0)
{
// verify we have a valid oid to begin iterating with
Oid oid;
Vb vb;
pdu.get_vb(vb, 0);
vb.get_oid(oid);
if (oid.valid())
valid_ = 1;
}
void callback( int reason, Snmp *snmp, Pdu &pdu, SnmpTarget &target, void *cd)
{
Vb nextVb;
int pdu_error;
cout << "reason: " << reason << endl
<< "msg: " << snmp->error_msg(reason) << endl;
pdu_error = pdu.get_error_status();
if (pdu_error) {
cout << "Response contains error: "
<< snmp->error_msg(pdu_error)<< endl;
}
for (int i=0; i<pdu.get_vb_count(); i++)
{
pdu.get_vb(nextVb, i);
cout << "Oid: " << nextVb.get_printable_oid() << endl
<< "Val: " << nextVb.get_printable_value() << endl;
}
if (pdu.get_type() == sNMP_PDU_INFORM) {
cout << "pdu type: " << pdu.get_type() << endl;
cout << "sending response to inform: " << endl;
nextVb.set_value("This is the response.");
pdu.set_vb(nextVb, 0);
snmp->response(pdu, target);
}
cout << endl;
}
// return vb of next oid in agent tree, return 1 else return 0, reason set
int MibIter::next(Vb& vb, char *& reason)
{
int rc;
if (valid_ == 0) // not valid object
return -1;
// 1. poll for value
if (first_ == 0) {
rc = snmp_->get( pdu_, *target_);
first_++;
}
else {
rc = snmp_->get_next( pdu_, *target_);
}
if (rc != SNMP_CLASS_SUCCESS) {
reason = const_cast <char*> (snmp_->error_string());
return 0;
}
// 2. check for problems
if (pdu_.get_error_status()) {
reason = const_cast <char*> (pdu_.agent_error_reason());
return 0;
}
// 3. return vb to caller
pdu_.get_vb(vb, 0);
Oid nextoid;
vb.get_oid(nextoid); // and setup next oid to get
Vb nextvb(nextoid);
pdu_.delete_all_vbs();
pdu_ += nextvb; // can't do set_vb as there are no entries to replace
return 1; // ok
}
// one way, best of luck, non-confirmed alert
int Snmp::trap( Pdu &pdu, UdpTarget &target)
{
ACE_TRACE("Snmp::trap");
int rc;
if ((rc = validate_args(pdu, target)) != 0)
return rc;
pdu.set_type( sNMP_PDU_V1TRAP);
check_default_port(target, DEF_TRAP_PORT);
// 2. write request to agent
transaction trans(pdu, target, iv_snmp_session_);
if (trans.send() > 0) // expect number of bytes sent on
return 0;
last_transaction_status_ = SNMP_CLASS_INTERNAL_ERROR;
return -1;
}
// return pdu to caller
int transaction::result(Pdu& pdu, char *comm_str, ACE_INET_Addr *from)
{
// TODO: check to see the sender matches the receiver address..
// remove any vbs existing in this pdu
pdu.delete_all_vbs();
// any data to return?
if (receive_iovec_.iov_len == 0)
return -1;
wpdu tmp(receive_iovec_);
snmp_version ver;
// return comm str and from address of incomming pdu if requested
int rc = tmp.get_pdu(pdu, ver);
if (comm_str)
ACE_OS::strcpy(comm_str, (char *)tmp.get_community());
if (from)
*from = receive_addr_;
return rc;
}
void MainWindow::async_callback(int reason, Snmp * /*snmp*/, Pdu &pdu,
SnmpTarget &target)
{
Vb nextVb;
int pdu_error;
QString prefix_text;
QString notify_text;
push_button_get_next->setEnabled(true);
// What is the reason for this callback?
if (reason == SNMP_CLASS_NOTIFICATION)
{
prefix_text = "Trap: ";
// get the notify id for traps
Oid id;
pdu.get_notify_id(id);
notify_text = QString(" ID: %1 Type %2 -- ").arg(id.get_printable())
.arg(pdu.get_type());
}
else if (reason == SNMP_CLASS_ASYNC_RESPONSE)
{
prefix_text = "Response ";
}
else if (reason == SNMP_CLASS_TIMEOUT)
{
prefix_text = "Timeout ";
}
else
{
QString err = QString("\nDid not receive async response/trap: (%1) %2\n")
.arg(reason).arg(Snmp::error_msg(reason));
text_edit_output->append(err);
}
// Look at the error status of the Pdu
pdu_error = pdu.get_error_status();
if (pdu_error)
{
QString err = "\nResponse contains error:\n";
err += Snmp::error_msg(pdu_error);
text_edit_output->append(err);
return;
}
// The Pdu must contain at least one Vb
if (pdu.get_vb_count() == 0)
{
QString err = "\nPdu is empty\n";
text_edit_output->append(err);
return;
}
for (int i=0; i<pdu.get_vb_count(); i++)
{
// Get the Vb of the Pdu
pdu.get_vb(nextVb, i);
// Get Oid and value from the Vb and display it
line_edit_obj_id->setText(nextVb.get_printable_oid());
line_edit_value->setText(nextVb.get_printable_value());
text_edit_output->append(prefix_text +
target.get_address().get_printable() +
" -- " +
notify_text +
line_edit_obj_id->text() + " = " +
line_edit_value->text() + "\n");
}
// If we received a inform pdu, we have to send a response
if (pdu.get_type() == sNMP_PDU_INFORM)
{
text_edit_output->append("Sending response to inform.\n");
// just change the value of the first vb
pdu.get_vb(nextVb, 0);
nextVb.set_value("This is the response.");
pdu.set_vb(nextVb, 0);
snmp->response(pdu, target);
}
}
// issue a GET-NEXT request
void MainWindow::push_button_get_next_clicked()
{
int status;
if (!snmp)
return;
push_button_get_next->setEnabled(false);
// Create a Oid and a address object from the entered values
Oid oid(line_edit_obj_id->text());
UdpAddress address(line_edit_target->text());
// check if the address is valid
// One problem here: if a hostname is entered, a blocking DNS lookup
// is done by the address object.
if (!address.valid())
{
QString err = QString("\nInvalid Address or DNS Name: %1\n")
.arg(line_edit_target->text());
text_edit_output->append(err);
push_button_get_next->setEnabled(true);
return;
}
Pdu pdu; // empty Pdu
Vb vb; // empty Vb
SnmpTarget *target; // will point to a CTarget(v1/v2c) or UTarget (v3)
// Set the Oid part of the Vb
vb.set_oid(oid);
// Add the Vb to the Pdu
pdu += vb;
// Get retries and timeout values
int retries = spin_box_retries->value();
int timeout = 100 * spin_box_timeout->value();
if (radio_button_v3->isChecked())
{
// For SNMPv3 we need a UTarget object
UTarget *utarget = new UTarget(address);
utarget->set_version(version3);
utarget->set_security_model(SNMP_SECURITY_MODEL_USM);
utarget->set_security_name(combo_box_sec_name->currentText());
target = utarget;
// set the security level to use
if (combo_box_sec_level->currentText() == "noAuthNoPriv")
pdu.set_security_level(SNMP_SECURITY_LEVEL_NOAUTH_NOPRIV);
else if (combo_box_sec_level->currentText() == "authNoPriv")
pdu.set_security_level(SNMP_SECURITY_LEVEL_AUTH_NOPRIV);
else
pdu.set_security_level(SNMP_SECURITY_LEVEL_AUTH_PRIV);
// Not needed, as snmp++ will set it, if the user does not set it
pdu.set_context_name(line_edit_context_name->text());
pdu.set_context_engine_id(line_edit_context_engine_id->text());
}
else
{
// For SNMPv1/v2c we need a CTarget
CTarget *ctarget = new CTarget(address);
if (radio_button_v2->isChecked())
ctarget->set_version(version2c);
else
ctarget->set_version(version1);
// set the community
ctarget->set_readcommunity( line_edit_community->text());
target = ctarget;
}
target->set_retry(retries); // set the number of auto retries
target->set_timeout(timeout); // set timeout
// Now do an async get_next
status = snmp->get_next(pdu, *target, callback, this);
// Could we send it?
if (status == SNMP_CLASS_SUCCESS)
{
timer.start(100);
}
else
{
QString err = QString("\nCould not send async GETNEXT request: %1\n")
.arg(Snmp::error_msg(status));
text_edit_output->append(err);
push_button_get_next->setEnabled(true);
}
// the target is no longer needed
delete target;
}
int main(int argc, char **argv)
{
//---------[ check the arg count ]----------------------------------------
if ( argc < 4 )
usage();
if ( strstr( argv[1],"-h") != 0 )
help();
if ( strstr( argv[1],"-?") != 0 )
usage();
#if !defined(_NO_LOGGING) && !defined(WITH_LOG_PROFILES)
// Set filter for logging
DefaultLog::log()->set_filter(ERROR_LOG, 7);
DefaultLog::log()->set_filter(WARNING_LOG, 7);
DefaultLog::log()->set_filter(EVENT_LOG, 7);
DefaultLog::log()->set_filter(INFO_LOG, 7);
DefaultLog::log()->set_filter(DEBUG_LOG, 7);
#endif
Snmp::socket_startup(); // Initialize socket subsystem
//---------[ make a GenAddress and Oid object to retrieve ]---------------
UdpAddress address( argv[1]); // make a SNMP++ Generic address
if ( !address.valid()) { // check validity of address
cout << "Invalid Address or DNS Name, " << argv[1] << "\n";
usage();
}
OctetStr newUser, newPassword;
if (((strstr( argv[2],"-")==0) && (strstr( argv[3],"-")==0))) {
newUser = argv[2];
newPassword = argv[3];
}
else
{
cout << "wrong parameters..." << endl;
return 1;
}
//---------[ determine options to use ]-----------------------------------
snmp_version version=version1; // default is v1
int retries=1; // default retries is 1
int timeout=100; // default is 1 second
u_short port=161; // default snmp port is 161
OctetStr community("public"); // community name
OctetStr privPassword("");
OctetStr authPassword("");
OctetStr securityName("");
int securityModel = SNMP_SECURITY_MODEL_USM;
int securityLevel = SNMP_SECURITY_LEVEL_AUTH_PRIV;
OctetStr contextName("");
OctetStr contextEngineID("");
long authProtocol = SNMP_AUTHPROTOCOL_NONE;
long privProtocol = SNMP_PRIVPROTOCOL_NONE;
OctetStr engineID;
v3MP *v3_MP;
char *ptr;
for(int x=1;x<argc;x++) { // parse for version
if ( strstr( argv[x],"-v2")!= 0) {
version = version2c;
continue;
}
if ( strstr( argv[x],"-r")!= 0) { // parse for retries
ptr = argv[x]; ptr++; ptr++;
retries = atoi(ptr);
if (( retries<0)|| (retries>5)) retries=1;
continue;
}
if ( strstr( argv[x], "-t")!=0) { // parse for timeout
ptr = argv[x]; ptr++; ptr++;
timeout = atoi( ptr);
if (( timeout < 100)||( timeout>500)) timeout=100;
continue;
}
if ( strstr( argv[x],"-C")!=0) {
ptr = argv[x]; ptr++; ptr++;
community = ptr;
continue;
}
if ( strstr( argv[x],"-P")!=0) {
ptr = argv[x]; ptr++; ptr++;
sscanf(ptr, "%hu", &port);
continue;
}
#ifdef WITH_LOG_PROFILES
if ( strstr( argv[x], "-L" ) != 0 ) {
ptr = argv[x]; ptr++; ptr++;
DefaultLog::log()->set_profile(ptr);
}
#endif
if ( strstr( argv[x],"-v3")!= 0) {
version = version3;
continue;
}
if ( strstr( argv[x],"-auth") != 0) {
ptr = argv[x]; ptr+=5;
if (strcasecmp(ptr, "SHA") == 0)
authProtocol = SNMP_AUTHPROTOCOL_HMACSHA;
else if (strcasecmp(ptr, "MD5") == 0)
authProtocol = SNMP_AUTHPROTOCOL_HMACMD5;
else if (strcasecmp(ptr, "NONE") == 0)
authProtocol = SNMP_AUTHPROTOCOL_NONE;
else
cout << "Warning: ignoring unknown auth protocol: " << ptr << endl;
continue;
}
if ( strstr( argv[x],"-priv") != 0) {
ptr = argv[x]; ptr+=5;
if (strcasecmp(ptr, "DES") == 0)
privProtocol = SNMP_PRIVPROTOCOL_DES;
else if (strcasecmp(ptr, "3DESEDE") == 0)
privProtocol = SNMP_PRIVPROTOCOL_3DESEDE;
else if (strcasecmp(ptr, "IDEA") == 0)
privProtocol = SNMP_PRIVPROTOCOL_IDEA;
else if (strcasecmp(ptr, "AES128") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES128;
else if (strcasecmp(ptr, "AES192") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES192;
else if (strcasecmp(ptr, "AES256") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES256;
else if (strcasecmp(ptr, "NONE") == 0)
privProtocol = SNMP_PRIVPROTOCOL_NONE;
else
cout << "Warning: ignoring unknown priv protocol: " << ptr << endl;
continue;
}
if ( strstr( argv[x],"-sn")!=0) {
ptr = argv[x]; ptr+=3;
securityName = ptr;
continue;
}
if ( strstr( argv[x], "-sl")!=0) {
ptr = argv[x]; ptr+=3;
securityLevel = atoi( ptr);
if (( securityLevel < SNMP_SECURITY_LEVEL_NOAUTH_NOPRIV) ||
( securityLevel > SNMP_SECURITY_LEVEL_AUTH_PRIV))
securityLevel = SNMP_SECURITY_LEVEL_AUTH_PRIV;
continue;
}
if ( strstr( argv[x], "-sm")!=0) {
ptr = argv[x]; ptr+=3;
securityModel = atoi( ptr);
if (( securityModel < SNMP_SECURITY_MODEL_V1) ||
( securityModel > SNMP_SECURITY_MODEL_USM))
securityModel = SNMP_SECURITY_MODEL_USM;
continue;
}
if ( strstr( argv[x],"-cn")!=0) {
ptr = argv[x]; ptr+=3;
contextName = ptr;
continue;
}
if ( strstr( argv[x],"-ce")!=0) {
ptr = argv[x]; ptr+=3;
contextEngineID = OctetStr::from_hex_string(ptr);
continue;
}
if ( strstr( argv[x],"-ua")!=0) {
ptr = argv[x]; ptr+=3;
authPassword = ptr;
continue;
}
if ( strstr( argv[x],"-up")!=0) {
ptr = argv[x]; ptr+=3;
privPassword = ptr;
continue;
}
if ( strstr( argv[x],"-e")!=0) {
ptr = argv[x]; ptr+=2;
engineID = OctetStr::from_hex_string(ptr);
continue;
}
}
//----------[ create a SNMP++ session ]-----------------------------------
int status;
// bind to any port and use IPv6 if needed
Snmp snmp(status, 0, (address.get_ip_version() == Address::version_ipv6));
if ( status != SNMP_CLASS_SUCCESS) {
cout << "SNMP++ Session Create Fail, " << snmp.error_msg(status) << "\n";
return 1;
}
//---------[ init SnmpV3 ]--------------------------------------------
if (version == version3) {
OctetStr engineId = "snmpPasswd";
const char *filename = "snmpv3_boot_counter";
unsigned int snmpEngineBoots = 0;
int status;
status = getBootCounter(filename, engineId, snmpEngineBoots);
if ((status != SNMPv3_OK) && (status < SNMPv3_FILEOPEN_ERROR))
{
cout << "Error loading snmpEngineBoots counter: " << status << endl;
return 1;
}
snmpEngineBoots++;
status = saveBootCounter(filename, engineId, snmpEngineBoots);
if (status != SNMPv3_OK)
{
cout << "Error saving snmpEngineBoots counter: " << status << endl;
return 1;
}
int construct_status;
v3_MP = new v3MP(engineId, snmpEngineBoots, construct_status);
if (construct_status != SNMPv3_MP_OK)
{
cout << "Error initializing v3MP: " << construct_status << endl;
return 1;
}
usm = v3_MP->get_usm();
usm->add_usm_user(securityName,
authProtocol, privProtocol,
authPassword, privPassword);
}
else
{
// MUST create a dummy v3MP object if _SNMPv3 is enabled!
int construct_status;
v3_MP = new v3MP("dummy", 0, construct_status);
}
//--------[ build up SNMP++ object needed ]-------------------------------
Pdu pdu; // construct a Pdu object
Vb vb; // construct a Vb object
vb.set_oid(Oid("1.3.6.1.2.1.1.1.0")); // set the Oid portion of the Vb
pdu += vb; // add the vb to the Pdu
address.set_port(port);
CTarget ctarget( address); // make a target using the address
UTarget utarget( address);
if (version == version3) {
utarget.set_version( version); // set the SNMP version SNMPV1 or V2 or V3
utarget.set_retry( retries); // set the number of auto retries
utarget.set_timeout( timeout); // set timeout
utarget.set_security_model( securityModel);
utarget.set_security_name( securityName);
pdu.set_security_level( securityLevel);
pdu.set_context_name (contextName);
pdu.set_context_engine_id(contextEngineID);
}
else {
ctarget.set_version( version); // set the SNMP version SNMPV1 or V2
ctarget.set_retry( retries); // set the number of auto retries
ctarget.set_timeout( timeout); // set timeout
ctarget.set_readcommunity( community); // set the read community name
}
//-------[ issue the request, blocked mode ]-----------------------------
cout << "SNMP++ Get to " << argv[1] << " SNMPV"
<< ((version==version3) ? (version) : (version+1))
<< " Retries=" << retries
<< " Timeout=" << timeout * 10 <<"ms";
if (version == version3)
cout << endl
<< "securityName= " << securityName.get_printable()
<< ", securityLevel= " << securityLevel
<< ", securityModel= " << securityModel << endl
<< "contextName= " << contextName.get_printable()
<< ", contextEngineID= " << contextEngineID.get_printable()
<< endl;
else
cout << " Community=" << community.get_printable() << endl << flush;
SnmpTarget *target;
if (version == version3)
target = &utarget;
else
target = &ctarget;
Pdu pduKeyChange;
if (version == version3) {
pduKeyChange.set_security_level( securityLevel);
pduKeyChange.set_context_name (contextName);
pduKeyChange.set_context_engine_id(contextEngineID);
}
snmp.get( pdu, *target);
KeyChange(&snmp, pduKeyChange, newUser, newPassword, *target, AUTHKEY);
Snmp::socket_cleanup(); // Shut down socket subsystem
}
wpdu::wpdu(const Pdu& pdu, const UdpTarget& target):
valid_flag_(SNMP_CLASS_INVALID ), comm_len(MAX_COMM_STR_LEN)
{
reset_iov(iovec_);
version_ = target.get_version();
int status;
OctetStr comm_str;
community_name[0] = 0;
snmp_pdu *raw_pdu; // create a raw pdu
raw_pdu = cmu_snmp::pdu_create( (int) pdu.get_type());
if (!raw_pdu) {
valid_flag_ = SNMP_CLASS_RESOURCE_UNAVAIL;
return;
}
raw_pdu->reqid = pdu.get_request_id();
raw_pdu->errstat= (unsigned long) pdu.get_error_status();
raw_pdu->errindex= (unsigned long) pdu.get_error_index();
switch (raw_pdu->command) {
case sNMP_PDU_GET:
case sNMP_PDU_GETNEXT:
target.get_read_community(comm_str);
break;
case sNMP_PDU_SET:
target.get_write_community(comm_str);
break;
case sNMP_PDU_V1TRAP:
target.get_read_community(comm_str);
if (set_trap_info(raw_pdu, pdu)) // will free raw_pdu
return;
break;
case sNMP_PDU_RESPONSE:
break;
default:
ACE_ASSERT(0);
return;
}
if (load_vbs(raw_pdu, pdu)) {
cmu_snmp::free_pdu( raw_pdu);
valid_flag_ = SNMP_CLASS_RESOURCE_UNAVAIL;
return;
}
// TODO: determine how big raw_pdu serializes out to
iovec_.iov_len = target.get_max_pdu_size();
ACE_NEW(iovec_.iov_base, char [iovec_.iov_len]);
// create raw byte stream
// The intermediate integer is to avoid type-punned pointer
// dereferencing.
int out_length = iovec_.iov_len;
status = cmu_snmp::build( raw_pdu,
(unsigned char *)iovec_.iov_base,
&out_length,
target.get_version(),
comm_str.data(),
comm_str.length());
iovec_.iov_len = out_length;
if ( status != 0) {
valid_flag_ = SNMP_ERROR_WRONG_ENCODING;
cmu_snmp::free_pdu( raw_pdu);
return;
}
cmu_snmp::free_pdu( raw_pdu);
valid_flag_ = SNMP_CLASS_SUCCESS;
}
int CSVBaseSNMP::GetRequest(MonitorResult &ResultList)
{
WriteLog("\n\n*****************************");
WriteLog("GetRequest!");
int nResult = 0;
Pdu pdu; // construct a Pdu object
Vb vb; // construct a Vb object
vb.set_oid( oid); // set the Oid portion of the Vb
pdu += vb; // add the vb to the Pdu
SnmpTarget *target;
if(version == version3)
{//If SNMP Version Is 3
nResult = InitUTarget(); //Init UTarget
pdu.set_security_level( m_lSecurityLevel); //Set the Security Level portion of Pdu
pdu.set_context_name(m_szContextName); //Set the Context Name portion of Pdu
pdu.set_context_engine_id(m_szContextEngineID); //Set the Context Engine ID portion of Pdu
target = &m_Utarget; //Set SNMP Target
}
else
{
target = &m_Ctarget; //Set SNMP Target
}
try
{
//cout << address << endl;
//cout << oid.get_printable() << endl;
if(m_pSnmp)
{
nResult = m_pSnmp->get( pdu,*target); //Get Reques
if(nResult != 0)
{//当有错误发生时候
m_szErrorMsg = m_pSnmp->error_msg(nResult);
return nResult;
}
for ( int i = 0; i < pdu.get_vb_count(); i ++)
{
pdu.get_vb(vb, i);
if (pdu.get_type() == REPORT_MSG)
{
Oid tmp;
vb.get_oid(tmp);
return -5;
}
// look for var bind exception, applies to v2 only
if ( vb.get_syntax() != sNMP_SYNTAX_ENDOFMIBVIEW)
{
SNMP_Monitor_Result result;
result.m_szOID = vb.get_printable_oid();
result.m_szValue = vb.get_printable_value();
size_t nPosition = result.m_szOID.rfind(".");
if(nPosition > 0)
{
result.m_szIndex = result.m_szOID.substr(nPosition);
result.m_szOID = result.m_szOID.substr(0, nPosition - 1);
}
WriteLog(result.m_szIndex.c_str());
WriteLog(result.m_szValue.c_str());
ResultList[i] = result;
}
else
{
m_szErrorMsg = "End of MIB Reached";
return -4;
}
}
}
}
catch(...)
{
DWORD dwError = GetLastError();
char szMsg[512] = {0};
int nlen = sprintf(szMsg, "Error Number is %08X --*GetRequest*---", dwError);
DumpLog("snmpmonitor-request", szMsg, nlen);
}
return nResult;
}
int CSVBaseSNMP::GetBulkRequest(MonitorResult &ResultList)
{
WriteLog("\n\n*****************************");
WriteLog("GetBulkRequest!");
static const int BULK_BUFF = 10;
int nResult = 0;
char chPrvOID[MAX_BUFF_LEN] = {0};
bool bEnd = false;
Pdu pdu; // construct a Pdu object
Vb vb; // construct a Vb object
vb.set_oid( oid); // set the Oid portion of the Vb
pdu += vb; // add the vb to the Pdu
SnmpTarget *target;
if(version ==version3)
{//If SNMP Version Is 3
nResult = InitUTarget(); //Init UTarget
pdu.set_security_level( m_lSecurityLevel); //Set the Security Level portion of Pdu
pdu.set_context_name (m_szContextName); //Set the Context Name portion of Pdu
pdu.set_context_engine_id(m_szContextEngineID); //Set the Context Engine ID portion of Pdu
target = &m_Utarget; //Set SNMP Target
}
else
{
target = &m_Ctarget; //Set SNMP Target
}
try
{
if(m_pSnmp)
{
int nIndex = 0, i = 0;
while (( nResult = m_pSnmp->get_bulk(pdu, *target, 0, BULK_BUFF)) == SNMP_CLASS_SUCCESS)
{
if(bEnd)
break;
for (i = 0; i < pdu.get_vb_count(); i ++)
{
pdu.get_vb( vb, i);
if (pdu.get_type() == REPORT_MSG)
{
Oid tmp;
vb.get_oid(tmp);
return -5;
}
// look for var bind exception, applies to v2 only
if ( vb.get_syntax() != sNMP_SYNTAX_ENDOFMIBVIEW)
{
string szOID = vb.get_printable_oid();
WriteLog(szOID.c_str());
int nPosition = static_cast<int>(szOID.find(m_szStartID));
if(nPosition < 0)
{
bEnd = true;
break;
}
if(static_cast<int>(strlen(chPrvOID)) > 0)
{//如果上次OID不为空
if(strcmp(vb.get_printable_oid(), chPrvOID) == 0)
{//比较OID名称是否相同，相同则退出循环
bEnd = true;
break;
}
}
//结果赋值
if(static_cast<int>(strlen(vb.get_printable_oid())) < MAX_BUFF_LEN)
strcpy(chPrvOID, vb.get_printable_oid());
SNMP_Monitor_Result result;
result.m_szOID = vb.get_printable_oid();
if(strcmp(result.m_szOID.substr(0,19).c_str(),"1.3.6.1.2.1.2.2.1.2")==0)
{
char str[100];
vb.get_value(str);
result.m_szValue=str;
WriteLog(str);
}
else
result.m_szValue = vb.get_printable_value();
//nPosition = static_cast<int>(result.m_szOID.find(m_szStartID.c_str()) + m_szStartID.length());
//if(nPosition > 0)
//{
result.m_szIndex = result.m_szOID.substr(m_szStartID.length() + 1);
result.m_szOID = result.m_szOID.substr(0, m_szStartID.length());
//PrintDebugString("index is " + result.m_szIndex);
//}
WriteLog(result.m_szIndex.c_str());
WriteLog(result.m_szValue.c_str());
ResultList[nIndex] = result;
nIndex ++;
}
else
{
m_szErrorMsg = "End of MIB Reached";
return -4;
}
}
// last vb becomes seed of next rquest
pdu.set_vblist(&vb, 1);
}
}
}
catch(...)
{
DWORD dwError = GetLastError();
char szMsg[512] = {0};
int nlen = sprintf(szMsg, "Error Number is %08X --*GetBulkRequest*---", dwError);
DumpLog("snmpmonitor-bulk.log", szMsg, nlen);
}
if(nResult == SNMP_ERROR_NO_SUCH_NAME)
{
nResult = 0;
}
return nResult;
}
int wpdu::set_trap_info(snmp_pdu *raw_pdu, const Pdu& pdu) const
{
Oid enterprise;
Oid trapid; // validate caller has set this correctly
pdu.get_notify_id( trapid);
if ( !trapid.valid() || trapid.length() < 2 ) {
cmu_snmp::free_pdu( raw_pdu);
return SNMP_CLASS_INVALID_NOTIFYID;
}
raw_pdu->specific_type=0;
// TODO: object should emit numeric instead of this kind of mess...
if ( trapid == coldStart)
raw_pdu->trap_type = V1_COLD_START; // cold start
else if ( trapid == warmStart)
raw_pdu->trap_type = V1_WARM_START; // warm start
else if( trapid == linkDown)
raw_pdu->trap_type = V1_LINK_DOWN; // link down
else if ( trapid == linkUp)
raw_pdu->trap_type = V1_LINK_UP; // link up
else if ( trapid == authenticationFailure )
raw_pdu->trap_type = V1_AUTH_FAILURE; // authentication failure
else if ( trapid == egpNeighborLoss)
raw_pdu->trap_type = V1_EGP_NEIGHBOR_LOSS; // egp neighbor loss
else {
raw_pdu->trap_type = V1_ENT_SPECIFIC; // enterprise specific
// last oid subid is the specific value
// if 2nd to last subid is "0", remove it
// enterprise is always the notify oid prefix
raw_pdu->specific_type = (int) trapid[(int) (trapid.length() - 1)];
trapid.trim(1);
if ( trapid[(int)(trapid.length() - 1)] == 0 )
trapid.trim(1);
enterprise = trapid;
}
if ( raw_pdu->trap_type != V1_ENT_SPECIFIC)
pdu.get_notify_enterprise( enterprise);
if ( enterprise.length() > 0) {
// note!! To the contrary, enterprise OID val is
// copied here and raw_pdu->enterprise is freed in free_pdu
// as it should be (HDN)
// these are hooks into an SNMP++ oid
// and therefor the raw_pdu enterprise
// should not free them. null them out!!
SmiLPOID rawOid;
rawOid = enterprise.oidval();
// HDN - enterprise is a local object, cannot simply assign pointer
//raw_pdu->enterprise = rawOid->ptr;
raw_pdu->enterprise_length = (int) rawOid->len;
ACE_NEW_RETURN(raw_pdu->enterprise,
oid[raw_pdu->enterprise_length],-1);
ACE_OS::memcpy((char *)raw_pdu->enterprise,(char *)rawOid->ptr,
raw_pdu->enterprise_length * sizeof(oid));
}
TimeTicks timestamp;
pdu.get_notify_timestamp( timestamp);
raw_pdu->time = ( unsigned long) timestamp;
// HDN - set agent addr using the local hostname if possible
char localHostName[MAXHOSTNAMELEN];
Snmp::get_host_name(localHostName, MAXHOSTNAMELEN);
if (ACE_OS::strlen(localHostName) > 0) {
GenAddress addr(localHostName);
OctetStr octet;
addr.to_octet(octet);
ACE_OS::memcpy(&(raw_pdu->agent_addr.sin_addr),
octet.data(),
octet.length());
}
return 0;
}
int CSNMPMessage::SetPdu(const int reason, const Pdu &pdu,
const UdpAddress &fromaddress)
{
if (Pdu::match_type(m_pdu.get_type(), pdu.get_type()) == false)
{
LOG_BEGIN(INFO_LOG | 1);
LOG("MsgQueue: Response pdu type does not match, pdu is ignored: (id) (type1) (type2)");
LOG(m_uniqueId);
LOG(m_pdu.get_type());
LOG(pdu.get_type());
LOG_END;
return -1;
}
unsigned short orig_type = m_pdu.get_type();
if (m_received)
{
LOG_BEGIN(WARNING_LOG | 1);
LOG("MsgQueue: Message is already marked as received (id) (reason) (new reason)");
LOG(m_uniqueId);
LOG(reason);
LOG(m_reason);
LOG_END;
// TODO: better check based on error codes
if (reason || !m_reason)
{
LOG_BEGIN(WARNING_LOG | 1);
LOG("MsgQueue: ignoring the second pdu");
LOG_END;
return 0;
}
}
m_received = 1;
m_pdu = pdu;
m_reason = reason;
if ((orig_type == sNMP_PDU_INFORM) &&
(m_pdu.get_type() == sNMP_PDU_RESPONSE))
{
// remove the first two vbs of the pdu if sysUpTime and notify_id
if (m_pdu.get_vb_count() < 2)
return 0;
const Vb &vb1 = m_pdu.get_vb(0);
if (vb1.get_syntax() != sNMP_SYNTAX_TIMETICKS) return 0;
if (vb1.get_oid() != SNMP_MSG_OID_SYSUPTIME) return 0;
const Vb &vb2 = m_pdu.get_vb(1);
if (vb2.get_syntax() != sNMP_SYNTAX_OID) return 0;
if (vb2.get_oid() != SNMP_MSG_OID_TRAPID) return 0;
TimeTicks timeticks;
Oid oid;
vb1.get_value(timeticks);
m_pdu.set_notify_timestamp(timeticks);
vb2.get_value(oid);
m_pdu.set_notify_id(oid);
m_pdu.delete_vb(1);
m_pdu.delete_vb(0);
}
return 0;
}
int main(int argc, char **argv)
{
//---------[ check the arg count ]----------------------------------------
if ( argc < 2) {
cout << "Usage:\n";
cout << argv[0] << " IpAddress | DNSName [Oid] [options]\n";
cout << "Oid: sysDescr object is default\n";
cout << "options: -vN , use SNMP version 1, 2 or 3, default is 1\n";
cout << " -PPort , remote port to use\n";
cout << " -CCommunity_name, specify community default is 'public' \n";
cout << " -rN , retries default is N = 1 retry\n";
cout << " -tN , timeout in hundredths of seconds; default is N = 100\n";
#ifdef _SNMPv3
cout << " -snSecurityName, " << endl;
cout << " -slN , securityLevel to use, default N = 3 = authPriv" << endl;
cout << " -smN , securityModel to use, only default N = 3 = USM possible\n";
cout << " -cnContextName, default empty string" << endl;
cout << " -ceContextEngineID, as hex e.g. 800007E580, default empty string" << endl;
cout << " -authPROT, use authentication protocol NONE, SHA or MD5\n";
cout << " -privPROT, use privacy protocol NONE, DES, 3DESEDE, IDEA, AES128, AES192 or AES256\n";
cout << " -uaAuthPassword\n";
cout << " -upPrivPassword\n";
#endif
return 1;
}
Snmp::socket_startup(); // Initialize socket subsystem
//---------[ make a GenAddress and Oid object to retrieve ]---------------
UdpAddress address( argv[1]); // make a SNMP++ Generic address
if ( !address.valid()) { // check validity of address
cout << "Invalid Address or DNS Name, " << argv[1] << "\n";
return 1;
}
Oid oid("1.3.6.1.2.1.1.1"); // default is sysDescr
if ( argc >= 3) { // if 3 args, then use the callers Oid
if ( strstr( argv[2],"-")==0) {
oid = argv[2];
if ( !oid.valid()) { // check validity of user oid
cout << "Invalid Oid, " << argv[2] << "\n";
return 1;
}
}
}
//---------[ determine options to use ]-----------------------------------
snmp_version version=version1; // default is v1
int retries=1; // default retries is 1
int timeout=100; // default is 1 second
u_short port=161; // default snmp port is 161
OctetStr community("public"); // community name
#ifdef _SNMPv3
OctetStr privPassword("");
OctetStr authPassword("");
OctetStr securityName("");
int securityModel = SecurityModel_USM;
int securityLevel = SecurityLevel_authPriv;
OctetStr contextName("");
OctetStr contextEngineID("");
long authProtocol = SNMPv3_usmNoAuthProtocol;
long privProtocol = SNMPv3_usmNoPrivProtocol;
v3MP *v3_MP;
#endif
char *ptr;
for(int x=1; x<argc; x++) { // parse for version
if ( strstr( argv[x],"-v2")!= 0) {
version = version2c;
continue;
}
if ( strstr( argv[x],"-r")!= 0) { // parse for retries
ptr = argv[x];
ptr++;
ptr++;
retries = atoi(ptr);
if (( retries<0)|| (retries>5)) retries=1;
continue;
}
if ( strstr( argv[x], "-t")!=0) { // parse for timeout
ptr = argv[x];
ptr++;
ptr++;
timeout = atoi( ptr);
if (( timeout < 100)||( timeout>500)) timeout=100;
continue;
}
if ( strstr( argv[x],"-C")!=0) {
ptr = argv[x];
ptr++;
ptr++;
community = ptr;
continue;
}
if ( strstr( argv[x],"-P")!=0) {
ptr = argv[x];
ptr++;
ptr++;
sscanf(ptr, "%hu", &port);
continue;
}
#ifdef _SNMPv3
if ( strstr( argv[x],"-v3")!= 0) {
version = version3;
continue;
}
if ( strstr( argv[x],"-auth") != 0) {
ptr = argv[x];
ptr+=5;
if (strcasecmp(ptr, "SHA") == 0)
authProtocol = SNMP_AUTHPROTOCOL_HMACSHA;
else if (strcasecmp(ptr, "MD5") == 0)
authProtocol = SNMP_AUTHPROTOCOL_HMACMD5;
else
authProtocol = SNMP_AUTHPROTOCOL_NONE;
continue;
}
if ( strstr( argv[x],"-priv") != 0) {
ptr = argv[x];
ptr+=5;
if (strcasecmp(ptr, "DES") == 0)
privProtocol = SNMP_PRIVPROTOCOL_DES;
else if (strcasecmp(ptr, "3DESEDE") == 0)
privProtocol = SNMP_PRIVPROTOCOL_3DESEDE;
else if (strcasecmp(ptr, "IDEA") == 0)
privProtocol = SNMP_PRIVPROTOCOL_IDEA;
else if (strcasecmp(ptr, "AES128") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES128;
else if (strcasecmp(ptr, "AES192") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES192;
else if (strcasecmp(ptr, "AES256") == 0)
privProtocol = SNMP_PRIVPROTOCOL_AES256;
else
privProtocol = SNMP_PRIVPROTOCOL_NONE;
printf("\n\nPrivProt : %ld\n", privProtocol);
continue;
}
if ( strstr( argv[x],"-sn")!=0) {
ptr = argv[x];
ptr+=3;
securityName = ptr;
continue;
}
if ( strstr( argv[x], "-sl")!=0) {
ptr = argv[x];
ptr+=3;
securityLevel = atoi( ptr);
if (( securityLevel < SecurityLevel_noAuthNoPriv) ||
( securityLevel > SecurityLevel_authPriv))
securityLevel = SecurityLevel_authPriv;
continue;
}
if ( strstr( argv[x], "-sm")!=0) {
ptr = argv[x];
ptr+=3;
securityModel = atoi( ptr);
if (( securityModel < SecurityModel_v1) ||
( securityModel > SecurityModel_USM))
securityModel = SecurityModel_USM;
continue;
}
if ( strstr( argv[x],"-cn")!=0) {
ptr = argv[x];
ptr+=3;
contextName = ptr;
continue;
}
if ( strstr( argv[x],"-ce")!=0) {
ptr = argv[x];
ptr+=3;
contextEngineID = OctetStr::from_hex_string(ptr);
continue;
}
if ( strstr( argv[x],"-ua")!=0) {
ptr = argv[x];
ptr+=3;
authPassword = ptr;
continue;
}
if ( strstr( argv[x],"-up")!=0) {
ptr = argv[x];
ptr+=3;
privPassword = ptr;
continue;
}
#endif
}
//----------[ create a SNMP++ session ]-----------------------------------
int status;
// bind to any port and use IPv6 if needed
Snmp snmp(status, 0, (address.get_ip_version() == Address::version_ipv6));
if ( status != SNMP_CLASS_SUCCESS) {
cout << "SNMP++ Session Create Fail, " << snmp.error_msg(status) << "\n";
return 1;
}
//---------[ init SnmpV3 ]--------------------------------------------
#ifdef _SNMPv3
if (version == version3) {
char *engineId = "snmpNextAsync";
char *filename = "snmpv3_boot_counter";
unsigned int snmpEngineBoots = 0;
int status;
status = getBootCounter(filename, engineId, snmpEngineBoots);
if ((status != SNMPv3_OK) && (status < SNMPv3_FILEOPEN_ERROR))
{
cout << "Error loading snmpEngineBoots counter: " << status << endl;
return 1;
}
snmpEngineBoots++;
status = saveBootCounter(filename, engineId, snmpEngineBoots);
if (status != SNMPv3_OK)
{
cout << "Error saving snmpEngineBoots counter: " << status << endl;
return 1;
}
int construct_status;
v3_MP = new v3MP(engineId, snmpEngineBoots, construct_status);
USM *usm = v3_MP->get_usm();
usm->add_usm_user(securityName,
authProtocol, privProtocol,
authPassword, privPassword);
}
else
{
// MUST create a dummy v3MP object if _SNMPv3 is enabled!
int construct_status;
v3_MP = new v3MP("dummy", 0, construct_status);
}
#endif
//--------[ build up SNMP++ object needed ]-------------------------------
Pdu pdu; // construct a Pdu object
Vb vb; // construct a Vb object
vb.set_oid( oid); // set the Oid portion of the Vb
pdu += vb; // add the vb to the Pdu
address.set_port(port);
CTarget ctarget( address); // make a target using the address
#ifdef _SNMPv3
UTarget utarget( address);
if (version == version3) {
utarget.set_version( version); // set the SNMP version SNMPV1 or V2 or V3
utarget.set_retry( retries); // set the number of auto retries
utarget.set_timeout( timeout); // set timeout
utarget.set_security_model( securityModel);
utarget.set_security_name( securityName);
pdu.set_security_level( securityLevel);
pdu.set_context_name (contextName);
pdu.set_context_engine_id(contextEngineID);
}
else {
#endif
ctarget.set_version( version); // set the SNMP version SNMPV1 or V2
ctarget.set_retry( retries); // set the number of auto retries
ctarget.set_timeout( timeout); // set timeout
ctarget.set_readcommunity( community); // set the read community name
#ifdef _SNMPv3
}
#endif
//-------[ issue the request, blocked mode ]-----------------------------
cout << "SNMP++ GetNext to " << argv[1] << " SNMPV"
#ifdef _SNMPv3
<< ((version==version3) ? (version) : (version+1))
#else
<< (version+1)
#endif
<< " Retries=" << retries
<< " Timeout=" << timeout * 10 <<"ms";
#ifdef _SNMPv3
if (version == version3)
cout << endl
<< "securityName= " << securityName.get_printable()
<< ", securityLevel= " << securityLevel
<< ", securityModel= " << securityModel << endl
<< "contextName= " << contextName.get_printable()
<< ", contextEngineID= " << contextEngineID.get_printable()
<< endl;
else
#endif
cout << " Community=" << community.get_printable() << endl << flush;
SnmpTarget *target;
#ifdef _SNMPv3
if (version == version3)
target = &utarget;
else
#endif
target = &ctarget;
status = snmp.get_next( pdu, *target, callback,NULL);
if (status == SNMP_CLASS_SUCCESS)
{
cout << "Async GetNext Request sent." << endl;
}
else
cout << "SNMP++ GetNext Error, " << snmp.error_msg( status)
<< " (" << status <<")" << endl ;
for (int t=1; t<=10; t++)
{
snmp.eventListHolder->SNMPProcessPendingEvents();
#ifdef WIN32
Sleep(1000);
#else
sleep(1);
#endif
}
Snmp::socket_cleanup(); // Shut down socket subsystem
}