hi all,
I did the following settings for authpriv user from program. (Iam
sending the code also) when iam compiling and running the following code iam
getting the error like snmpget: Unsupported security level. Please help me why
this error is coming. Iam not getting how to debug it.
if(securityLevel == AUTHPRIV)
{
auth_Pass_Phrase = authUserPasswd.c_str();
priv_Pass_Phrase = privUserPasswd.c_str();
//Initialize the SNMP library
init_snmp("snmpget");
//Initialize a "session" that defines who we're going to talk to
snmp_sess_init( &session );
//set the SNMPv3 user name */
session.securityName = (char*)authUserName.c_str();
session.securityNameLen = strlen(session.securityName);
/* set the security level to authenticated, but not encrypted */
session.securityLevel = SNMP_SEC_LEVEL_AUTHPRIV;
session.contextName = (char*)contextName.c_str();
session.contextNameLen = strlen(session.contextName);
session.contextEngineID = (u_char*)contextId.c_str();
session.contextEngineIDLen =
strlen((char*)session.contextEngineID);
/* set the authentication method to MD5 */
if(authProtocol == MD5)
{
session.securityAuthProto = usmHMACMD5AuthProtocol;
}
session.securityAuthProtoLen =
sizeof(usmHMACMD5AuthProtocol)/sizeof(oid);
session.securityAuthKeyLen = USM_AUTH_KU_LEN;
if(privProtocol == DES)
{
session.securityPrivProto = usmDESPrivProtocol;
}
session.securityPrivProtoLen =
USM_PRIV_PROTO_DES_LEN;//sizeof(usmAESPrivProtocol)/sizeof(oid);
session.securityPrivKeyLen = USM_AUTH_KU_LEN;
size_t privPasswdLen = strlen(priv_Pass_Phrase);
/* set the authentication key to a MD5 hashed version of our
passphrase "The Net-SNMP Demo Password" (which must be at least
8
characters long) */
if (generate_Ku(session.securityAuthProto,
session.securityAuthProtoLen,
(u_char *) auth_Pass_Phrase, strlen(auth_Pass_Phrase),
session.securityAuthKey, &session.securityAuthKeyLen) != SNMPERR_SUCCESS)
{
snmp_perror("snmpGet");
snmp_log(LOG_ERR, "Error generating Ku from
authentication pass
phrase. \n");
logger->log(NORMAL,"SnmpError: Error generating Ku from
authentication pass
phrase.");
exit(1);
}
if (generate_Ku(session.securityAuthProto,
session.securityAuthProtoLen,
(u_char *) priv_Pass_Phrase, strlen(priv_Pass_Phrase),
session.securityPrivKey, &session.securityPrivKeyLen) !=
SNMPERR_SUCCESS)
{
snmp_perror("snmpGet");
snmp_log(LOG_ERR, "Error generating Ku from
authentication pass
phrase. \n");
logger->log(NORMAL,"SnmpError: Error generating Ku from
authentication pass
phrase.");
exit(1);
}
--
With Regards,
Ravi Kumar K.
Research Engineer,
NMS Group,
C-DOT, Bangalore-100.
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