security model

Hi all !!!



I have the next code to open an SNMP session. I am doubting about the 
security model I am using. Is it SBSM or USM? Is SBSM implemented yet?



Thanks a lot.



Gemma S Anton



netsnmp_session *abre_sesion (char *IP_agente)

{

      FILE *flog;

      netsnmp_session *psesion;

      netsnmp_session sesion;



      init_snmp("centrodecontrol"); // Inicializa la librería NET-SNMP.

      snmp_sess_init(&sesion);     // *sesion* guarda todos los datos de la 
sesion.

      sesion.peername = strdup(IP_agente);     // Extremo con el que se 
establece.

      sesion.version=SNMP_VERSION_3;           // Version 3 de SNMP.

      sesion.securityName = strdup(USRSIMSNMP);      // Nombre del usuario.

      sesion.securityNameLen = strlen(sesion.securityName);      // Longitud 
del nombre.

      sesion.securityLevel = SNMP_SEC_LEVEL_AUTHNOPRIV;    // Nivel de 
seguridad.

      sesion.securityAuthProto = usmHMACMD5AuthProtocol;   // Protocolo de 
seguridad MD5.

      sesion.securityAuthProtoLen = 
sizeof(usmHMACMD5AuthProtocol)/sizeof(oid);

      sesion.securityAuthKeyLen = USM_AUTH_KU_LEN;

      if (  generate_Ku(      sesion.securityAuthProto,

                        sesion.securityAuthProtoLen,

                        (u_char *) PWDSIMSNMP,

                        strlen(PWDSIMSNMP),

                        sesion.securityAuthKey,

                        &sesion.securityAuthKeyLen) != SNMPERR_SUCCESS)

      {

                  psesion = NULL;

      }

      else

      {

            SOCK_STARTUP;

            psesion = snmp_open(&sesion);

      }

      return psesion;

}


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