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function format_snmp_val(tag: count, s: string): string
{
return fmt(" value (tag=0x%02x): %s", tag, s);
}
function print_snmp_value(val: SNMP::ObjectValue)
{
switch ( val$tag ) {
case SNMP::OBJ_OID_TAG:
print format_snmp_val(val$tag, fmt("%s", val$oid));
break;
case SNMP::OBJ_INTEGER_TAG:
print format_snmp_val(val$tag, fmt("%s", val$signed));
break;
case SNMP::OBJ_COUNTER32_TAG,
SNMP::OBJ_UNSIGNED32_TAG,
SNMP::OBJ_TIMETICKS_TAG,
SNMP::OBJ_COUNTER64_TAG:
print format_snmp_val(val$tag, fmt("%s", val$unsigned));
break;
case SNMP::OBJ_IPADDRESS_TAG:
print format_snmp_val(val$tag, fmt("%s", val$address));
break;
case SNMP::OBJ_OCTETSTRING_TAG,
SNMP::OBJ_OPAQUE_TAG:
print format_snmp_val(val$tag, fmt("%s", val$octets));
break;
case SNMP::OBJ_UNSPECIFIED_TAG:
print format_snmp_val(val$tag, fmt("%s", "<unspecified>"));
break;
case SNMP::OBJ_NOSUCHOBJECT_TAG:
print format_snmp_val(val$tag, fmt("%s", "<no such object>"));
break;
case SNMP::OBJ_NOSUCHINSTANCE_TAG:
print format_snmp_val(val$tag, fmt("%s", "<no such instance>"));
break;
case SNMP::OBJ_ENDOFMIBVIEW_TAG:
print format_snmp_val(val$tag, fmt("%s", "<end of mib view>"));
break;
default:
print format_snmp_val(val$tag, "<unknown>");
break;
}
}
function print_snmp_binding(binding: SNMP::Binding)
{
print fmt(" oid: %s", binding$oid);
print_snmp_value(binding$value);
}
function print_snmp_bindings(bindings: SNMP::Bindings)
{
for ( i in bindings )
print_snmp_binding(bindings[i]);
}
function print_snmp_pdu(pdu: SNMP::PDU)
{
print fmt(" request_id: %s", pdu$request_id);
print fmt(" error_stat: %s", pdu$error_status);
print fmt(" error_idx: %s", pdu$error_index);
print_snmp_bindings(pdu$bindings);
}
function print_snmp_trap_pdu(pdu: SNMP::TrapPDU)
{
print fmt(" enterprise: %s", pdu$enterprise);
print fmt(" agent: %s", pdu$agent);
print fmt(" generic_trap: %s", pdu$generic_trap);
print fmt(" specific_trap: %s", pdu$specific_trap);
print fmt(" time_stamp: %s", pdu$time_stamp);
print_snmp_bindings(pdu$bindings);
}
function print_snmp_bulk_pdu(pdu: SNMP::BulkPDU)
{
print fmt(" request_id: %s", pdu$request_id);
print fmt(" non_repeaters: %s", pdu$non_repeaters);
print fmt(" max_repititions: %s", pdu$max_repititions);
print_snmp_bindings(pdu$bindings);
}
function print_snmp_conn(c: connection, is_orig: bool)
{
print fmt(" %s", c$id);
print fmt(" is_orig: %s", is_orig);
}
function print_snmp_header(header: SNMP::Header)
{
switch ( header$version ) {
case 0:
print fmt(" %s", header$v1);
break;
case 1:
print fmt(" %s", header$v2);
break;
case 3:
print fmt(" %s", header$v3);
break;
default:
break;
}
}
function print_snmp(msg: string, c: connection, is_orig: bool,
header: SNMP::Header, pdu: SNMP::PDU)
{
print msg;
print_snmp_conn(c, is_orig);
print_snmp_header(header);
print_snmp_pdu(pdu);
}
event snmp_get_request(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_get_request", c, is_orig, header, pdu);
}
event snmp_get_next_request(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_get_request", c, is_orig, header, pdu);
}
event snmp_response(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_response", c, is_orig, header, pdu);
}
event snmp_set_request(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_set_request", c, is_orig, header, pdu);
}
event snmp_trap(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::TrapPDU)
{
print "snmp_trap";
print_snmp_conn(c, is_orig);
print_snmp_header(header);
print_snmp_trap_pdu(pdu);
}
event snmp_get_bulk_request(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::BulkPDU)
{
print "snmp_get_bulk_request";
print_snmp_conn(c, is_orig);
print_snmp_header(header);
print_snmp_bulk_pdu(pdu);
}
event snmp_inform_request(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_inform_request", c, is_orig, header, pdu);
}
event snmp_trapV2(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_trapv2", c, is_orig, header, pdu);
}
event snmp_report(c: connection, is_orig: bool, header: SNMP::Header, pdu: SNMP::PDU)
{
print_snmp("snmp_report", c, is_orig, header, pdu);
}
event snmp_unknown_pdu(c: connection, is_orig: bool, header: SNMP::Header, tag: count)
{
print "snmp_unknown_pdu";
print_snmp_conn(c, is_orig);
print_snmp_header(header);
print fmt(" tag: %s", tag);
}
event snmp_unknown_scoped_pdu(c: connection, is_orig: bool, header: SNMP::Header, tag: count)
{
print "snmp_unknown_scoped_pdu";
print_snmp_conn(c, is_orig);
print_snmp_header(header);
print fmt(" tag: %s", tag);
}
event snmp_encrypted_pdu(c: connection, is_orig: bool, header: SNMP::Header)
{
print "snmp_encrypted_pdu";
print_snmp_conn(c, is_orig);
print_snmp_header(header);
}
event snmp_unknown_header_version(c: connection, is_orig: bool, version: count)
{
print "snmp_unknown_header_version";
print_snmp_conn(c, is_orig);
print fmt(" version %s", version);
}
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