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/* Copyright (C) 2018-2019 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
// written by Pierre Chifflier <chifflier@wzdftpd.net>
use crate::jsonbuilder::{JsonBuilder, JsonError};
use crate::snmp::snmp::SNMPTransaction;
use crate::snmp::snmp_parser::{NetworkAddress,PduType};
use std::borrow::Cow;
fn str_of_pdu_type(t:&PduType) -> Cow<str> {
match t {
&PduType::GetRequest => Cow::Borrowed("get_request"),
&PduType::GetNextRequest => Cow::Borrowed("get_next_request"),
&PduType::Response => Cow::Borrowed("response"),
&PduType::SetRequest => Cow::Borrowed("set_request"),
&PduType::TrapV1 => Cow::Borrowed("trap_v1"),
&PduType::GetBulkRequest => Cow::Borrowed("get_bulk_request"),
&PduType::InformRequest => Cow::Borrowed("inform_request"),
&PduType::TrapV2 => Cow::Borrowed("trap_v2"),
&PduType::Report => Cow::Borrowed("report"),
x => Cow::Owned(format!("Unknown(0x{:x})", x.0)),
}
}
fn snmp_log_response(jsb: &mut JsonBuilder, tx: &mut SNMPTransaction) -> Result<(), JsonError>
{
jsb.set_uint("version", tx.version as u64)?;
if tx.encrypted {
jsb.set_string("pdu_type", "encrypted")?;
} else {
if let Some(ref info) = tx.info {
jsb.set_string("pdu_type", &str_of_pdu_type(&info.pdu_type))?;
if info.err.0 != 0 {
jsb.set_string("error", &format!("{:?}", info.err))?;
}
if let Some((trap_type, ref oid, address)) = info.trap_type {
jsb.set_string("trap_type", &format!("{:?}", trap_type))?;
jsb.set_string("trap_oid", &oid.to_string())?;
match address {
NetworkAddress::IPv4(ip) => {jsb.set_string("trap_address", &ip.to_string())?;},
}
}
if !info.vars.is_empty() {
jsb.open_array("vars")?;
for var in info.vars.iter() {
jsb.append_string(&var.to_string())?;
}
jsb.close()?;
}
}
if let Some(community) = &tx.community {
jsb.set_string("community", community)?;
}
if let Some(usm) = &tx.usm {
jsb.set_string("usm", usm)?;
}
}
return Ok(());
}
#[no_mangle]
pub extern "C" fn rs_snmp_log_json_response(jsb: &mut JsonBuilder, tx: &mut SNMPTransaction) -> bool
{
snmp_log_response(jsb, tx).is_ok()
}
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