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alertracker.h
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alertracker.h
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/*
This file is part of Kismet
Kismet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kismet 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
along with Kismet; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __ALERTRACKER_H__
#define __ALERTRACKER_H__
#include "config.h"
#include <stdio.h>
#include <time.h>
#include <list>
#include <map>
#include <vector>
#include <algorithm>
#include <string>
#include "eventbus.h"
#include "globalregistry.h"
#include "kis_gps.h"
#include "kis_mutex.h"
#include "kis_net_beast_httpd.h"
#include "messagebus.h"
#include "packetchain.h"
#include "timetracker.h"
#ifdef PRELUDE
#include <libprelude/prelude.hxx>
#define PRELUDE_ANALYZER_NAME "Kismet"
#define PRELUDE_ANALYZER_MODEL "Kismet"
#define PRELUDE_ANALYZER_CLASS "WIDS"
#define PRELUDE_ANALYZER_MANUFACTURER "https://www.kismetwireless.net"
#endif
// Alert severity categories
enum class kis_alert_severity {
info = 0,
low = 5,
medium = 10,
high = 15,
critical = 20,
};
static kis_alert_severity int_to_alert_severity(unsigned int i) {
switch (i) {
case static_cast<unsigned int>(kis_alert_severity::info):
return kis_alert_severity::info;
case static_cast<unsigned int>(kis_alert_severity::low):
return kis_alert_severity::low;
case static_cast<unsigned int>(kis_alert_severity::medium):
return kis_alert_severity::medium;
case static_cast<unsigned int>(kis_alert_severity::high):
return kis_alert_severity::high;
case static_cast<unsigned int>(kis_alert_severity::critical):
return kis_alert_severity::critical;
default:
throw std::runtime_error("unknown severity level");
}
throw std::runtime_error("unknown severity level");
}
// TODO:
// - move packet_component to a tracked system & just use the converted
// kis_alert_info in the future...
// - Move alert_ref into a tracked component and return via rest
// - Add description to alerts
class kis_alert_info : public packet_component {
public:
kis_alert_info() {
tm.tv_sec = 0;
tm.tv_usec = 0;
channel = "0";
gps = NULL;
}
virtual ~kis_alert_info() { }
device_key devicekey;
std::string header;
std::string alertclass;
unsigned int severity;
int phy;
struct timeval tm;
mac_addr bssid;
mac_addr source;
mac_addr dest;
mac_addr other;
std::string channel;
std::string text;
std::shared_ptr<kis_gps_packinfo> gps;
};
class kis_alert_component : public packet_component {
public:
kis_alert_component() { }
std::vector<std::shared_ptr<kis_alert_info>> alert_vec;
};
class tracked_alert : public tracker_component {
public:
tracked_alert() :
tracker_component() {
register_fields();
reserve_fields(NULL);
}
tracked_alert(int in_id) :
tracker_component(in_id) {
register_fields();
reserve_fields(NULL);
}
tracked_alert(int in_id, std::shared_ptr<tracker_element_map> e) :
tracker_component(in_id) {
register_fields();
reserve_fields(e);
}
tracked_alert(int in_id, std::shared_ptr<kis_alert_info> info) :
tracker_component(in_id) {
register_fields();
reserve_fields(NULL);
from_alert_info(info);
}
tracked_alert(int in_id, kis_alert_info *info) :
tracker_component(in_id) {
register_fields();
reserve_fields(NULL);
from_alert_info(info);
}
virtual uint32_t get_signature() const override {
return adler32_checksum("tracked_alert");
}
virtual std::shared_ptr<tracker_element> clone_type() override {
using this_t = typename std::remove_pointer<decltype(this)>::type;
auto r = std::make_shared<this_t>();
r->set_id(this->get_id());
return r;
}
__Proxy(devicekey, device_key, device_key, device_key, devicekey);
__Proxy(header, std::string, std::string, std::string, header);
__Proxy(alertclass, std::string, std::string, std::string, alertclass);
__Proxy(severity, uint8_t, uint8_t, uint8_t, severity);
__Proxy(hash, uint32_t, uint32_t, uint32_t, hash);
__Proxy(phy, uint32_t, uint32_t, uint32_t, phy);
__Proxy(timestamp, double, double, double, timestamp);
__Proxy(transmitter_mac, mac_addr, mac_addr, mac_addr, transmitter_mac);
__Proxy(source_mac, mac_addr, mac_addr, mac_addr, source_mac);
__Proxy(dest_mac, mac_addr, mac_addr, mac_addr, dest_mac);
__Proxy(other_mac, mac_addr, mac_addr, mac_addr, other_mac);
__Proxy(channel, std::string, std::string, std::string, channel);
__Proxy(frequency, double, double, double, frequency);
__Proxy(text, std::string, std::string, std::string, text);
__ProxyTrackable(location, kis_tracked_location_triplet, location);
void from_alert_info(std::shared_ptr<kis_alert_info> info) {
from_alert_info(info.get());
}
void from_alert_info(kis_alert_info *info) {
set_devicekey(info->devicekey);
set_header(info->header);
set_alertclass(info->alertclass);
set_severity(info->severity);
set_phy(info->phy);
set_timestamp(ts_to_double(info->tm));
set_transmitter_mac(info->bssid);
set_source_mac(info->source);
set_dest_mac(info->dest);
set_other_mac(info->other);
set_channel(info->channel);
set_text(info->text);
// calculate hash from some attributes that should be, in total, unique
set_hash(adler32_checksum(fmt::format("{} {} {} {} {} {} {} {} {}",
get_header(), get_severity(), get_phy(), get_timestamp(),
get_transmitter_mac(), get_source_mac(), get_dest_mac(),
get_other_mac(), get_channel())));
if (info->gps != NULL)
location->set(info->gps);
}
protected:
virtual void register_fields() override {
tracker_component::register_fields();
register_field("kismet.alert.device_key", "Device key of linked device", &devicekey);
register_field("kismet.alert.header", "Alert definition", &header);
register_field("kismet.alert.class", "Alert class", &alertclass);
register_field("kismet.alert.hash", "Alert unique hash", &hash);
auto sev_id =
register_field("kismet.alert.severity", "Alert severity", &severity);
Globalreg::globalreg->entrytracker->register_search_xform(sev_id,
[](std::shared_ptr<tracker_element> elem, std::string& xform) {
auto sev = int_to_alert_severity(get_tracker_value<uint8_t>(elem));
switch (sev) {
case kis_alert_severity::info:
xform = "INFO";
break;
case kis_alert_severity::low:
xform = "LOW";
break;
case kis_alert_severity::medium:
xform = "MEDIUM";
break;
case kis_alert_severity::high:
xform = "HIGH";
break;
case kis_alert_severity::critical:
xform = "CRITICAL";
break;
default:
break;
}
});
register_field("kismet.alert.phy_id", "ID of phy generating alert", &phy);
register_field("kismet.alert.timestamp", "Timestamp (sec.ms)", ×tamp);
register_field("kismet.alert.transmitter_mac", "Transmitter MAC address", &transmitter_mac);
register_field("kismet.alert.source_mac", "Source MAC address", &source_mac);
register_field("kismet.alert.dest_mac", "Destination MAC address", &dest_mac);
register_field("kismet.alert.other_mac", "Other / Extra MAC address", &other_mac);
register_field("kismet.alert.channel", "Phy-specific channel", &channel);
register_field("kismet.alert.frequency", "Frequency (khz)", &frequency);
register_field("kismet.alert.text", "Alert text", &text);
register_field("kismet.alert.location", "location", &location);
}
std::shared_ptr<tracker_element_device_key> devicekey;
std::shared_ptr<tracker_element_string> header;
std::shared_ptr<tracker_element_string> alertclass;
std::shared_ptr<tracker_element_uint8> severity;
std::shared_ptr<tracker_element_uint32> hash;
std::shared_ptr<tracker_element_uint32> phy;
std::shared_ptr<tracker_element_double> timestamp;
std::shared_ptr<tracker_element_mac_addr> transmitter_mac;
std::shared_ptr<tracker_element_mac_addr> source_mac;
std::shared_ptr<tracker_element_mac_addr> dest_mac;
std::shared_ptr<tracker_element_mac_addr> other_mac;
std::shared_ptr<tracker_element_string> channel;
std::shared_ptr<tracker_element_double> frequency;
std::shared_ptr<tracker_element_string> text;
std::shared_ptr<kis_tracked_location_triplet> location;
};
static const int alert_time_unit_conv[] = {
1, 60, 3600, 86400
};
enum alert_time_unit {
sat_second, sat_minute, sat_hour, sat_day
};
class tracked_alert_definition : public tracker_component {
public:
tracked_alert_definition() :
tracker_component() {
register_fields();
reserve_fields(NULL);
}
tracked_alert_definition(int in_id) :
tracker_component(in_id) {
register_fields();
reserve_fields(NULL);
}
tracked_alert_definition(int in_id, std::shared_ptr<tracker_element_map> e) :
tracker_component(in_id) {
register_fields();
reserve_fields(e);
}
virtual uint32_t get_signature() const override {
return adler32_checksum("tracked_alert_definition");
}
virtual std::shared_ptr<tracker_element> clone_type() override {
using this_t = typename std::remove_pointer<decltype(this)>::type;
auto r = std::make_shared<this_t>();
r->set_id(this->get_id());
return r;
}
__Proxy(header, std::string, std::string, std::string, header);
__Proxy(alertclass, std::string, std::string, std::string, alertclass);
__Proxy(severity, uint8_t, uint8_t, uint8_t, severity);
__Proxy(description, std::string, std::string, std::string, description);
__Proxy(phy, int64_t, int64_t, int64_t, phy);
__Proxy(limit_unit, uint64_t, alert_time_unit, alert_time_unit, limit_unit);
__Proxy(limit_rate, uint64_t, uint64_t, uint64_t, limit_rate);
__Proxy(burst_unit, uint64_t, alert_time_unit, alert_time_unit, burst_unit);
__Proxy(limit_burst, uint64_t, uint64_t, uint64_t, limit_burst);
__Proxy(burst_sent, uint64_t, uint64_t, uint64_t, burst_sent);
__ProxyIncDec(burst_sent, uint64_t, uint64_t, burst_sent);
__Proxy(total_sent, uint64_t, uint64_t, uint64_t, total_sent);
__ProxyIncDec(total_sent, uint64_t, uint64_t, total_sent);
__Proxy(time_last, double, double, double, time_last);
int get_alert_ref() { return alert_ref; }
void set_alert_ref(int in_ref) { alert_ref = in_ref; }
protected:
virtual void register_fields() override {
tracker_component::register_fields();
register_field("kismet.alert.definition.header", "Alert name", &header);
register_field("kismet.alert.definition.class", "Alert class", &alertclass);
register_field("kismet.alert.definition.severity", "Alert severity", &severity);
register_field("kismet.alert.definition.description", "Alert description", &description);
register_field("kismet.alert.definition.phyid", "Alert phy type", &phy);
register_field("kismet.alert.definition.limit_unit",
"Alert limit time unit (defined in alertracker.h)", &limit_unit);
register_field("kismet.alert.definition.limit_rate", "Alert rate limit", &limit_rate);
register_field("kismet.alert.definition.burst_unit",
"Burst limit time unit (defined in alertracker.h)", &burst_unit);
register_field("kismet.alert.definition.limit_burst", "Burst rate limit", &limit_burst);
register_field("kismet.alert.definition.burst_sent", "Alerts sent in burst", &burst_sent);
register_field("kismet.alert.definition.total_sent", "Total alerts sent", &total_sent);
register_field("kismet.alert.definition.time_last",
"Timestamp of last alert (sec.us)", &time_last);
}
// Non-exposed internal reference
int alert_ref;
// Alert type and description
std::shared_ptr<tracker_element_string> header;
std::shared_ptr<tracker_element_string> alertclass;
std::shared_ptr<tracker_element_uint8> severity;
std::shared_ptr<tracker_element_string> description;
// Phynum this is linked to
std::shared_ptr<tracker_element_int64> phy;
// Units, rate limit, burst, and burst rate
std::shared_ptr<tracker_element_uint64> limit_unit;
std::shared_ptr<tracker_element_uint64> limit_rate;
std::shared_ptr<tracker_element_uint64> burst_unit;
std::shared_ptr<tracker_element_uint64> limit_burst;
// Number of burst and total alerts we've sent of this type
std::shared_ptr<tracker_element_uint64> burst_sent;
std::shared_ptr<tracker_element_uint64> total_sent;
// Timestamp of the last time
std::shared_ptr<tracker_element_double> time_last;
};
typedef std::shared_ptr<tracked_alert_definition> shared_alert_def;
class alert_tracker : public lifetime_global, public deferred_startup {
public:
// Simple struct from reading config lines
struct alert_conf_rec {
std::string header;
alert_time_unit limit_unit;
int limit_rate;
alert_time_unit burst_unit;
int limit_burst;
};
static std::string global_name() { return "ALERTTRACKER"; }
static std::shared_ptr<alert_tracker> create_alertracker() {
std::shared_ptr<alert_tracker> mon(new alert_tracker());
Globalreg::globalreg->alertracker = mon.get();
Globalreg::globalreg->register_lifetime_global(mon);
Globalreg::globalreg->register_deferred_global(mon);
Globalreg::globalreg->insert_global(global_name(), mon);
return mon;
}
private:
alert_tracker();
// Raise an Prelude alert (requires prelude support compiled in)
int raise_prelude_alert(int in_ref, std::shared_ptr<kis_packet> in_pack, mac_addr bssid, mac_addr source,
mac_addr dest, mac_addr other, std::string in_channel, std::string in_text);
int raise_prelude_one_shot(std::string in_header, std::string in_text);
// Initialize Prelude Client (requires prelude support compiled in)
void prelude_init_client(const char *analyzer_name);
public:
virtual ~alert_tracker();
virtual void trigger_deferred_startup() override;
// Register an alert and get an alert reference number back.
int register_alert(std::string in_header, std::string in_class, kis_alert_severity in_severity,
std::string in_desc, alert_time_unit in_unit, int in_rate, alert_time_unit in_burstunit,
int in_burst, int in_phy);
// Find a reference from a name
int fetch_alert_ref(std::string in_header);
// Will an alert succeed?
int potential_alert(int in_ref);
// Raise an alert ...
int raise_alert(int in_ref, std::shared_ptr<kis_packet> in_pack,
mac_addr bssid, mac_addr source, mac_addr dest, mac_addr other,
std::string in_channel, std::string in_text);
// Raise a one-shot communications alert
int raise_one_shot(std::string in_header, std::string in_class, kis_alert_severity in_severity,
std::string in_text, int in_phy);
// parse an alert config string
int parse_alert_str(std::string alert_str, std::string *ret_name,
alert_time_unit *ret_limit_unit, int *ret_limit_rate,
alert_time_unit *ret_limit_burst, int *ret_burst_rate);
// Load alert rates from a config file
int parse_alert_config(config_file *in_conf);
// Define an alert and limits
int define_alert(std::string name, alert_time_unit limit_unit, int limit_rate,
alert_time_unit limit_burst, int burst_rate);
// Activate a preconfigured alert from a file
int activate_configured_alert(std::string in_header, std::string in_class,
kis_alert_severity in_severity, std::string in_desc);
int activate_configured_alert(std::string in_header, std::string in_class,
kis_alert_severity in_severity,
std::string in_desc, int in_phy);
// Find an activated alert
int find_activated_alert(std::string in_header);
static std::string alert_event() {
return "ALERT";
}
protected:
kis_mutex alert_mutex;
std::shared_ptr<packet_chain> packetchain;
std::shared_ptr<entry_tracker> entrytracker;
std::shared_ptr<event_bus> eventbus;
std::shared_ptr<gps_tracker> gpstracker;
int alert_vec_id, alert_entry_id, alert_timestamp_id, alert_def_id;
// Check and age times
int check_times(shared_alert_def arec);
// Parse a foo/bar rate/unit option
int parse_rate_unit(std::string in_ru, alert_time_unit *ret_unit, int *ret_rate);
int pack_comp_alert, pack_comp_gps;
int alert_ref_kismet;
int next_alert_id;
// Internal C++ mapping
std::map<std::string, int> alert_name_map;
std::map<int, shared_alert_def> alert_ref_map;
// Tracked mapping for export
std::shared_ptr<tracker_element_vector> alert_defs_vec;
int num_backlog;
// Backlog of alerts to be sent
std::shared_ptr<tracker_element_vector> alert_backlog_vec;
// Alert configs we read before we know the alerts themselves
std::map<std::string, alert_conf_rec *> alert_conf_map;
#ifdef PRELUDE
// Prelude client
Prelude::ClientEasy *prelude_client;
// Do we log alerts to Prelude
bool prelude_alerts;
#endif
// Do we log alerts to the kismet database?
bool log_alerts;
void define_alert_endpoint(std::shared_ptr<kis_net_beast_httpd_connection> con);
void raise_alert_endpoint(std::shared_ptr<kis_net_beast_httpd_connection> con);
std::shared_ptr<tracker_element> last_alerts_endpoint(std::shared_ptr<kis_net_beast_httpd_connection> con, bool wrap);
void alert_dt_endpoint(std::shared_ptr<kis_net_beast_httpd_connection> con);
};
#endif