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a22eb936bd7c755f476599b529aed8668336ef44
wlan-cloud-analytics/src/APStats.cpp
stephb9959 a22eb936bd Adding WifiClientHistory.
2022-05-15 12:43:32 -07:00

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//
// Created by stephane bourque on 2022-03-11.
//
#include "APStats.h"
#include "dict_ssid.h"
#include "StorageService.h"
#include "WifiClientCache.h"
namespace OpenWifi {
static std::string mac_filter(const std::string &m) {
std::string r;
for(const auto &c:m)
if(c!=':' && c!='-') r += c;
return r;
}
template <typename T> void GetJSON(const char *field, const nlohmann::json & doc, T & v , const T & def ) {
if(doc.contains(field) && !doc[field].is_null()) {
v = doc[field].get<T>();
return;
}
v = def;
}
template <typename T> void GetJSON(const char *field1, const char *field2, const nlohmann::json & doc, T & v , const T & def ) {
if(doc.contains(field1) && !doc[field1].is_null()) {
auto subDoc = doc[field1];
if(subDoc.contains(field2) && !subDoc[field2].is_null()) {
v = subDoc[field2].get<T>();
return;
}
}
v = def;
}
inline double safe_div(uint64_t a , uint64_t b) {
if(b==0)
return 0.0;
return (double)a/ (double) b;
}
inline double safe_pct(uint64_t a , uint64_t b) {
if(b==0)
return 0.0;
return (100.0) * (double) a/ (double) b;
}
inline bool find_ue(const std::string &station, const std::vector<AnalyticsObjects::SSIDTimePoint> &tps, AnalyticsObjects::UETimePoint &ue_tp) {
for(const auto &ssid:tps) {
for(const auto &association:ssid.associations) {
if(association.station==station) {
ue_tp = association;
return true;
}
}
}
return false;
}
template <typename X, typename M> double Average( X T, const std::vector<M> &Values ) {
double result = 0.0;
if(!Values.empty()) {
double sum = 0.0;
for(const auto &v:Values) {
sum += (v.*T);
}
result = sum / (double) Values.size();
}
return result;
}
// This is used to detect a new association VS an existing one. This may happen when a device is connected, disconnects, and
// reconnects in between 2 samples.
static bool new_connection(const AnalyticsObjects::UETimePoint &Existing_UE, const AnalyticsObjects::UETimePoint &new_association) {
if( new_association.tx_packets < Existing_UE.tx_packets ||
new_association.rx_packets < Existing_UE.rx_packets ||
new_association.tx_bytes < Existing_UE.tx_bytes ||
new_association.rx_bytes < Existing_UE.rx_bytes ||
new_association.tx_failed < Existing_UE.tx_failed) {
return true;
}
return false;
}
void AP::UpdateStats(const std::shared_ptr<nlohmann::json> &State) {
DI_.states++;
DI_.connected =true;
AnalyticsObjects::DeviceTimePoint DTP;
Logger().information(fmt::format("{}: stats message.", DI_.serialNumber));
// find radios first to get associations.
try {
if(State->contains("unit")) {
auto unit = (*State)["unit"];
GetJSON("localtime", unit, DI_.lastState, (uint64_t) 0);
GetJSON("uptime", unit, DI_.uptime, (uint64_t) 0);
if(unit.contains("memory")) {
auto memory = unit["memory"];
uint64_t free_mem, total_mem;
GetJSON("free", memory, free_mem, (uint64_t) 0);
GetJSON("total", memory, total_mem, (uint64_t) 0);
if(total_mem) {
DI_.memory = ((double) (total_mem - free_mem) / (double)total_mem) * 100.0;
} else {
DI_.memory = 0.0;
}
}
}
DTP.timestamp = DI_.lastState;
std::map<uint, std::pair<uint,uint> > radio_map;
if(State->contains("radios") && (*State)["radios"].is_array()) {
auto radios = (*State)["radios"];
uint radio_index = 0;
for (const auto &radio: radios) {
if (radio.contains("channel")) {
AnalyticsObjects::RadioTimePoint RTP;
RTP.channel = radio["channel"];
RTP.band = radio["channel"] <= 16 ? 2 : 5;
radio_map[radio_index++] = std::make_pair(RTP.band, RTP.channel);
GetJSON("busy_ms", radio, RTP.busy_ms, (uint64_t) 0);
GetJSON("receive_ms", radio, RTP.receive_ms, (uint64_t) 0);
GetJSON("transmit_ms", radio, RTP.transmit_ms, (uint64_t) 0);
GetJSON("active_ms", radio, RTP.active_ms, (uint64_t) 0);
GetJSON("tx_power", radio, RTP.tx_power, (uint64_t) 0);
GetJSON("active_ms", radio, RTP.active_ms, (uint64_t) 0);
GetJSON("channel", radio, RTP.channel, (uint64_t) 0);
GetJSON("temperature", radio, RTP.temperature, (int64_t) 20);
GetJSON("channel_width", radio, RTP.channel_width, (uint64_t) 20);
if(RTP.temperature==0)
RTP.temperature = 20;
GetJSON("noise", radio, RTP.noise, (int64_t) -90);
if(RTP.noise==0)
RTP.noise=-90;
DTP.radio_data.push_back(RTP);
}
}
}
// now that we know the radio bands, look for associations
auto interfaces = (*State)["interfaces"];
DI_.associations_2g = DI_.associations_5g = DI_.associations_6g = 0;
for(const auto &interface:interfaces) {
if(interface.contains("counters")) {
auto counters = interface["counters"];
GetJSON("collisions", counters, DTP.ap_data.collisions, (uint64_t) 0);
GetJSON("multicast", counters, DTP.ap_data.multicast, (uint64_t) 0);
GetJSON("rx_bytes", counters, DTP.ap_data.rx_bytes, (uint64_t) 0);
GetJSON("rx_dropped", counters, DTP.ap_data.rx_dropped, (uint64_t) 0);
GetJSON("rx_errors", counters, DTP.ap_data.rx_errors, (uint64_t) 0);
GetJSON("rx_packets", counters, DTP.ap_data.rx_packets, (uint64_t) 0);
GetJSON("tx_bytes", counters, DTP.ap_data.tx_bytes, (uint64_t) 0);
GetJSON("tx_dropped", counters, DTP.ap_data.tx_dropped, (uint64_t) 0);
GetJSON("tx_errors", counters, DTP.ap_data.tx_errors, (uint64_t) 0);
GetJSON("tx_packets", counters, DTP.ap_data.tx_packets, (uint64_t) 0);
}
if(interface.contains("ssids")) {
auto ssids = interface["ssids"];
for (const auto &ssid: ssids) {
AnalyticsObjects::SSIDTimePoint SSIDTP;
uint radio_location=0;
SSIDTP.band = 2;
if(ssid.contains("radio")) {
auto radio = ssid["radio"];
if(radio.contains("$ref")) {
auto ref = radio["$ref"];
auto radio_parts = Poco::StringTokenizer(ref, "/");
if(radio_parts.count()==3) {
radio_location = std::strtol(radio_parts[2].c_str(), nullptr, 10);
if(radio_map.find(radio_location)!=radio_map.end()) {
SSIDTP.band = radio_map[radio_location].first;
SSIDTP.channel = radio_map[radio_location].second;
}
}
}
}
GetJSON("bssid",ssid,SSIDTP.bssid, std::string{""});
GetJSON("mode",ssid,SSIDTP.mode, std::string{""} );
GetJSON("ssid",ssid,SSIDTP.ssid, std::string{""} );
if (ssid.contains("associations") && ssid["associations"].is_array()) {
auto associations = ssid["associations"];
auto radio_it = radio_map.find(radio_location);
if(radio_it!=radio_map.end()) {
auto the_radio = radio_it->second.first;
if (the_radio == 2)
DI_.associations_2g += associations.size();
else if (the_radio == 5)
DI_.associations_5g += associations.size();
else if (the_radio == 6)
DI_.associations_6g += associations.size();
}
for(const auto &association:associations) {
AnalyticsObjects::UETimePoint TP;
GetJSON("station",association,TP.station, std::string{} );
GetJSON("rssi",association,TP.rssi, (int64_t)0 );
GetJSON("tx_bytes",association,TP.tx_bytes, (uint64_t)0 );
GetJSON("rx_bytes",association,TP.rx_bytes, (uint64_t)0 );
GetJSON("tx_duration",association,TP.tx_duration, (uint64_t)0 );
GetJSON("rx_packets",association,TP.rx_packets, (uint64_t)0 );
GetJSON("tx_packets",association,TP.tx_packets, (uint64_t)0 );
GetJSON("tx_retries",association,TP.tx_retries, (uint64_t)0 );
GetJSON("tx_failed",association,TP.tx_failed, (uint64_t)0 );
GetJSON("connected",association,TP.connected, (uint64_t)0 );
GetJSON("inactive",association,TP.inactive, (uint64_t)0 );
AnalyticsObjects::WifiClientHistory WFH;
WFH.stationId = mac_filter(TP.station);
std::cout << "Adding WiFiClient: " << WFH.stationId << std::endl;
WFH.bssId = mac_filter(SSIDTP.bssid);
WFH.ssid = SSIDTP.ssid;
WFH.rssi = TP.rssi;
GetJSON("rx_rate","bitrate",association,WFH.rx_bitrate,(uint32_t)0);
GetJSON("rx_rate","chwidth",association,WFH.rx_chwidth,(uint32_t)0);
GetJSON("rx_rate","mcs",association,WFH.rx_mcs,(uint16_t)0);
GetJSON("rx_rate","nss",association,WFH.rx_nss,(uint16_t)0);
GetJSON("rx_rate","vht",association,WFH.rx_vht,false);
GetJSON("tx_rate","bitrate",association,WFH.tx_bitrate,(uint32_t)0);
GetJSON("tx_rate","chwidth",association,WFH.tx_chwidth,(uint32_t)0);
GetJSON("tx_rate","mcs",association,WFH.tx_mcs,(uint16_t)0);
GetJSON("tx_rate","nss",association,WFH.tx_nss,(uint16_t)0);
GetJSON("tx_rate","vht",association,WFH.tx_vht,false);
GetJSON("rx_bytes",association,WFH.rx_bytes,(uint64_t)0);
GetJSON("tx_bytes",association,WFH.tx_bytes,(uint64_t)0);
GetJSON("rx_duration",association,WFH.rx_duration,(uint64_t)0);
GetJSON("tx_duration",association,WFH.tx_duration,(uint64_t)0);
GetJSON("rx_packets",association,WFH.rx_packets,(uint64_t)0);
GetJSON("tx_packets",association,WFH.tx_packets,(uint64_t)0);
WFH.ipv4 = "---";
WFH.ipv6 = "----";
for(const auto &rd:DTP.radio_data) {
if(rd.band == SSIDTP.band) {
WFH.channel_width = rd.channel_width;
WFH.noise = rd.noise;
WFH.tx_power = rd.tx_power;
WFH.channel = rd.channel;
WFH.active_ms = rd.active_ms;
WFH.busy_ms = rd.busy_ms;
WFH.receive_ms = rd.receive_ms;
break;
}
}
WFH.mode = SSIDTP.mode;
GetJSON("ack_signal",association,WFH.ack_signal,(int64_t)0);
GetJSON("ack_signal_avg",association,WFH.ack_signal_avg,(int64_t)0);
GetJSON("connected",association,WFH.connected,(uint64_t)0);
GetJSON("inactive",association,WFH.inactive,(uint64_t)0);
GetJSON("tx_retries",association,WFH.tx_retries,(uint64_t)0);
std::cout << "Adding WiFiClient: " << WFH.stationId << std::endl;
WifiClientCache()->AddSerialNumber(WFH.stationId);
StorageService()->WifiClientHistoryDB().CreateRecord(WFH);
if(association.contains("tid_stats") && association["tid_stats"].is_array()) {
auto tid_stats = association["tid_stats"];
for(const auto &tid_stat:tid_stats) {
AnalyticsObjects::TIDstat_entry E;
GetJSON("rx_msdu",tid_stat,E.rx_msdu, (uint64_t)0 );
GetJSON("tx_msdu",tid_stat,E.tx_msdu, (uint64_t)0 );
GetJSON("tx_msdu_failed",tid_stat,E.tx_msdu_failed, (uint64_t)0 );
GetJSON("tx_msdu_retries",tid_stat,E.tx_msdu_retries, (uint64_t)0 );
TP.tidstats.push_back(E);
}
}
if(association.contains("tx_rate")) {
auto tx_rate = association["tx_rate"];
GetJSON("bitrate",tx_rate,TP.tx_rate.bitrate, (uint64_t)0 );
GetJSON("mcs",tx_rate,TP.tx_rate.mcs, (uint64_t)0 );
GetJSON("nss",tx_rate,TP.tx_rate.nss, (uint64_t)0 );
GetJSON("chwidth",tx_rate,TP.tx_rate.chwidth, (uint64_t)0 );
GetJSON("ht",tx_rate,TP.tx_rate.ht, false );
GetJSON("sgi",tx_rate,TP.tx_rate.sgi, false );
}
if(association.contains("rx_rate")) {
auto rx_rate = association["rx_rate"];
GetJSON("bitrate",rx_rate,TP.rx_rate.bitrate, (uint64_t)0 );
GetJSON("mcs",rx_rate,TP.rx_rate.mcs, (uint64_t)0 );
GetJSON("nss",rx_rate,TP.rx_rate.nss, (uint64_t)0 );
GetJSON("chwidth",rx_rate,TP.rx_rate.chwidth, (uint64_t)0 );
GetJSON("ht",rx_rate,TP.rx_rate.ht, false );
GetJSON("sgi",rx_rate,TP.rx_rate.sgi, false );
}
SSIDTP.associations.push_back(TP);
}
}
DTP.ssid_data.push_back(SSIDTP);
}
}
}
DTP.device_info = DI_;
} catch (...) {
Logger().information(fmt::format("{}: stats failed parsing.", DI_.serialNumber));
}
if(got_base) {
// calculate new point based on base, save new point, move DTP into base...
AnalyticsObjects::DeviceTimePoint db_DTP = DTP;
auto time_lapse = DTP.timestamp - tp_base_.timestamp;
if(time_lapse==0) time_lapse = 1;
db_DTP.ap_data.tx_bytes_delta = db_DTP.ap_data.tx_bytes - tp_base_.ap_data.tx_bytes;
db_DTP.ap_data.rx_bytes_delta = db_DTP.ap_data.rx_bytes - tp_base_.ap_data.rx_bytes;
db_DTP.ap_data.tx_packets_delta = db_DTP.ap_data.tx_packets - tp_base_.ap_data.tx_packets;
db_DTP.ap_data.rx_packets_delta = db_DTP.ap_data.rx_packets - tp_base_.ap_data.rx_packets;
db_DTP.ap_data.tx_dropped_delta = db_DTP.ap_data.tx_dropped - tp_base_.ap_data.tx_dropped;
db_DTP.ap_data.rx_dropped_delta = db_DTP.ap_data.rx_dropped - tp_base_.ap_data.rx_dropped;
db_DTP.ap_data.tx_errors_delta = db_DTP.ap_data.tx_errors - tp_base_.ap_data.tx_errors;
db_DTP.ap_data.rx_errors_delta = db_DTP.ap_data.rx_errors - tp_base_.ap_data.rx_errors;
db_DTP.ap_data.tx_bytes_bw = safe_div(db_DTP.ap_data.tx_bytes_delta, time_lapse);
db_DTP.ap_data.rx_bytes_bw = safe_div(db_DTP.ap_data.rx_bytes_delta , time_lapse);
db_DTP.ap_data.tx_packets_bw = safe_div(db_DTP.ap_data.tx_packets_delta, time_lapse);
db_DTP.ap_data.rx_packets_bw = safe_div(db_DTP.ap_data.rx_packets_delta, time_lapse);
db_DTP.ap_data.tx_dropped_pct = safe_pct(db_DTP.ap_data.tx_dropped_delta, db_DTP.ap_data.tx_packets);
db_DTP.ap_data.rx_dropped_pct = safe_pct(db_DTP.ap_data.rx_dropped_delta, db_DTP.ap_data.rx_packets);
db_DTP.ap_data.tx_errors_pct = safe_pct(db_DTP.ap_data.tx_errors_delta, db_DTP.ap_data.tx_packets);
db_DTP.ap_data.rx_errors_pct = safe_pct(db_DTP.ap_data.rx_errors_delta, db_DTP.ap_data.rx_packets);
for(auto &radio:db_DTP.radio_data) {
bool found=false;
for(const auto &base_radio:tp_base_.radio_data) {
if(radio.channel==base_radio.channel) {
found = true;
radio.active_pct = safe_pct( (radio.active_ms - base_radio.active_ms) / 1000 , time_lapse);
radio.busy_pct = safe_pct( (radio.busy_ms - base_radio.busy_ms) / 1000 , time_lapse);
radio.receive_pct = safe_pct( (radio.receive_ms - base_radio.receive_ms) / 1000 , time_lapse);
radio.transmit_pct = safe_pct( (radio.transmit_ms - base_radio.transmit_ms) / 1000 ,time_lapse);
}
}
if(!found) {
radio.active_pct = safe_pct(radio.active_ms / 1000, time_lapse);
radio.busy_pct = safe_pct(radio.busy_ms / 1000, time_lapse);
radio.receive_pct = safe_pct(radio.receive_ms / 1000, time_lapse);
radio.transmit_pct = safe_pct(radio.transmit_ms / 1000, time_lapse);
}
}
for(auto &ssid:db_DTP.ssid_data) {
for(auto &association:ssid.associations) {
AnalyticsObjects::UETimePoint ue_tp;
if(find_ue(association.station, tp_base_.ssid_data, ue_tp) && !new_connection(ue_tp,association)) {
association.tx_bytes_delta = association.tx_bytes - ue_tp.tx_bytes;
association.rx_bytes_delta = association.rx_bytes - ue_tp.rx_bytes;
association.tx_packets_delta = association.tx_packets - ue_tp.tx_packets;
association.rx_packets_delta = association.rx_packets - ue_tp.rx_packets;
association.tx_failed_delta = association.tx_failed - ue_tp.tx_failed;
association.tx_retries_delta = association.tx_retries - ue_tp.tx_retries;
association.tx_duration_delta = association.tx_duration - ue_tp.tx_duration;
} else {
association.tx_bytes_delta = association.tx_bytes;
association.rx_bytes_delta = association.rx_bytes;
association.tx_packets_delta = association.tx_packets;
association.rx_packets_delta = association.rx_packets;
association.tx_failed_delta = association.tx_failed;
association.tx_retries_delta = association.tx_retries;
association.tx_duration_delta = association.tx_duration;
}
association.tx_bytes_bw = safe_div( association.tx_bytes_delta , time_lapse );
association.rx_bytes_bw = safe_div( association.rx_bytes_delta , time_lapse );
association.tx_packets_bw = safe_div( association.tx_packets_delta , time_lapse );
association.rx_packets_bw = safe_div( association.rx_packets_delta , time_lapse );
association.tx_failed_pct = safe_pct( association.tx_failed_delta, association.tx_packets);
association.tx_retries_pct = safe_pct( association.tx_retries_delta, association.tx_packets);
association.tx_duration_pct = safe_pct( (association.tx_duration_delta) / 1000000 , time_lapse );
ssid.tx_failed_pct.max = std::max(ssid.tx_failed_pct.max, association.tx_failed_pct);
ssid.tx_failed_pct.min = std::min(ssid.tx_failed_pct.min, association.tx_failed_pct);
ssid.tx_retries_pct.max = std::max(ssid.tx_retries_pct.max, association.tx_retries_pct);
ssid.tx_retries_pct.min = std::min(ssid.tx_retries_pct.min, association.tx_retries_pct);
ssid.tx_duration_pct.max = std::max(ssid.tx_duration_pct.max, association.tx_duration_pct);
ssid.tx_duration_pct.min = std::min(ssid.tx_duration_pct.min, association.tx_duration_pct);
ssid.tx_bytes_bw.max = std::max(ssid.tx_bytes_bw.max, association.tx_bytes_bw);
ssid.tx_bytes_bw.min = std::min(ssid.tx_bytes_bw.min, association.tx_bytes_bw);
ssid.rx_bytes_bw.max = std::max(ssid.rx_bytes_bw.max, association.rx_bytes_bw);
ssid.rx_bytes_bw.min = std::min(ssid.rx_bytes_bw.min, association.rx_bytes_bw);
ssid.tx_packets_bw.max = std::max(ssid.tx_packets_bw.max, association.tx_packets_bw);
ssid.tx_packets_bw.min = std::min(ssid.tx_packets_bw.min, association.tx_packets_bw);
ssid.rx_packets_bw.max = std::max(ssid.rx_packets_bw.max, association.rx_packets_bw);
ssid.rx_packets_bw.min = std::min(ssid.rx_packets_bw.min, association.rx_packets_bw);
}
ssid.tx_bytes_bw.avg = Average(&AnalyticsObjects::UETimePoint::tx_bytes_bw,ssid.associations);
ssid.rx_bytes_bw.avg = Average(&AnalyticsObjects::UETimePoint::rx_bytes_bw,ssid.associations);
ssid.tx_packets_bw.avg = Average(&AnalyticsObjects::UETimePoint::tx_packets_bw,ssid.associations);
ssid.rx_packets_bw.avg = Average(&AnalyticsObjects::UETimePoint::rx_packets_bw,ssid.associations);
ssid.tx_failed_pct.avg = Average(&AnalyticsObjects::UETimePoint::tx_failed_pct,ssid.associations);
ssid.tx_retries_pct.avg = Average(&AnalyticsObjects::UETimePoint::tx_retries_pct,ssid.associations);
ssid.tx_duration_pct.avg = Average(&AnalyticsObjects::UETimePoint::tx_duration_pct,ssid.associations);
}
if (got_connection && got_health) {
db_DTP.id = MicroService::instance().CreateUUID();
db_DTP.boardId = boardId_;
db_DTP.serialNumber = db_DTP.device_info.serialNumber;
StorageService()->TimePointsDB().CreateRecord(db_DTP);
}
tp_base_ = DTP;
} else {
tp_base_ = DTP;
got_base = true;
}
}
void AP::UpdateConnection(const std::shared_ptr<nlohmann::json> &Connection) {
DI_.pings++;
DI_.lastContact = OpenWifi::Now();
try {
if (Connection->contains("ping")) {
got_connection = true;
Logger().information(fmt::format("{}: ping message.", DI_.serialNumber));
DI_.connected = true;
DI_.lastPing = OpenWifi::Now();
auto ping = (*Connection)["ping"];
GetJSON("compatible", ping, DI_.deviceType, std::string{} );
GetJSON("connectionIp", ping, DI_.connectionIp, std::string{} );
GetJSON("locale", ping, DI_.locale, std::string{} );
GetJSON("timestamp", ping, DI_.lastConnection, (uint64_t) OpenWifi::Now() );
if (ping.contains("firmware")) {
auto NewFirmware = ping["firmware"];
if (NewFirmware != DI_.lastFirmware) {
DI_.lastFirmware = NewFirmware;
DI_.lastFirmwareUpdate = OpenWifi::Now();
}
}
} else if (Connection->contains("disconnection")) {
Logger().information(fmt::format("{}: disconnection message.", DI_.serialNumber));
auto Disconnection = (*Connection)["disconnection"];
GetJSON("timestamp", Disconnection, DI_.lastDisconnection, (uint64_t)0 );
got_base = got_health = got_connection = false;
DI_.connected = false;
} else if (Connection->contains("capabilities")) {
Logger().information(fmt::format("{}: connection message.", DI_.serialNumber));
got_connection = true;
DI_.connected = true;
DI_.lastConnection = OpenWifi::Now();
auto ConnectionData = (*Connection)["capabilities"];
if (ConnectionData.contains("firmware")) {
auto NewFirmware = ConnectionData["firmware"];
if (NewFirmware != DI_.lastFirmware) {
DI_.lastFirmware = NewFirmware;
DI_.lastFirmwareUpdate = OpenWifi::Now();
}
}
GetJSON("connectionIp", ConnectionData, DI_.connectionIp, std::string{} );
GetJSON("locale", ConnectionData, DI_.locale, std::string{} );
}
} catch (...) {
Logger().information(fmt::format("{}: error parsing connection message.", DI_.serialNumber));
}
}
void AP::UpdateHealth(const std::shared_ptr<nlohmann::json> & Health) {
try {
got_health = true;
GetJSON("timestamp", *Health, DI_.lastHealth, (uint64_t)0 );
GetJSON("sanity", *Health, DI_.health, (uint64_t)0 );
Logger().information(fmt::format("{}: health message.", DI_.serialNumber));
} catch(...) {
Logger().information(fmt::format("{}: error parsing health message.", DI_.serialNumber));
}
}
}
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