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- added simple stats python script

- added WhiteList database
- updated license to EUPL
bloved 9 months ago
  1. 20
  2. 9
  3. 81
  4. 297
  5. 2
  6. 54
  7. 1
  8. 95


@ -13,6 +13,9 @@ var MyZabovCDB *leveldb.DB
//MyZabovKDBs is the storage where we'll put domains to block (one for each config)
var MyZabovKDBs map[string]*leveldb.DB
//MyZabovWLDBs is the storage where we'll put domains to whitelist (one for each config)
var MyZabovWLDBs map[string]*leveldb.DB
func init() {
var err error
@ -29,6 +32,7 @@ func init() {
MyZabovKDBs = map[string]*leveldb.DB{}
MyZabovWLDBs = map[string]*leveldb.DB{}
// ZabovCreateKDB creates Kill DBs
@ -46,3 +50,19 @@ func ZabovCreateKDB(conf string) {
MyZabovKDBs[conf] = KDB
// ZabovCreateWLDB creates Whitelist DBs
func ZabovCreateWLDB(conf string) {
var err error
dbname := "./db/whitelist_" + conf
WLDB, err := leveldb.OpenFile(dbname, nil)
if err != nil {
fmt.Println("Cannot create whitelist db: ", err.Error())
} else {
fmt.Println("whitelist DB created:", dbname)
MyZabovWLDBs[conf] = WLDB


@ -111,7 +111,13 @@ func init() {
conf.ZabovSingleBL = confRaw["singlefilters"].(string)
conf.ZabovDoubleBL = confRaw["doublefilters"].(string)
conf.ZabovAddBL = net.ParseIP(confRaw["blackholeip"].(string))
conf.ZabovHostsFile = confRaw["hostsfile"].(string)
if confRaw["hostsfile"] != nil {
conf.ZabovHostsFile = confRaw["hostsfile"].(string)
if confRaw["whitelist"] != nil {
conf.ZabovWhiteList = confRaw["whitelist"].(string)
if confRaw["cache"] != nil {
conf.ZabovCache = confRaw["cache"].(bool)
@ -295,6 +301,7 @@ func init() {
delete(ZabovConfigs, name)
} else {


@ -11,20 +11,23 @@ type killfileItem struct {
Kconfigs stringarray
var bChannel chan killfileItem
var bKillChannel chan killfileItem
var bWhiteListChannel chan killfileItem
func init() {
bChannel = make(chan killfileItem, 1024)
bKillChannel = make(chan killfileItem, 1024)
bWhiteListChannel = make(chan killfileItem, 1024)
fmt.Println("Initializing kill channel engine.")
go bWriteThread()
go bWriteKillThread()
go bWriteWhiteListThread()
func bWriteThread() {
func bWriteKillThread() {
for item := range bChannel {
for item := range bKillChannel {
alreadyInSomeDB := false
@ -56,7 +59,7 @@ func DomainKill(s, durl string, configs stringarray) {
k.Ksource = durl
k.Kconfigs = configs
bChannel <- k
bKillChannel <- k
@ -88,3 +91,69 @@ func domainInKillfile(domain string, config string) bool {
return has
func bWriteWhiteListThread() {
for item := range bWhiteListChannel {
alreadyInSomeDB := false
for _, config := range item.Kconfigs {
if !alreadyInSomeDB {
alreadyInSomeDB = domainInWhiteListfile(item.Kdomain, config)
writeInWhiteListfile(item.Kdomain, item.Ksource, config)
if !alreadyInSomeDB {
incrementStats("WL domains from "+item.Ksource, 1)
incrementStats("WL TOTAL", 1)
//DomainWhiteList stores a domain name inside the killfile
func DomainWhiteList(s, durl string, configs stringarray) {
if len(s) > 2 {
s = strings.ToLower(s)
var k killfileItem
k.Kdomain = s
k.Ksource = durl
k.Kconfigs = configs
bWhiteListChannel <- k
func writeInWhiteListfile(key, value string, config string) {
stK := []byte(key)
stV := []byte(value)
MyZabovWLDB := MyZabovWLDBs[config]
err := MyZabovWLDB.Put(stK, stV, nil)
if err != nil {
fmt.Println("Cannot write to Whitelist DB: ", err.Error())
func domainInWhiteListfile(domain string, config string) bool {
s := strings.ToLower(domain)
MyZabovWLDB := MyZabovWLDBs[config]
has, err := MyZabovWLDB.Has([]byte(s), nil)
if err != nil {
fmt.Println("Cannot read from Whitelist DB: ", err.Error())
return has


@ -1,14 +1,289 @@
Copyright (C) 2020
Copyright (C) 2020
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@ -277,7 +277,7 @@ func (mydns *handler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
if domainInKillfile(fqdn, config) {
if !domainInWhiteListfile(fqdn, config) && domainInKillfile(fqdn, config) {
go incrementStats("Killed", 1)
msg.Answer = append(msg.Answer, &dns.A{


@ -11,28 +11,29 @@ func init() {
fmt.Println("Ingesting local hosts file")
func ingestLocalBlacklists() {
fmt.Println("ingestLocalBlacklist: collecting urls from all configs...")
_files := urlsMap{}
_HostsFiles := urlsMap{}
for config := range ZabovConfigs {
ZabovHostsFile := ZabovConfigs[config].ZabovHostsFile
if len(ZabovHostsFile) == 0 {
configs := _files[ZabovHostsFile]
configs := _HostsFiles[ZabovHostsFile]
if configs == nil {
configs = stringarray{}
_files[ZabovHostsFile] = configs
_HostsFiles[ZabovHostsFile] = configs
configs = append(configs, config)
_files[ZabovHostsFile] = configs
_HostsFiles[ZabovHostsFile] = configs
for ZabovHostsFile, configs := range _files {
for ZabovHostsFile, configs := range _HostsFiles {
file, err := os.Open(ZabovHostsFile)
if err != nil {
@ -57,6 +58,49 @@ func ingestLocalBlacklists() {
func ingestLocalWhiteLists() {
fmt.Println("ingestLocalWhiteLists: collecting urls from all configs...")
_WhiteListFiles := urlsMap{}
for config := range ZabovConfigs {
ZabovWhiteList := ZabovConfigs[config].ZabovWhiteList
if len(ZabovWhiteList) == 0 {
configs := _WhiteListFiles[ZabovWhiteList]
if configs == nil {
configs = stringarray{}
_WhiteListFiles[ZabovWhiteList] = configs
configs = append(configs, config)
_WhiteListFiles[ZabovWhiteList] = configs
for ZabovWhiteList, configs := range _WhiteListFiles {
file, err := os.Open(ZabovWhiteList)
if err != nil {
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
d := scanner.Text()
if len(d) == 0 || strings.TrimSpace(d)[0] == '#' {
DomainWhiteList(d, ZabovWhiteList, configs)
incrementStats("WhiteList", 1)
if err := scanner.Err(); err != nil {
func fileByLines(filename string) (blurls []string) {
file, err := os.Open(filename)


@ -39,6 +39,7 @@ type ZabovConfig struct {
ZabovDoubleBL string // json:doublefilters -> ZabovDoubleBL list of urls returning a file with IP<space>domain
ZabovAddBL net.IP // json:blackholeip -> ZabovAddBL is the IP we want to send all the clients to. Usually is
ZabovHostsFile string // json:hostsfile -> ZabovHostsFile is the file we use to keep our hosts
ZabovWhiteList string // json:hostsfile -> ZabovWhiteList is the file we use to keep white listed hosts
ZabovUpDNS string // json:upstream -> ZabovUpDNS keeps the name of upstream DNSs
ZabovDNSArray []string // contains all the DNS we mention, parsed from ZabovUpDNS file
ZabovCache bool // allows to disable cache


@ -0,0 +1,95 @@
#!/bin/env python3
import os
import glob
import argparse
parser = argparse.ArgumentParser(description='Zabov logs analyzer')
parser.add_argument('--ip', dest="ip", metavar='IP', type=str,
help='filter by source IP (substring to match). Default: any')
parser.add_argument('--action', dest="action", metavar='action', type=str, default="killed",
help='filter action (substring to match): killed|forwarded|any. Default: killed')
parser.add_argument('--config', dest="config", metavar='name', type=str,
help='filter by config name (substring to match). Default: any')
parser.add_argument('--timetable', dest="timetable", metavar='name', type=str,
help='filter by timetable name (substring to match). Default: any')
parser.add_argument('--reqtype', dest="reqtype", metavar='TypeA', type=str, default="TypeA",
help='filter by reqtype name (substring to match): TypeA|TypeAAAA|TypeMX|...')
parser.add_argument('--domain', dest="domain", metavar='name', type=str,
help='filter by domain name (substring to match). Default: all')
parser.add_argument('--min-entries', dest="minentries", metavar='100', type=int, default=0,
help='filter output by minimum number of entries. Default: any')
parser.add_argument('--logs-path', dest="logs", metavar='path', type=str, default="./config/logs",
help='Zabov logs path')
args = parser.parse_args()
timetables = {}
configs = {}
killed = {}
for x in glob.glob(os.path.join(args.logs, "*.log")):
#print (x)
f = open(x, "r")
if args.reqtype:
args.reqtype = args.reqtype.lower()
if args.domain:
args.domain = args.domain.lower()
for line in f.readlines():
linel = line.strip().lower()
fields = linel.split("\t")
timetables[fields[5]] = timetables.get(fields[5], 0) +1
configs[fields[4]] = configs.get(fields[4], 0) +1
ok = all((not args.action or fields[6].find(args.action)>=0 or fields[6] == "any", \
not args.timetable or fields[5].find(args.timetable)>=0 or fields[5] == "any", \
not args.config or fields[4].find(args.config)>=0 or fields[4] == "any", \
not args.ip or fields[1].find(args.ip)>=0 or fields[1] == "any",\
not args.domain or fields[2].find(args.domain)>=0 or fields[2] == "any", \
not args.reqtype or fields[3].find(args.reqtype)>=0 ))
if ok:
killed[fields[2]] = killed.get(fields[2], 0) +1
killed_sorted = {key: value for key, value in sorted(killed.items(), key=lambda item: item[1], reverse=True)}
total_queries_filtered = 0
total_domain_filtered = 0
total_queries = 0
for k in killed_sorted.keys():
if args.minentries == 0 or killed[k] >= args.minentries:
print (k, killed[k])
total_queries_filtered += killed[k]
total_queries += killed[k]
print("TOTAL domains (filtered):", total_domain_filtered )
print("TOTAL queries (filtred):", total_queries_filtered )
print("TOTAL domains:", len(killed_sorted.keys()) )
print("TOTAL queries:", total_queries )
timetables = {key: value for key, value in sorted(timetables.items(), key=lambda item: item[0], reverse=False)}
configs = {key: value for key, value in sorted(configs.items(), key=lambda item: item[0], reverse=False)}
print("all available timetables:")
for k in timetables.keys():
print(" '%s': %d items" % (k, timetables[k], ))
print("all available configs:")
for k in configs.keys():
print(" '%s': %d items" % (k, configs[k], ))