net/banip/files/banip-functions.sh

   1 # banIP shared function library/include - ban incoming and outgoing IPs via named nftables Sets
   2 # Copyright (c) 2018-2023 Dirk Brenken (dev@brenken.org)
   3 # This is free software, licensed under the GNU General Public License v3.
   4
   5 # (s)hellcheck exceptions
   6 # shellcheck disable=all
   7
   8 # set initial defaults
   9 #
  10 export LC_ALL=C
  11 export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
  12
  13 ban_basedir="/tmp"
  14 ban_backupdir="/tmp/banIP-backup"
  15 ban_reportdir="/tmp/banIP-report"
  16 ban_feedfile="/etc/banip/banip.feeds"
  17 ban_customfeedfile="/etc/banip/banip.custom.feeds"
  18 ban_allowlist="/etc/banip/banip.allowlist"
  19 ban_blocklist="/etc/banip/banip.blocklist"
  20 ban_mailtemplate="/etc/banip/banip.tpl"
  21 ban_pidfile="/var/run/banip.pid"
  22 ban_rtfile="/var/run/banip_runtime.json"
  23 ban_rdapfile="/var/run/banip_rdap.json"
  24 ban_rdapurl="https://rdap.db.ripe.net/ip/"
  25 ban_lock="/var/run/banip.lock"
  26 ban_logreadcmd="$(command -v logread)"
  27 ban_logcmd="$(command -v logger)"
  28 ban_ubuscmd="$(command -v ubus)"
  29 ban_nftcmd="$(command -v nft)"
  30 ban_fw4cmd="$(command -v fw4)"
  31 ban_awkcmd="$(command -v awk)"
  32 ban_grepcmd="$(command -v grep)"
  33 ban_sedcmd="$(command -v sed)"
  34 ban_catcmd="$(command -v cat)"
  35 ban_zcatcmd="$(command -v zcat)"
  36 ban_lookupcmd="$(command -v nslookup)"
  37 ban_jsoncmd="$(command -v jsonfilter)"
  38 ban_mailcmd="$(command -v msmtp)"
  39 ban_mailsender="no-reply@banIP"
  40 ban_mailreceiver=""
  41 ban_mailtopic="banIP notification"
  42 ban_mailprofile="ban_notify"
  43 ban_mailnotification="0"
  44 ban_reportelements="1"
  45 ban_nftloglevel="warn"
  46 ban_nftpriority="-200"
  47 ban_nftpolicy="memory"
  48 ban_nftexpiry=""
  49 ban_loglimit="100"
  50 ban_logcount="1"
  51 ban_logterm=""
  52 ban_country=""
  53 ban_asn=""
  54 ban_loginput="1"
  55 ban_logforwardwan="1"
  56 ban_logforwardlan="0"
  57 ban_allowurl=""
  58 ban_allowlistonly="0"
  59 ban_autoallowlist="1"
  60 ban_autoallowuplink="subnet"
  61 ban_autoblocklist="1"
  62 ban_autoblocksubnet="0"
  63 ban_deduplicate="1"
  64 ban_splitsize="0"
  65 ban_autodetect="1"
  66 ban_feed=""
  67 ban_blockpolicy=""
  68 ban_blocktype="drop"
  69 ban_blockinput=""
  70 ban_blockforwardwan=""
  71 ban_blockforwardlan=""
  72 ban_protov4="0"
  73 ban_protov6="0"
  74 ban_ifv4=""
  75 ban_ifv6=""
  76 ban_dev=""
  77 ban_vlanallow=""
  78 ban_vlanblock=""
  79 ban_uplink=""
  80 ban_fetchcmd=""
  81 ban_fetchparm=""
  82 ban_fetchinsecure=""
  83 ban_fetchretry="5"
  84 ban_rdapparm=""
  85 ban_etagparm=""
  86 ban_cores=""
  87 ban_memory=""
  88 ban_packages=""
  89 ban_trigger=""
  90 ban_resolver=""
  91 ban_enabled="0"
  92 ban_debug="0"
  93
  94 # gather system information
  95 #
  96 f_system() {
  97         local cpu core
  98
  99         if [ -z "${ban_dev}" ]; then
 100                 ban_debug="$(uci_get banip global ban_debug)"
 101                 ban_cores="$(uci_get banip global ban_cores)"
 102         fi
 103         ban_packages="$(${ban_ubuscmd} -S call rpc-sys packagelist '{ "all": true }' 2>/dev/null)"
 104         ban_memory="$("${ban_awkcmd}" '/^MemAvailable/{printf "%s",int($2/1000)}' "/proc/meminfo" 2>/dev/null)"
 105         ban_ver="$(printf "%s" "${ban_packages}" | "${ban_jsoncmd}" -ql1 -e '@.packages.banip')"
 106         ban_sysver="$("${ban_ubuscmd}" -S call system board 2>/dev/null | "${ban_jsoncmd}" -ql1 -e '@.model' -e '@.release.description' |
 107                 "${ban_awkcmd}" 'BEGIN{RS="";FS="\n"}{printf "%s, %s",$1,$2}')"
 108         if [ -z "${ban_cores}" ]; then
 109                 cpu="$("${ban_grepcmd}" -c '^processor' /proc/cpuinfo 2>/dev/null)"
 110                 core="$("${ban_grepcmd}" -cm1 '^core id' /proc/cpuinfo 2>/dev/null)"
 111                 [ "${cpu}" = "0" ] && cpu="1"
 112                 [ "${core}" = "0" ] && core="1"
 113                 ban_cores="$((cpu * core))"
 114         fi
 115 }
 116
 117 # create directories
 118 #
 119 f_mkdir() {
 120         local dir="${1}"
 121
 122         if [ ! -d "${dir}" ]; then
 123                 rm -f "${dir}"
 124                 mkdir -p "${dir}"
 125                 f_log "debug" "f_mkdir     ::: directory: ${dir}"
 126         fi
 127 }
 128
 129 # create files
 130 #
 131 f_mkfile() {
 132         local file="${1}"
 133
 134         if [ ! -f "${file}" ]; then
 135                 : >"${file}"
 136                 f_log "debug" "f_mkfile    ::: file: ${file}"
 137         fi
 138 }
 139
 140 # create temporary files and directories
 141 #
 142 f_tmp() {
 143         f_mkdir "${ban_basedir}"
 144         ban_tmpdir="$(mktemp -p "${ban_basedir}" -d)"
 145         ban_tmpfile="$(mktemp -p "${ban_tmpdir}" -tu)"
 146
 147         f_log "debug" "f_tmp       ::: base_dir: ${ban_basedir:-"-"}, tmp_dir: ${ban_tmpdir:-"-"}"
 148 }
 149
 150 # remove directories
 151 #
 152 f_rmdir() {
 153         local dir="${1}"
 154
 155         if [ -d "${dir}" ]; then
 156                 rm -rf "${dir}"
 157                 f_log "debug" "f_rmdir     ::: directory: ${dir}"
 158         fi
 159 }
 160
 161 # convert chars
 162 #
 163 f_char() {
 164         local char="${1}"
 165
 166         if [ "${char}" = "1" ]; then
 167                 printf "%s" "✔"
 168         elif [ "${char}" = "0" ] || [ -z "${char}" ]; then
 169                 printf "%s" "✘"
 170         else
 171                 printf "%s" "${char}"
 172         fi
 173 }
 174
 175 # trim strings
 176 #
 177 f_trim() {
 178         local string="${1}"
 179
 180         string="${string#"${string%%[![:space:]]*}"}"
 181         string="${string%"${string##*[![:space:]]}"}"
 182         printf "%s" "${string}"
 183 }
 184
 185 # remove log monitor
 186 #
 187 f_rmpid() {
 188         local ppid pid pids
 189
 190         ppid="$("${ban_catcmd}" "${ban_pidfile}" 2>/dev/null)"
 191         [ -n "${ppid}" ] && pids="$(pgrep -P "${ppid}" 2>/dev/null)"
 192         for pid in ${pids}; do
 193                 kill -INT "${pid}" >/dev/null 2>&1
 194         done
 195         : >"${ban_rdapfile}"
 196         : >"${ban_pidfile}"
 197 }
 198
 199 # write log messages
 200 #
 201 f_log() {
 202         local class="${1}" log_msg="${2}"
 203
 204         if [ -n "${log_msg}" ] && { [ "${class}" != "debug" ] || [ "${ban_debug}" = "1" ]; }; then
 205                 if [ -x "${ban_logcmd}" ]; then
 206                         "${ban_logcmd}" -p "${class}" -t "banIP-${ban_ver}[${$}]" "${log_msg}"
 207                 else
 208                         printf "%s %s %s\n" "${class}" "banIP-${ban_ver}[${$}]" "${log_msg}"
 209                 fi
 210         fi
 211         if [ "${class}" = "err" ]; then
 212                 "${ban_nftcmd}" delete table inet banIP >/dev/null 2>&1
 213                 if [ "${ban_enabled}" = "1" ]; then
 214                         f_genstatus "error"
 215                         [ "${ban_mailnotification}" = "1" ] && [ -n "${ban_mailreceiver}" ] && [ -x "${ban_mailcmd}" ] && f_mail
 216                 else
 217                         f_genstatus "disabled"
 218                 fi
 219                 f_rmdir "${ban_tmpdir}"
 220                 f_rmpid
 221                 rm -rf "${ban_lock}"
 222                 exit 1
 223         fi
 224 }
 225
 226 # load config
 227 #
 228 f_conf() {
 229         unset ban_dev ban_vlanallow ban_vlanblock ban_ifv4 ban_ifv6 ban_feed ban_allowurl ban_blockinput ban_blockforwardwan ban_blockforwardlan ban_logterm ban_country ban_asn
 230         config_cb() {
 231                 option_cb() {
 232                         local option="${1}"
 233                         local value="${2}"
 234                         eval "${option}=\"${value}\""
 235                 }
 236                 list_cb() {
 237                         local option="${1}"
 238                         local value="${2}"
 239                         case "${option}" in
 240                                 "ban_ifv4")
 241                                         eval "${option}=\"$(printf "%s" "${ban_ifv4}")${value} \""
 242                                         ;;
 243                                 "ban_ifv6")
 244                                         eval "${option}=\"$(printf "%s" "${ban_ifv6}")${value} \""
 245                                         ;;
 246                                 "ban_dev")
 247                                         eval "${option}=\"$(printf "%s" "${ban_dev}")${value} \""
 248                                         ;;
 249                                 "ban_vlanallow")
 250                                         eval "${option}=\"$(printf "%s" "${ban_vlanallow}")${value} \""
 251                                         ;;
 252                                 "ban_vlanblock")
 253                                         eval "${option}=\"$(printf "%s" "${ban_vlanblock}")${value} \""
 254                                         ;;
 255                                 "ban_trigger")
 256                                         eval "${option}=\"$(printf "%s" "${ban_trigger}")${value} \""
 257                                         ;;
 258                                 "ban_feed")
 259                                         eval "${option}=\"$(printf "%s" "${ban_feed}")${value} \""
 260                                         ;;
 261                                 "ban_allowurl")
 262                                         eval "${option}=\"$(printf "%s" "${ban_allowurl}")${value} \""
 263                                         ;;
 264                                 "ban_blockinput")
 265                                         eval "${option}=\"$(printf "%s" "${ban_blockinput}")${value} \""
 266                                         ;;
 267                                 "ban_blockforwardwan")
 268                                         eval "${option}=\"$(printf "%s" "${ban_blockforwardwan}")${value} \""
 269                                         ;;
 270                                 "ban_blockforwardlan")
 271                                         eval "${option}=\"$(printf "%s" "${ban_blockforwardlan}")${value} \""
 272                                         ;;
 273                                 "ban_logterm")
 274                                         eval "${option}=\"$(printf "%s" "${ban_logterm}")${value}\\|\""
 275                                         ;;
 276                                 "ban_country")
 277                                         eval "${option}=\"$(printf "%s" "${ban_country}")${value} \""
 278                                         ;;
 279                                 "ban_asn")
 280                                         eval "${option}=\"$(printf "%s" "${ban_asn}")${value} \""
 281                                         ;;
 282                         esac
 283                 }
 284         }
 285         config_load banip
 286 }
 287
 288 # get nft/monitor actuals
 289 #
 290 f_actual() {
 291         local nft monitor
 292
 293         if "${ban_nftcmd}" -t list set inet banIP allowlistv4MAC >/dev/null 2>&1; then
 294                 nft="$(f_char "1")"
 295         else
 296                 nft="$(f_char "0")"
 297         fi
 298         if pgrep -f "${ban_logreadcmd##*/}" -P "$("${ban_catcmd}" "${ban_pidfile}" 2>/dev/null)" >/dev/null 2>&1; then
 299                 monitor="$(f_char "1")"
 300         else
 301                 monitor="$(f_char "0")"
 302         fi
 303         printf "%s" "nft: ${nft}, monitor: ${monitor}"
 304 }
 305
 306 # get fetch utility
 307 #
 308 f_getfetch() {
 309         local item utils insecure update="0"
 310
 311         if { [ "${ban_fetchcmd}" = "uclient-fetch" ] && printf "%s" "${ban_packages}" | "${ban_grepcmd}" -q '"libustream-'; } ||
 312                 { [ "${ban_fetchcmd}" = "wget" ] && printf "%s" "${ban_packages}" | "${ban_grepcmd}" -q '"wget-ssl'; } ||
 313                 [ "${ban_fetchcmd}" = "curl" ] || [ "${ban_fetchcmd}" = "aria2c" ]; then
 314                 ban_fetchcmd="$(command -v "${ban_fetchcmd}")"
 315         else
 316                 ban_fetchcmd=""
 317         fi
 318
 319         if [ "${ban_autodetect}" = "1" ] && [ ! -x "${ban_fetchcmd}" ]; then
 320                 utils="aria2c curl wget uclient-fetch"
 321                 for item in ${utils}; do
 322                         if { [ "${item}" = "uclient-fetch" ] && printf "%s" "${ban_packages}" | "${ban_grepcmd}" -q '"libustream-'; } ||
 323                                 { [ "${item}" = "wget" ] && printf "%s" "${ban_packages}" | "${ban_grepcmd}" -q '"wget-ssl'; } ||
 324                                 [ "${item}" = "curl" ] || [ "${item}" = "aria2c" ]; then
 325                                 ban_fetchcmd="$(command -v "${item}")"
 326                                 if [ -x "${ban_fetchcmd}" ]; then
 327                                         update="1"
 328                                         uci_set banip global ban_fetchcmd "${item}"
 329                                         uci_commit "banip"
 330                                         break
 331                                 fi
 332                         fi
 333                 done
 334         fi
 335
 336         [ ! -x "${ban_fetchcmd}" ] && f_log "err" "no download utility with SSL support"
 337         case "${ban_fetchcmd##*/}" in
 338                 "aria2c")
 339                         [ "${ban_fetchinsecure}" = "1" ] && insecure="--check-certificate=false"
 340                         ban_fetchparm="${ban_fetchparm:-"${insecure} --timeout=20 --retry-wait=10 --max-tries=${ban_fetchretry} --max-file-not-found=${ban_fetchretry} --allow-overwrite=true --auto-file-renaming=false --log-level=warn --dir=/ -o"}"
 341                         ban_rdapparm="--timeout=5 --allow-overwrite=true --auto-file-renaming=false --dir=/ -o"
 342                         ban_etagparm="--timeout=5 --allow-overwrite=true --auto-file-renaming=false --dir=/ --dry-run --log -"
 343                         ;;
 344                 "curl")
 345                         [ "${ban_fetchinsecure}" = "1" ] && insecure="--insecure"
 346                         ban_fetchparm="${ban_fetchparm:-"${insecure} --connect-timeout 20 --retry-delay 10 --retry ${ban_fetchretry} --retry-max-time $((ban_fetchretry * 20)) --retry-all-errors --fail --silent --show-error --location -o"}"
 347                         ban_rdapparm="--connect-timeout 5 --silent --location -o"
 348                         ban_etagparm="--connect-timeout 5 --silent --location --head"
 349                         ;;
 350                 "wget")
 351                         [ "${ban_fetchinsecure}" = "1" ] && insecure="--no-check-certificate"
 352                         ban_fetchparm="${ban_fetchparm:-"${insecure} --no-cache --no-cookies --timeout=20 --waitretry=10 --tries=${ban_fetchretry} --retry-connrefused -O"}"
 353                         ban_rdapparm="--timeout=5 -O"
 354                         ban_etagparm="--timeout=5 --spider --server-response"
 355                         ;;
 356                 "uclient-fetch")
 357                         [ "${ban_fetchinsecure}" = "1" ] && insecure="--no-check-certificate"
 358                         ban_fetchparm="${ban_fetchparm:-"${insecure} --timeout=20 -O"}"
 359                         ban_rdapparm="--timeout=5 -O"
 360                         ;;
 361         esac
 362
 363         f_log "debug" "f_getfetch  ::: auto/update: ${ban_autodetect}/${update}, cmd: ${ban_fetchcmd:-"-"}, fetch_parm: ${ban_fetchparm:-"-"}, rdap_parm: ${ban_rdapparm:-"-"}, etag_parm: ${ban_etagparm:-"-"}"
 364 }
 365
 366 # get wan interfaces
 367 #
 368 f_getif() {
 369         local iface update="0"
 370
 371         if [ "${ban_autodetect}" = "1" ]; then
 372                 if [ -z "${ban_ifv4}" ]; then
 373                         network_flush_cache
 374                         network_find_wan iface
 375                         if [ -n "${iface}" ] && "${ban_ubuscmd}" -t 10 wait_for network.interface."${iface}" >/dev/null 2>&1; then
 376                                 ban_protov4="1"
 377                                 ban_ifv4="${iface}"
 378                                 uci_set banip global ban_protov4 "1"
 379                                 uci_add_list banip global ban_ifv4 "${iface}"
 380                                 f_log "info" "add IPv4 interface '${iface}' to config"
 381                         fi
 382                 fi
 383                 if [ -z "${ban_ifv6}" ]; then
 384                         network_flush_cache
 385                         network_find_wan6 iface
 386                         if [ -n "${iface}" ] && "${ban_ubuscmd}" -t 10 wait_for network.interface."${iface}" >/dev/null 2>&1; then
 387                                 ban_protov6="1"
 388                                 ban_ifv6="${iface}"
 389                                 uci_set banip global ban_protov6 "1"
 390                                 uci_add_list banip global ban_ifv6 "${iface}"
 391                                 f_log "info" "add IPv6 interface '${iface}' to config"
 392                         fi
 393                 fi
 394         fi
 395         if [ -n "$(uci -q changes "banip")" ]; then
 396                 update="1"
 397                 uci_commit "banip"
 398         else
 399                 ban_ifv4="${ban_ifv4%%?}"
 400                 ban_ifv6="${ban_ifv6%%?}"
 401                 for iface in ${ban_ifv4} ${ban_ifv6}; do
 402                         if ! "${ban_ubuscmd}" -t 10 wait_for network.interface."${iface}" >/dev/null 2>&1; then
 403                                 f_log "err" "no wan interface '${iface}'"
 404                         fi
 405                 done
 406         fi
 407         [ -z "${ban_ifv4}" ] && [ -z "${ban_ifv6}" ] && f_log "err" "no wan interfaces"
 408
 409         f_log "debug" "f_getif     ::: auto/update: ${ban_autodetect}/${update}, interfaces (4/6): ${ban_ifv4}/${ban_ifv6}, protocols (4/6): ${ban_protov4}/${ban_protov6}"
 410 }
 411
 412 # get wan devices
 413 #
 414 f_getdev() {
 415         local dev iface update="0" cnt="0" cnt_max="30"
 416
 417         if [ "${ban_autodetect}" = "1" ]; then
 418                 while [ "${cnt}" -lt "${cnt_max}" ] && [ -z "${ban_dev}" ]; do
 419                         network_flush_cache
 420                         for iface in ${ban_ifv4} ${ban_ifv6}; do
 421                                 network_get_device dev "${iface}"
 422                                 if [ -n "${dev}" ] && ! printf " %s " "${ban_dev}" | "${ban_grepcmd}" -q " ${dev} "; then
 423                                         ban_dev="${ban_dev}${dev} "
 424                                         uci_add_list banip global ban_dev "${dev}"
 425                                         f_log "info" "add device '${dev}' to config"
 426                                 fi
 427                         done
 428                         cnt="$((cnt + 1))"
 429                         sleep 1
 430                 done
 431         fi
 432         if [ -n "$(uci -q changes "banip")" ]; then
 433                 update="1"
 434                 uci_commit "banip"
 435         fi
 436         ban_dev="${ban_dev%%?}"
 437         [ -z "${ban_dev}" ] && f_log "err" "no wan devices"
 438
 439         f_log "debug" "f_getdev    ::: auto/update: ${ban_autodetect}/${update}, wan_devices: ${ban_dev}, cnt: ${cnt}"
 440 }
 441
 442 # get local uplink
 443 #
 444 f_getuplink() {
 445         local uplink iface ip update="0"
 446
 447         if [ "${ban_autoallowlist}" = "1" ] && [ "${ban_autoallowuplink}" != "disable" ]; then
 448                 for iface in ${ban_ifv4} ${ban_ifv6}; do
 449                         network_flush_cache
 450                         if [ "${ban_autoallowuplink}" = "subnet" ]; then
 451                                 network_get_subnet uplink "${iface}"
 452                         elif [ "${ban_autoallowuplink}" = "ip" ]; then
 453                                 network_get_ipaddr uplink "${iface}"
 454                         fi
 455                         if [ -n "${uplink}" ] && ! printf " %s " "${ban_uplink}" | "${ban_grepcmd}" -q " ${uplink} "; then
 456                                 ban_uplink="${ban_uplink}${uplink} "
 457                         fi
 458                         if [ "${ban_autoallowuplink}" = "subnet" ]; then
 459                                 network_get_subnet6 uplink "${iface}"
 460                         elif [ "${ban_autoallowuplink}" = "ip" ]; then
 461                                 network_get_ipaddr6 uplink "${iface}"
 462                         fi
 463                         if [ -n "${uplink}" ] && ! printf " %s " "${ban_uplink}" | "${ban_grepcmd}" -q " ${uplink} "; then
 464                                 ban_uplink="${ban_uplink}${uplink} "
 465                         fi
 466                 done
 467                 for ip in ${ban_uplink}; do
 468                         if ! "${ban_grepcmd}" -q "${ip} " "${ban_allowlist}"; then
 469                                 if [ "${update}" = "0" ]; then
 470                                         "${ban_sedcmd}" -i "/# uplink added on /d" "${ban_allowlist}"
 471                                 fi
 472                                 printf "%-42s%s\n" "${ip}" "# uplink added on $(date "+%Y-%m-%d %H:%M:%S")" >>"${ban_allowlist}"
 473                                 f_log "info" "add uplink '${ip}' to local allowlist"
 474                                 update="1"
 475                         fi
 476                 done
 477                 ban_uplink="${ban_uplink%%?}"
 478         elif [ "${ban_autoallowlist}" = "1" ] && [ "${ban_autoallowuplink}" = "disable" ]; then
 479                 "${ban_sedcmd}" -i "/# uplink added on /d" "${ban_allowlist}"
 480                 update="1"
 481         fi
 482
 483         f_log "debug" "f_getuplink ::: auto/update: ${ban_autoallowlist}/${update}, uplink: ${ban_uplink:-"-"}"
 484 }
 485
 486 # get feed information
 487 #
 488 f_getfeed() {
 489         json_init
 490         if [ -s "${ban_customfeedfile}" ]; then
 491                 if json_load_file "${ban_customfeedfile}" >/dev/null 2>&1; then
 492                         return
 493                 else
 494                         f_log "info" "can't load banIP custom feed file"
 495                 fi
 496         fi
 497         if [ -s "${ban_feedfile}" ] && json_load_file "${ban_feedfile}" >/dev/null 2>&1; then
 498                 return
 499         else
 500                 f_log "err" "can't load banIP feed file"
 501         fi
 502 }
 503
 504 # get Set elements
 505 #
 506 f_getelements() {
 507         local file="${1}"
 508
 509         [ -s "${file}" ] && printf "%s" "elements={ $("${ban_catcmd}" "${file}" 2>/dev/null) };"
 510 }
 511
 512 # handle etag http header
 513 #
 514 f_etag() {
 515         local http_head http_code etag_id etag_rc out_rc="4" feed="${1}" feed_url="${2}" feed_suffix="${3}"
 516
 517         if [ -n "${ban_etagparm}" ]; then
 518                 [ ! -f "${ban_backupdir}/banIP.etag" ] && : >"${ban_backupdir}/banIP.etag"
 519                 http_head="$("${ban_fetchcmd}" ${ban_etagparm} "${feed_url}" 2>&1)"
 520                 http_code="$(printf "%s" "${http_head}" | "${ban_awkcmd}" 'tolower($0)~/^http\/[0123\.]+ /{printf "%s",$2}')"
 521                 etag_id="$(printf "%s" "${http_head}" | "${ban_awkcmd}" 'tolower($0)~/^[[:space:]]*etag: /{gsub("\"","");printf "%s",$2}')"
 522                 etag_rc="${?}"
 523
 524                 if [ "${http_code}" = "404" ] || { [ "${etag_rc}" = "0" ] && [ -n "${etag_id}" ] && "${ban_grepcmd}" -q "^${feed}${feed_suffix}[[:space:]]\+${etag_id}\$" "${ban_backupdir}/banIP.etag"; }; then
 525                         out_rc="0"
 526                 elif [ "${etag_rc}" = "0" ] && [ -n "${etag_id}" ] && ! "${ban_grepcmd}" -q "^${feed}${feed_suffix}[[:space:]]\+${etag_id}\$" "${ban_backupdir}/banIP.etag"; then
 527                         "${ban_sedcmd}" -i "/^${feed}${feed_suffix}/d" "${ban_backupdir}/banIP.etag"
 528                         printf "%-20s%s\n" "${feed}${feed_suffix}" "${etag_id}" >>"${ban_backupdir}/banIP.etag"
 529                         out_rc="2"
 530                 fi
 531         fi
 532
 533         f_log "debug" "f_etag      ::: feed: ${feed}, suffix: ${feed_suffix:-"-"}, http_code: ${http_code:-"-"}, etag_id: ${etag_id:-"-"} , etag_rc: ${etag_rc:-"-"}, rc: ${out_rc}"
 534         return "${out_rc}"
 535 }
 536
 537 # build initial nft file with base table, chains and rules
 538 #
 539 f_nftinit() {
 540         local wan_dev vlan_allow vlan_block feed_log feed_rc file="${1}"
 541
 542         wan_dev="$(printf "%s" "${ban_dev}" | "${ban_sedcmd}" 's/^/\"/;s/$/\"/;s/ /\", \"/g')"
 543         [ -n "${ban_vlanallow}" ] && vlan_allow="$(printf "%s" "${ban_vlanallow%%?}" | "${ban_sedcmd}" 's/^/\"/;s/$/\"/;s/ /\", \"/g')"
 544         [ -n "${ban_vlanblock}" ] && vlan_block="$(printf "%s" "${ban_vlanblock%%?}" | "${ban_sedcmd}" 's/^/\"/;s/$/\"/;s/ /\", \"/g')"
 545
 546         {
 547                 # nft header (tables and chains)
 548                 #
 549                 printf "%s\n\n" "#!/usr/sbin/nft -f"
 550                 if "${ban_nftcmd}" -t list set inet banIP allowlistv4MAC >/dev/null 2>&1; then
 551                         printf "%s\n" "delete table inet banIP"
 552                 fi
 553                 printf "%s\n" "add table inet banIP"
 554                 printf "%s\n" "add chain inet banIP wan-input { type filter hook input priority ${ban_nftpriority}; policy accept; }"
 555                 printf "%s\n" "add chain inet banIP wan-forward { type filter hook forward priority ${ban_nftpriority}; policy accept; }"
 556                 printf "%s\n" "add chain inet banIP lan-forward { type filter hook forward priority ${ban_nftpriority}; policy accept; }"
 557                 printf "%s\n" "add chain inet banIP reject-chain"
 558
 559                 # default reject rules
 560                 #
 561                 printf "%s\n" "add rule inet banIP reject-chain meta l4proto tcp reject with tcp reset"
 562                 printf "%s\n" "add rule inet banIP reject-chain reject"
 563
 564                 # default wan-input rules
 565                 #
 566                 printf "%s\n" "add rule inet banIP wan-input ct state established,related counter accept"
 567                 printf "%s\n" "add rule inet banIP wan-input iifname != { ${wan_dev} } counter accept"
 568                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv4 udp sport 67-68 udp dport 67-68 counter accept"
 569                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv6 udp sport 547 udp dport 546 counter accept"
 570                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv4 icmp type { echo-request } limit rate 1000/second counter accept"
 571                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv6 icmpv6 type { echo-request } limit rate 1000/second counter accept"
 572                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv6 icmpv6 type { nd-neighbor-advert, nd-neighbor-solicit, nd-router-advert} limit rate 1000/second ip6 hoplimit 1 counter accept"
 573                 printf "%s\n" "add rule inet banIP wan-input meta nfproto ipv6 icmpv6 type { nd-neighbor-advert, nd-neighbor-solicit, nd-router-advert} limit rate 1000/second ip6 hoplimit 255 counter accept"
 574
 575                 # default wan-forward rules
 576                 #
 577                 printf "%s\n" "add rule inet banIP wan-forward ct state established,related counter accept"
 578                 printf "%s\n" "add rule inet banIP wan-forward iifname != { ${wan_dev} } counter accept"
 579
 580                 # default lan-forward rules
 581                 #
 582                 printf "%s\n" "add rule inet banIP lan-forward ct state established,related counter accept"
 583                 printf "%s\n" "add rule inet banIP lan-forward oifname != { ${wan_dev} } counter accept"
 584                 [ -n "${vlan_allow}" ] && printf "%s\n" "add rule inet banIP lan-forward iifname { ${vlan_allow} } counter accept"
 585                 [ -n "${vlan_block}" ] && printf "%s\n" "add rule inet banIP lan-forward iifname { ${vlan_block} } counter goto reject-chain"
 586         } >"${file}"
 587
 588         # load initial banIP table within nft (atomic load)
 589         #
 590         feed_log="$("${ban_nftcmd}" -f "${file}" 2>&1)"
 591         feed_rc="${?}"
 592
 593         f_log "debug" "f_nftinit   ::: wan_dev: ${wan_dev}, vlan_allow: ${vlan_allow:-"-"}, vlan_block: ${vlan_block:-"-"}, priority: ${ban_nftpriority}, policy: ${ban_nftpolicy}, loglevel: ${ban_nftloglevel}, rc: ${feed_rc:-"-"}, log: ${feed_log:-"-"}"
 594         return "${feed_rc}"
 595 }
 596
 597 # handle downloads
 598 #
 599 f_down() {
 600         local log_input log_forwardwan log_forwardlan start_ts end_ts tmp_raw tmp_load tmp_file split_file ruleset_raw handle rc etag_rc
 601         local cnt_set cnt_dl restore_rc feed_direction feed_rc feed_log feed="${1}" proto="${2}" feed_url="${3}" feed_rule="${4}" feed_flag="${5}"
 602
 603         start_ts="$(date +%s)"
 604         feed="${feed}v${proto}"
 605         tmp_load="${ban_tmpfile}.${feed}.load"
 606         tmp_raw="${ban_tmpfile}.${feed}.raw"
 607         tmp_split="${ban_tmpfile}.${feed}.split"
 608         tmp_file="${ban_tmpfile}.${feed}.file"
 609         tmp_flush="${ban_tmpfile}.${feed}.flush"
 610         tmp_nft="${ban_tmpfile}.${feed}.nft"
 611         tmp_allow="${ban_tmpfile}.${feed%v*}"
 612
 613         [ "${ban_loginput}" = "1" ] && log_input="log level ${ban_nftloglevel} prefix \"banIP/inp-wan/${ban_blocktype}/${feed}: \""
 614         [ "${ban_logforwardwan}" = "1" ] && log_forwardwan="log level ${ban_nftloglevel} prefix \"banIP/fwd-wan/${ban_blocktype}/${feed}: \""
 615         [ "${ban_logforwardlan}" = "1" ] && log_forwardlan="log level ${ban_nftloglevel} prefix \"banIP/fwd-lan/reject/${feed}: \""
 616
 617         # set feed block direction
 618         #
 619         if [ "${ban_blockpolicy}" = "input" ]; then
 620                 if ! printf "%s" "${ban_blockinput}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 621                         ! printf "%s" "${ban_blockforwardwan}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 622                         ! printf "%s" "${ban_blockforwardlan}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 623                         ban_blockinput="${ban_blockinput} ${feed%v*}"
 624                 fi
 625         elif [ "${ban_blockpolicy}" = "forwardwan" ]; then
 626                 if ! printf "%s" "${ban_blockinput}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 627                         ! printf "%s" "${ban_blockforwardwan}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 628                         ! printf "%s" "${ban_blockforwardlan}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 629                         ban_blockforwardwan="${ban_blockforwardwan} ${feed%v*}"
 630                 fi
 631         elif [ "${ban_blockpolicy}" = "forwardlan" ]; then
 632                 if ! printf "%s" "${ban_blockinput}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 633                         ! printf "%s" "${ban_blockforwardwan}" | "${ban_grepcmd}" -q "${feed%v*}" &&
 634                         ! printf "%s" "${ban_blockforwardlan}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 635                         ban_blockforwardlan="${ban_blockforwardlan} ${feed%v*}"
 636                 fi
 637         fi
 638         if printf "%s" "${ban_blockinput}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 639                 feed_direction="input"
 640         fi
 641         if printf "%s" "${ban_blockforwardwan}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 642                 feed_direction="${feed_direction} forwardwan"
 643         fi
 644         if printf "%s" "${ban_blockforwardlan}" | "${ban_grepcmd}" -q "${feed%v*}"; then
 645                 feed_direction="${feed_direction} forwardlan"
 646         fi
 647
 648         # chain/rule maintenance
 649         #
 650         if [ "${ban_action}" = "reload" ] && "${ban_nftcmd}" -t list set inet banIP "${feed}" >/dev/null 2>&1; then
 651                 ruleset_raw="$("${ban_nftcmd}" -tj list ruleset 2>/dev/null)"
 652                 {
 653                         printf "%s\n" "flush set inet banIP ${feed}"
 654                         handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-input\"][@.expr[0].match.right=\"@${feed}\"].handle")"
 655                         [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP wan-input handle ${handle}"
 656                         handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-forward\"][@.expr[0].match.right=\"@${feed}\"].handle")"
 657                         [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP wan-forward handle ${handle}"
 658                         handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"lan-forward\"][@.expr[0].match.right=\"@${feed}\"].handle")"
 659                         [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP lan-forward handle ${handle}"
 660                 } >"${tmp_flush}"
 661         fi
 662
 663         # restore local backups
 664         #
 665         if { [ "${ban_action}" != "reload" ] || [ "${feed_url}" = "local" ] || [ -n "${ban_etagparm}" ]; } && [ "${feed%v*}" != "allowlist" ] && [ "${feed%v*}" != "blocklist" ]; then
 666                 if [ -n "${ban_etagparm}" ] && [ "${ban_action}" = "reload" ] && [ "${feed_url}" != "local" ]; then
 667                         etag_rc="0"
 668                         if [ "${feed%v*}" = "country" ]; then
 669                                 for country in ${ban_country}; do
 670                                         f_etag "${feed}" "${feed_url}${country}-aggregated.zone" ".${country}"
 671                                         rc="${?}"
 672                                         [ "${rc}" = "4" ] && break
 673                                         etag_rc="$((etag_rc + rc))"
 674                                 done
 675                         elif [ "${feed%v*}" = "asn" ]; then
 676                                 for asn in ${ban_asn}; do
 677                                         f_etag "${feed}" "${feed_url}AS${asn}" ".{asn}"
 678                                         rc="${?}"
 679                                         [ "${rc}" = "4" ] && break
 680                                         etag_rc="$((etag_rc + rc))"
 681                                 done
 682                         else
 683                                 f_etag "${feed}" "${feed_url}"
 684                                 etag_rc="${?}"
 685                         fi
 686                 fi
 687                 if [ "${etag_rc}" = "0" ] || [ "${ban_action}" != "reload" ] || [ "${feed_url}" = "local" ]; then
 688                         f_restore "${feed}" "${feed_url}" "${tmp_load}" "${etag_rc}"
 689                         restore_rc="${?}"
 690                         feed_rc="${restore_rc}"
 691                 fi
 692         fi
 693
 694         # prepare local allowlist
 695         #
 696         if [ "${feed%v*}" = "allowlist" ] && [ ! -f "${tmp_allow}" ]; then
 697                 "${ban_catcmd}" "${ban_allowlist}" 2>/dev/null >"${tmp_allow}"
 698                 for feed_url in ${ban_allowurl}; do
 699                         feed_log="$("${ban_fetchcmd}" ${ban_fetchparm} "${tmp_load}" "${feed_url}" 2>&1)"
 700                         feed_rc="${?}"
 701                         if [ "${feed_rc}" = "0" ] && [ -s "${tmp_load}" ]; then
 702                                 "${ban_catcmd}" "${tmp_load}" 2>/dev/null >>"${tmp_allow}"
 703                         else
 704                                 f_log "info" "download for feed '${feed%v*}' failed (rc: ${feed_rc:-"-"}/log: ${feed_log})"
 705                         fi
 706                 done
 707         fi
 708
 709         # handle local feeds
 710         #
 711         if [ "${feed%v*}" = "allowlist" ]; then
 712                 {
 713                         printf "%s\n\n" "#!/usr/sbin/nft -f"
 714                         [ -s "${tmp_flush}" ] && "${ban_catcmd}" "${tmp_flush}"
 715                         if [ "${proto}" = "4MAC" ]; then
 716                                 "${ban_awkcmd}" '/^([0-9A-f]{2}:){5}[0-9A-f]{2}(\/([0-9]|[1-3][0-9]|4[0-8]))?([[:space:]]+([0-9]{1,3}\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?[[:space:]]*$|[[:space:]]+$|$)/{if(!$2)$2="0.0.0.0/0";if(!seen[$1]++)printf "%s . %s, ",tolower($1),$2}' "${tmp_allow}" >"${tmp_file}"
 717                                 printf "%s\n" "add set inet banIP ${feed} { type ether_addr . ipv4_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 718                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ether saddr . ip saddr @${feed} counter accept"
 719                         elif [ "${proto}" = "6MAC" ]; then
 720                                 "${ban_awkcmd}" '/^([0-9A-f]{2}:){5}[0-9A-f]{2}(\/([0-9]|[1-3][0-9]|4[0-8]))?([[:space:]]+([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?[[:space:]]*$|[[:space:]]+$|$)/{if(!$2)$2="::/0";if(!seen[$1]++)printf "%s . %s, ",tolower($1),$2}' "${tmp_allow}" >"${tmp_file}"
 721                                 printf "%s\n" "add set inet banIP ${feed} { type ether_addr . ipv6_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 722                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ether saddr . ip6 saddr @${feed} counter accept"
 723                         elif [ "${proto}" = "4" ]; then
 724                                 "${ban_awkcmd}" '/^(([0-9]{1,3}\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]].*|$)/{printf "%s, ",$1}' "${tmp_allow}" >"${tmp_file}"
 725                                 printf "%s\n" "add set inet banIP ${feed} { type ipv4_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 726                                 if [ -z "${feed_direction##*input*}" ]; then
 727                                         if [ "${ban_allowlistonly}" = "1" ]; then
 728                                                 if [ "${ban_blocktype}" = "reject" ]; then
 729                                                         printf "%s\n" "add rule inet banIP wan-input ip saddr != @${feed} ${log_input} counter goto reject-chain"
 730                                                 else
 731                                                         printf "%s\n" "add rule inet banIP wan-input ip saddr != @${feed} ${log_input} counter drop"
 732                                                 fi
 733                                         else
 734                                                 printf "%s\n" "add rule inet banIP wan-input ip saddr @${feed} counter accept"
 735                                         fi
 736                                 fi
 737                                 if [ -z "${feed_direction##*forwardwan*}" ]; then
 738                                         if [ "${ban_allowlistonly}" = "1" ]; then
 739                                                 if [ "${ban_blocktype}" = "reject" ]; then
 740                                                         printf "%s\n" "add rule inet banIP wan-forward ip saddr != @${feed} ${log_forwardwan} counter goto reject-chain"
 741                                                 else
 742                                                         printf "%s\n" "add rule inet banIP wan-forward ip saddr != @${feed} ${log_forwardwan} counter drop"
 743                                                 fi
 744                                         else
 745                                                 printf "%s\n" "add rule inet banIP wan-forward ip saddr @${feed} counter accept"
 746                                         fi
 747                                 fi
 748                                 if [ -z "${feed_direction##*forwardlan*}" ]; then
 749                                         if [ "${ban_allowlistonly}" = "1" ]; then
 750                                                 printf "%s\n" "add rule inet banIP lan-forward ip daddr != @${feed} ${log_forwardlan} counter goto reject-chain"
 751                                         else
 752                                                 printf "%s\n" "add rule inet banIP lan-forward ip daddr @${feed} counter accept"
 753                                         fi
 754                                 fi
 755                         elif [ "${proto}" = "6" ]; then
 756                                 "${ban_awkcmd}" '!/^([0-9A-f]{2}:){5}[0-9A-f]{2}.*/{printf "%s\n",$1}' "${tmp_allow}" |
 757                                         "${ban_awkcmd}" '/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]].*|$)/{printf "%s, ",tolower($1)}' >"${tmp_file}"
 758                                 printf "%s\n" "add set inet banIP ${feed} { type ipv6_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 759                                 if [ -z "${feed_direction##*input*}" ]; then
 760                                         if [ "${ban_allowlistonly}" = "1" ]; then
 761                                                 if [ "${ban_blocktype}" = "reject" ]; then
 762                                                         printf "%s\n" "add rule inet banIP wan-input ip6 saddr != @${feed} ${log_input} counter goto reject-chain"
 763                                                 else
 764                                                         printf "%s\n" "add rule inet banIP wan-input ip6 saddr != @${feed} ${log_input} counter drop"
 765                                                 fi
 766                                         else
 767                                                 printf "%s\n" "add rule inet banIP wan-input ip6 saddr @${feed} counter accept"
 768                                         fi
 769                                 fi
 770                                 if [ -z "${feed_direction##*forwardwan*}" ]; then
 771                                         if [ "${ban_allowlistonly}" = "1" ]; then
 772                                                 if [ "${ban_blocktype}" = "reject" ]; then
 773                                                         printf "%s\n" "add rule inet banIP wan-forward ip6 saddr != @${feed} ${log_forwardwan} counter goto reject-chain"
 774                                                 else
 775                                                         printf "%s\n" "add rule inet banIP wan-forward ip6 saddr != @${feed} ${log_forwardwan} counter drop"
 776                                                 fi
 777                                         else
 778                                                 printf "%s\n" "add rule inet banIP wan-forward ip6 saddr @${feed} counter accept"
 779                                         fi
 780                                 fi
 781                                 if [ -z "${feed_direction##*forwardlan*}" ]; then
 782                                         if [ "${ban_allowlistonly}" = "1" ]; then
 783                                                 printf "%s\n" "add rule inet banIP lan-forward ip6 daddr != @${feed} ${log_forwardlan} counter goto reject-chain"
 784                                         else
 785                                                 printf "%s\n" "add rule inet banIP lan-forward ip6 daddr @${feed} counter accept"
 786                                         fi
 787                                 fi
 788                         fi
 789                 } >"${tmp_nft}"
 790                 feed_rc="0"
 791         elif [ "${feed%v*}" = "blocklist" ]; then
 792                 {
 793                         printf "%s\n\n" "#!/usr/sbin/nft -f"
 794                         [ -s "${tmp_flush}" ] && "${ban_catcmd}" "${tmp_flush}"
 795                         if [ "${proto}" = "4MAC" ]; then
 796                                 "${ban_awkcmd}" '/^([0-9A-f]{2}:){5}[0-9A-f]{2}(\/([0-9]|[1-3][0-9]|4[0-8]))?([[:space:]]+([0-9]{1,3}\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?[[:space:]]*$|[[:space:]]+$|$)/{if(!$2)$2="0.0.0.0/0";if(!seen[$1]++)printf "%s . %s, ",tolower($1),$2}' "${ban_blocklist}" >"${tmp_file}"
 797                                 printf "%s\n" "add set inet banIP ${feed} { type ether_addr . ipv4_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 798                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ether saddr . ip saddr @${feed} counter goto reject-chain"
 799                         elif [ "${proto}" = "6MAC" ]; then
 800                                 "${ban_awkcmd}" '/^([0-9A-f]{2}:){5}[0-9A-f]{2}(\/([0-9]|[1-3][0-9]|4[0-8]))?([[:space:]]+([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?[[:space:]]*$|[[:space:]]+$|$)/{if(!$2)$2="::/0";if(!seen[$1]++)printf "%s . %s, ",tolower($1),$2}' "${ban_blocklist}" >"${tmp_file}"
 801                                 printf "%s\n" "add set inet banIP ${feed} { type ether_addr . ipv6_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 802                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ether saddr . ip6 saddr @${feed} counter goto reject-chain"
 803                         elif [ "${proto}" = "4" ]; then
 804                                 if [ "${ban_deduplicate}" = "1" ]; then
 805                                         "${ban_awkcmd}" '/^(([0-9]{1,3}\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]].*|$)/{printf "%s,\n",$1}' "${ban_blocklist}" >"${tmp_raw}"
 806                                         "${ban_awkcmd}" 'NR==FNR{member[$0];next}!($0 in member)' "${ban_tmpfile}.deduplicate" "${tmp_raw}" 2>/dev/null >"${tmp_split}"
 807                                         "${ban_awkcmd}" 'BEGIN{FS="[ ,]"}NR==FNR{member[$1];next}!($1 in member)' "${ban_tmpfile}.deduplicate" "${ban_blocklist}" 2>/dev/null >"${tmp_raw}"
 808                                         "${ban_catcmd}" "${tmp_raw}" 2>/dev/null >"${ban_blocklist}"
 809                                 else
 810                                         "${ban_awkcmd}" '/^(([0-9]{1,3}\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?)([[:space:]].*|$)/{printf "%s,\n",$1}' "${ban_blocklist}" >"${tmp_split}"
 811                                 fi
 812                                 "${ban_awkcmd}" '{ORS=" ";print}' "${tmp_split}" 2>/dev/null >"${tmp_file}"
 813                                 printf "%s\n" "add set inet banIP ${feed} { type ipv4_addr; flags interval, timeout; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 814                                 if [ "${ban_blocktype}" = "reject" ]; then
 815                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip saddr @${feed} ${log_input} counter goto reject-chain"
 816                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip saddr @${feed} ${log_forwardwan} counter goto reject-chain"
 817                                 else
 818                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip saddr @${feed} ${log_input} counter drop"
 819                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip saddr @${feed} ${log_forwardwan} counter drop"
 820                                 fi
 821                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ip daddr @${feed} ${log_forwardlan} counter goto reject-chain"
 822                         elif [ "${proto}" = "6" ]; then
 823                                 if [ "${ban_deduplicate}" = "1" ]; then
 824                                         "${ban_awkcmd}" '!/^([0-9A-f]{2}:){5}[0-9A-f]{2}.*/{printf "%s\n",$1}' "${ban_blocklist}" |
 825                                                 "${ban_awkcmd}" '/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]].*|$)/{printf "%s,\n",tolower($1)}' >"${tmp_raw}"
 826                                         "${ban_awkcmd}" 'NR==FNR{member[$0];next}!($0 in member)' "${ban_tmpfile}.deduplicate" "${tmp_raw}" 2>/dev/null >"${tmp_split}"
 827                                         "${ban_awkcmd}" 'BEGIN{FS="[ ,]"}NR==FNR{member[$1];next}!($1 in member)' "${ban_tmpfile}.deduplicate" "${ban_blocklist}" 2>/dev/null >"${tmp_raw}"
 828                                         "${ban_catcmd}" "${tmp_raw}" 2>/dev/null >"${ban_blocklist}"
 829                                 else
 830                                         "${ban_awkcmd}" '!/^([0-9A-f]{2}:){5}[0-9A-f]{2}.*/{printf "%s\n",$1}' "${ban_blocklist}" |
 831                                                 "${ban_awkcmd}" '/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]].*|$)/{printf "%s,\n",tolower($1)}' >"${tmp_split}"
 832                                 fi
 833                                 "${ban_awkcmd}" '{ORS=" ";print}' "${tmp_split}" 2>/dev/null >"${tmp_file}"
 834                                 printf "%s\n" "add set inet banIP ${feed} { type ipv6_addr; flags interval, timeout; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}") }"
 835                                 if [ "${ban_blocktype}" = "reject" ]; then
 836                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip6 saddr @${feed} ${log_input} counter goto reject-chain"
 837                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip6 saddr @${feed} ${log_forwardwan} counter goto reject-chain"
 838                                 else
 839                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip6 saddr @${feed} ${log_input} counter drop"
 840                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip6 saddr @${feed} ${log_forwardwan} counter drop"
 841                                 fi
 842                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ip6 daddr @${feed} ${log_forwardlan} counter goto reject-chain"
 843                         fi
 844                 } >"${tmp_nft}"
 845                 feed_rc="0"
 846
 847         # handle external feeds
 848         #
 849         elif [ "${restore_rc}" != "0" ] && [ "${feed_url}" != "local" ]; then
 850                 # handle country downloads
 851                 #
 852                 if [ "${feed%v*}" = "country" ]; then
 853                         for country in ${ban_country}; do
 854                                 feed_log="$("${ban_fetchcmd}" ${ban_fetchparm} "${tmp_raw}" "${feed_url}${country}-aggregated.zone" 2>&1)"
 855                                 feed_rc="${?}"
 856                                 [ "${feed_rc}" = "0" ] && "${ban_catcmd}" "${tmp_raw}" 2>/dev/null >>"${tmp_load}"
 857                         done
 858                         rm -f "${tmp_raw}"
 859
 860                 # handle asn downloads
 861                 #
 862                 elif [ "${feed%v*}" = "asn" ]; then
 863                         for asn in ${ban_asn}; do
 864                                 feed_log="$("${ban_fetchcmd}" ${ban_fetchparm} "${tmp_raw}" "${feed_url}AS${asn}" 2>&1)"
 865                                 feed_rc="${?}"
 866                                 [ "${feed_rc}" = "0" ] && "${ban_catcmd}" "${tmp_raw}" 2>/dev/null >>"${tmp_load}"
 867                         done
 868                         rm -f "${tmp_raw}"
 869
 870                 # handle compressed downloads
 871                 #
 872                 elif [ -n "${feed_flag}" ]; then
 873                         case "${feed_flag}" in
 874                                 "gz")
 875                                         feed_log="$("${ban_fetchcmd}" ${ban_fetchparm} "${tmp_raw}" "${feed_url}" 2>&1)"
 876                                         feed_rc="${?}"
 877                                         [ "${feed_rc}" = "0" ] && "${ban_zcatcmd}" "${tmp_raw}" 2>/dev/null >"${tmp_load}"
 878                                         rm -f "${tmp_raw}"
 879                                         ;;
 880                         esac
 881
 882                 # handle normal downloads
 883                 #
 884                 else
 885                         feed_log="$("${ban_fetchcmd}" ${ban_fetchparm} "${tmp_load}" "${feed_url}" 2>&1)"
 886                         feed_rc="${?}"
 887                 fi
 888         fi
 889         [ "${feed_rc}" != "0" ] && f_log "info" "download for feed '${feed}' failed (rc: ${feed_rc:-"-"}/log: ${feed_log})"
 890
 891         # backup/restore
 892         #
 893         if [ "${restore_rc}" != "0" ] && [ "${feed_rc}" = "0" ] && [ "${feed_url}" != "local" ] && [ ! -s "${tmp_nft}" ]; then
 894                 f_backup "${feed}" "${tmp_load}"
 895                 feed_rc="${?}"
 896         elif [ -z "${restore_rc}" ] && [ "${feed_rc}" != "0" ] && [ "${feed_url}" != "local" ] && [ ! -s "${tmp_nft}" ]; then
 897                 f_restore "${feed}" "${feed_url}" "${tmp_load}" "${feed_rc}"
 898                 feed_rc="${?}"
 899         fi
 900
 901         # build nft file with Sets and rules for regular downloads
 902         #
 903         if [ "${feed_rc}" = "0" ] && [ ! -s "${tmp_nft}" ]; then
 904                 # deduplicate Sets
 905                 #
 906                 if [ "${ban_deduplicate}" = "1" ] && [ "${feed_url}" != "local" ]; then
 907                         "${ban_awkcmd}" "${feed_rule}" "${tmp_load}" 2>/dev/null >"${tmp_raw}"
 908                         "${ban_awkcmd}" 'NR==FNR{member[$0];next}!($0 in member)' "${ban_tmpfile}.deduplicate" "${tmp_raw}" 2>/dev/null | tee -a "${ban_tmpfile}.deduplicate" >"${tmp_split}"
 909                 else
 910                         "${ban_awkcmd}" "${feed_rule}" "${tmp_load}" 2>/dev/null >"${tmp_split}"
 911                 fi
 912                 feed_rc="${?}"
 913                 # split Sets
 914                 #
 915                 if [ "${feed_rc}" = "0" ]; then
 916                         if [ -n "${ban_splitsize//[![:digit]]/}" ] && [ "${ban_splitsize//[![:digit]]/}" -gt "0" ]; then
 917                                 if ! "${ban_awkcmd}" "NR%${ban_splitsize//[![:digit]]/}==1{file=\"${tmp_file}.\"++i;}{ORS=\" \";print > file}" "${tmp_split}" 2>/dev/null; then
 918                                         rm -f "${tmp_file}".*
 919                                         f_log "info" "can't split Set '${feed}' to size '${ban_splitsize//[![:digit]]/}'"
 920                                 fi
 921                         else
 922                                 "${ban_awkcmd}" '{ORS=" ";print}' "${tmp_split}" 2>/dev/null >"${tmp_file}.1"
 923                         fi
 924                         feed_rc="${?}"
 925                 fi
 926                 rm -f "${tmp_raw}" "${tmp_load}"
 927                 if [ "${feed_rc}" = "0" ] && [ "${proto}" = "4" ]; then
 928                         {
 929                                 # nft header (IPv4 Set)
 930                                 #
 931                                 printf "%s\n\n" "#!/usr/sbin/nft -f"
 932                                 [ -s "${tmp_flush}" ] && "${ban_catcmd}" "${tmp_flush}"
 933                                 printf "%s\n" "add set inet banIP ${feed} { type ipv4_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}.1") }"
 934
 935                                 # input and forward rules
 936                                 #
 937                                 if [ "${ban_blocktype}" = "reject" ]; then
 938                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip saddr @${feed} ${log_input} counter goto reject-chain"
 939                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip saddr @${feed} ${log_forwardwan} counter goto reject-chain"
 940                                 else
 941                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip saddr @${feed} ${log_input} counter drop"
 942                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip saddr @${feed} ${log_forwardwan} counter drop"
 943                                 fi
 944                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ip daddr @${feed} ${log_forwardlan} counter goto reject-chain"
 945                         } >"${tmp_nft}"
 946                 elif [ "${feed_rc}" = "0" ] && [ "${proto}" = "6" ]; then
 947                         {
 948                                 # nft header (IPv6 Set)
 949                                 #
 950                                 printf "%s\n\n" "#!/usr/sbin/nft -f"
 951                                 [ -s "${tmp_flush}" ] && "${ban_catcmd}" "${tmp_flush}"
 952                                 printf "%s\n" "add set inet banIP ${feed} { type ipv6_addr; flags interval; auto-merge; policy ${ban_nftpolicy}; $(f_getelements "${tmp_file}.1") }"
 953
 954                                 # input and forward rules
 955                                 #
 956                                 if [ "${ban_blocktype}" = "reject" ]; then
 957                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip6 saddr @${feed} ${log_input} counter goto reject-chain"
 958                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip6 saddr @${feed} ${log_forwardwan} counter goto reject-chain"
 959                                 else
 960                                         [ -z "${feed_direction##*input*}" ] && printf "%s\n" "add rule inet banIP wan-input ip6 saddr @${feed} ${log_input} counter drop"
 961                                         [ -z "${feed_direction##*forwardwan*}" ] && printf "%s\n" "add rule inet banIP wan-forward ip6 saddr @${feed} ${log_forwardwan} counter drop"
 962                                 fi
 963                                 [ -z "${feed_direction##*forwardlan*}" ] && printf "%s\n" "add rule inet banIP lan-forward ip6 daddr @${feed} ${log_forwardlan} counter goto reject-chain"
 964                         } >"${tmp_nft}"
 965                 fi
 966         fi
 967
 968         # load generated nft file in banIP table
 969         #
 970         if [ "${feed_rc}" = "0" ]; then
 971                 cnt_dl="$("${ban_awkcmd}" 'END{printf "%d",NR}' "${tmp_split}" 2>/dev/null)"
 972                 if [ "${cnt_dl:-"0"}" -gt "0" ] || [ "${feed_url}" = "local" ] || [ "${feed%v*}" = "allowlist" ] || [ "${feed%v*}" = "blocklist" ]; then
 973                         feed_log="$("${ban_nftcmd}" -f "${tmp_nft}" 2>&1)"
 974                         feed_rc="${?}"
 975
 976                         # load additional split files
 977                         #
 978                         if [ "${feed_rc}" = "0" ]; then
 979                                 for split_file in "${tmp_file}".*; do
 980                                         [ ! -f "${split_file}" ] && break
 981                                         if [ "${split_file##*.}" = "1" ]; then
 982                                                 rm -f "${split_file}"
 983                                                 continue
 984                                         fi
 985                                         if ! "${ban_nftcmd}" add element inet banIP "${feed}" "{ $("${ban_catcmd}" "${split_file}") }" >/dev/null 2>&1; then
 986                                                 f_log "info" "can't add split file '${split_file##*.}' to Set '${feed}'"
 987                                         fi
 988                                         rm -f "${split_file}"
 989                                 done
 990                                 if [ "${ban_debug}" = "1" ] && [ "${ban_reportelements}" = "1" ]; then
 991                                         cnt_set="$("${ban_nftcmd}" -j list set inet banIP "${feed}" 2>/dev/null | "${ban_jsoncmd}" -qe '@.nftables[*].set.elem[*]' | wc -l 2>/dev/null)"
 992                                 fi
 993                         fi
 994                 else
 995                         f_log "info" "skip empty feed '${feed}'"
 996                 fi
 997         fi
 998         rm -f "${tmp_split}" "${tmp_nft}"
 999         end_ts="$(date +%s)"
1000
1001         f_log "debug" "f_down      ::: feed: ${feed}, cnt_dl: ${cnt_dl:-"-"}, cnt_set: ${cnt_set:-"-"}, split_size: ${ban_splitsize:-"-"}, time: $((end_ts - start_ts)), rc: ${feed_rc:-"-"}, log: ${feed_log:-"-"}"
1002 }
1003
1004 # backup feeds
1005 #
1006 f_backup() {
1007         local backup_rc="4" feed="${1}" feed_file="${2}"
1008
1009         if [ -s "${feed_file}" ]; then
1010                 gzip -cf "${feed_file}" >"${ban_backupdir}/banIP.${feed}.gz"
1011                 backup_rc="${?}"
1012         fi
1013
1014         f_log "debug" "f_backup    ::: feed: ${feed}, file: banIP.${feed}.gz, rc: ${backup_rc}"
1015         return "${backup_rc}"
1016 }
1017
1018 # restore feeds
1019 #
1020 f_restore() {
1021         local tmp_feed restore_rc="4" feed="${1}" feed_url="${2}" feed_file="${3}" in_rc="${4}"
1022
1023         [ "${feed_url}" = "local" ] && tmp_feed="${feed%v*}v4" || tmp_feed="${feed}"
1024         if [ -s "${ban_backupdir}/banIP.${tmp_feed}.gz" ]; then
1025                 "${ban_zcatcmd}" "${ban_backupdir}/banIP.${tmp_feed}.gz" 2>/dev/null >"${feed_file}"
1026                 restore_rc="${?}"
1027         fi
1028
1029         f_log "debug" "f_restore   ::: feed: ${feed}, file: banIP.${tmp_feed}.gz, in_rc: ${in_rc:-"-"}, rc: ${restore_rc}"
1030         return "${restore_rc}"
1031 }
1032
1033 # remove disabled Sets
1034 #
1035 f_rmset() {
1036         local feedlist tmp_del ruleset_raw item table_sets handle del_set feed_log feed_rc
1037
1038         f_getfeed
1039         json_get_keys feedlist
1040         tmp_del="${ban_tmpfile}.final.delete"
1041         ruleset_raw="$("${ban_nftcmd}" -tj list ruleset 2>/dev/null)"
1042         table_sets="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -qe '@.nftables[@.set.table="banIP"].set.name')"
1043         {
1044                 printf "%s\n\n" "#!/usr/sbin/nft -f"
1045                 for item in ${table_sets}; do
1046                         if ! printf "%s" "allowlist blocklist ${ban_feed}" | "${ban_grepcmd}" -q "${item%v*}" ||
1047                                 ! printf "%s" "allowlist blocklist ${feedlist}" | "${ban_grepcmd}" -q "${item%v*}"; then
1048                                 del_set="${del_set}${item}, "
1049                                 rm -f "${ban_backupdir}/banIP.${item}.gz"
1050                                 printf "%s\n" "flush set inet banIP ${item}"
1051                                 handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-input\"][@.expr[0].match.right=\"@${item}\"].handle")"
1052                                 [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP wan-input handle ${handle}"
1053                                 handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-forward\"][@.expr[0].match.right=\"@${item}\"].handle")"
1054                                 [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP wan-forward handle ${handle}"
1055                                 handle="$(printf "%s\n" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"lan-forward\"][@.expr[0].match.right=\"@${item}\"].handle")"
1056                                 [ -n "${handle}" ] && printf "%s\n" "delete rule inet banIP lan-forward handle ${handle}"
1057                                 printf "%s\n\n" "delete set inet banIP ${item}"
1058                         fi
1059                 done
1060         } >"${tmp_del}"
1061
1062         if [ -n "${del_set}" ]; then
1063                 del_set="${del_set%%??}"
1064                 feed_log="$("${ban_nftcmd}" -f "${tmp_del}" 2>&1)"
1065                 feed_rc="${?}"
1066         fi
1067         rm -f "${tmp_del}"
1068
1069         f_log "debug" "f_rmset     ::: sets: ${del_set:-"-"}, rc: ${feed_rc:-"-"}, log: ${feed_log:-"-"}"
1070 }
1071
1072 # generate status information
1073 #
1074 f_genstatus() {
1075         local object end_time duration table_sets cnt_elements="0" custom_feed="0" split="0" status="${1}"
1076
1077         [ -z "${ban_dev}" ] && f_conf
1078         if [ "${status}" = "active" ]; then
1079                 if [ -n "${ban_starttime}" ] && [ "${ban_action}" != "boot" ]; then
1080                         end_time="$(date "+%s")"
1081                         duration="$(((end_time - ban_starttime) / 60))m $(((end_time - ban_starttime) % 60))s"
1082                 fi
1083                 table_sets="$("${ban_nftcmd}" -tj list ruleset 2>/dev/null | "${ban_jsoncmd}" -qe '@.nftables[@.set.table="banIP"].set.name')"
1084                 if [ "${ban_reportelements}" = "1" ]; then
1085                         for object in ${table_sets}; do
1086                                 cnt_elements="$((cnt_elements + $("${ban_nftcmd}" -j list set inet banIP "${object}" 2>/dev/null | "${ban_jsoncmd}" -qe '@.nftables[*].set.elem[*]' | wc -l 2>/dev/null)))"
1087                         done
1088                 fi
1089                 runtime="action: ${ban_action:-"-"}, fetch: ${ban_fetchcmd##*/}, duration: ${duration:-"-"}, date: $(date "+%Y-%m-%d %H:%M:%S")"
1090         fi
1091         [ -s "${ban_customfeedfile}" ] && custom_feed="1"
1092         [ "${ban_splitsize:-"0"}" -gt "0" ] && split="1"
1093
1094         : >"${ban_rtfile}"
1095         json_init
1096         json_load_file "${ban_rtfile}" >/dev/null 2>&1
1097         json_add_string "status" "${status}"
1098         json_add_string "version" "${ban_ver}"
1099         json_add_string "element_count" "${cnt_elements}"
1100         json_add_array "active_feeds"
1101         for object in ${table_sets:-"-"}; do
1102                 json_add_string "${object}" "${object}"
1103         done
1104         json_close_array
1105         json_add_array "wan_devices"
1106         for object in ${ban_dev:-"-"}; do
1107                 json_add_string "${object}" "${object}"
1108         done
1109         json_close_array
1110         json_add_array "wan_interfaces"
1111         for object in ${ban_ifv4:-"-"} ${ban_ifv6:-"-"}; do
1112                 json_add_string "${object}" "${object}"
1113         done
1114         json_close_array
1115         json_add_array "vlan_allow"
1116         for object in ${ban_vlanallow:-"-"}; do
1117                 json_add_string "${object}" "${object}"
1118         done
1119         json_close_array
1120         json_add_array "vlan_block"
1121         for object in ${ban_vlanblock:-"-"}; do
1122                 json_add_string "${object}" "${object}"
1123         done
1124         json_close_array
1125         json_add_array "active_uplink"
1126         for object in ${ban_uplink:-"-"}; do
1127                 json_add_string "${object}" "${object}"
1128         done
1129         json_close_array
1130         json_add_string "nft_info" "priority: ${ban_nftpriority}, policy: ${ban_nftpolicy}, loglevel: ${ban_nftloglevel}, expiry: ${ban_nftexpiry:-"-"}"
1131         json_add_string "run_info" "base: ${ban_basedir}, backup: ${ban_backupdir}, report: ${ban_reportdir}"
1132         json_add_string "run_flags" "auto: $(f_char ${ban_autodetect}), proto (4/6): $(f_char ${ban_protov4})/$(f_char ${ban_protov6}), log (wan-inp/wan-fwd/lan-fwd): $(f_char ${ban_loginput})/$(f_char ${ban_logforwardwan})/$(f_char ${ban_logforwardlan}), dedup: $(f_char ${ban_deduplicate}), split: $(f_char ${split}), custom feed: $(f_char ${custom_feed}), allowed only: $(f_char ${ban_allowlistonly})"
1133         json_add_string "last_run" "${runtime:-"-"}"
1134         json_add_string "system_info" "cores: ${ban_cores}, memory: ${ban_memory}, device: ${ban_sysver}"
1135         json_dump >"${ban_rtfile}"
1136 }
1137
1138 # get status information
1139 #
1140 f_getstatus() {
1141         local key keylist value values
1142
1143         [ -z "${ban_dev}" ] && f_conf
1144         json_load_file "${ban_rtfile}" >/dev/null 2>&1
1145         if json_get_keys keylist; then
1146                 printf "%s\n" "::: banIP runtime information"
1147                 for key in ${keylist}; do
1148                         if [ "${key}" = "active_feeds" ] || [ "${key}" = "active_uplink" ]; then
1149                                 json_get_values values "${key}" >/dev/null 2>&1
1150                                 value="${values// /, }"
1151                         elif [ "${key}" = "wan_devices" ]; then
1152                                 json_get_values values "${key}" >/dev/null 2>&1
1153                                 value="wan: ${values// /, } / "
1154                                 json_get_values values "wan_interfaces" >/dev/null 2>&1
1155                                 value="${value}wan-if: ${values// /, } / "
1156                                 json_get_values values "vlan_allow" >/dev/null 2>&1
1157                                 value="${value}vlan-allow: ${values// /, } / "
1158                                 json_get_values values "vlan_block" >/dev/null 2>&1
1159                                 value="${value}vlan-block: ${values// /, }"
1160                                 key="active_devices"
1161                         else
1162                                 json_get_var value "${key}" >/dev/null 2>&1
1163                                 if [ "${key}" = "status" ]; then
1164                                         value="${value} ($(f_actual))"
1165                                 fi
1166                         fi
1167                         if [ "${key}" != "wan_interfaces" ] && [ "${key}" != "vlan_allow" ] && [ "${key}" != "vlan_block" ]; then
1168                                 printf "  + %-17s : %s\n" "${key}" "${value:-"-"}"
1169                         fi
1170                 done
1171         else
1172                 printf "%s\n" "::: no banIP runtime information available"
1173         fi
1174 }
1175
1176 # domain lookup
1177 #
1178 f_lookup() {
1179         local cnt list domain lookup ip elementsv4 elementsv6 start_time end_time duration cnt_domain="0" cnt_ip="0" feed="${1}"
1180
1181         [ -z "${ban_dev}" ] && f_conf
1182         start_time="$(date "+%s")"
1183         if [ "${feed}" = "allowlist" ]; then
1184                 list="$("${ban_awkcmd}" '/^([[:alnum:]_-]{1,63}\.)+[[:alpha:]]+([[:space:]]|$)/{printf "%s ",tolower($1)}' "${ban_allowlist}" 2>/dev/null)"
1185         elif [ "${feed}" = "blocklist" ]; then
1186                 list="$("${ban_awkcmd}" '/^([[:alnum:]_-]{1,63}\.)+[[:alpha:]]+([[:space:]]|$)/{printf "%s ",tolower($1)}' "${ban_blocklist}" 2>/dev/null)"
1187         fi
1188
1189         for domain in ${list}; do
1190                 lookup="$("${ban_lookupcmd}" "${domain}" ${ban_resolver} 2>/dev/null | "${ban_awkcmd}" '/^Address[ 0-9]*: /{if(!seen[$NF]++)printf "%s ",$NF}' 2>/dev/null)"
1191                 for ip in ${lookup}; do
1192                         if [ "${ip%%.*}" = "0" ] || [ -z "${ip%%::*}" ]; then
1193                                 continue
1194                         else
1195                                 if { [ "${feed}" = "allowlist" ] && ! "${ban_grepcmd}" -q "^${ip}" "${ban_allowlist}"; } ||
1196                                         { [ "${feed}" = "blocklist" ] && ! "${ban_grepcmd}" -q "^${ip}" "${ban_blocklist}"; }; then
1197                                         if [ "${ip##*:}" = "${ip}" ]; then
1198                                                 elementsv4="${elementsv4} ${ip},"
1199                                         else
1200                                                 elementsv6="${elementsv6} ${ip},"
1201                                         fi
1202                                         if [ "${feed}" = "allowlist" ] && [ "${ban_autoallowlist}" = "1" ]; then
1203                                                 printf "%-42s%s\n" "${ip}" "# '${domain}' added on $(date "+%Y-%m-%d %H:%M:%S")" >>"${ban_allowlist}"
1204                                         elif [ "${feed}" = "blocklist" ] && [ "${ban_autoblocklist}" = "1" ]; then
1205                                                 printf "%-42s%s\n" "${ip}" "# '${domain}' added on $(date "+%Y-%m-%d %H:%M:%S")" >>"${ban_blocklist}"
1206                                         fi
1207                                         cnt_ip="$((cnt_ip + 1))"
1208                                 fi
1209                         fi
1210                 done
1211                 cnt_domain="$((cnt_domain + 1))"
1212         done
1213         if [ -n "${elementsv4}" ]; then
1214                 if ! "${ban_nftcmd}" add element inet banIP "${feed}v4" "{ ${elementsv4} }" >/dev/null 2>&1; then
1215                         f_log "info" "can't add lookup file to Set '${feed}v4'"
1216                 fi
1217         fi
1218         if [ -n "${elementsv6}" ]; then
1219                 if ! "${ban_nftcmd}" add element inet banIP "${feed}v6" "{ ${elementsv6} }" >/dev/null 2>&1; then
1220                         f_log "info" "can't add lookup file to Set '${feed}v6'"
1221                 fi
1222         fi
1223         end_time="$(date "+%s")"
1224         duration="$(((end_time - start_time) / 60))m $(((end_time - start_time) % 60))s"
1225
1226         f_log "debug" "f_lookup    ::: feed: ${feed}, domains: ${cnt_domain}, IPs: ${cnt_ip}, duration: ${duration}"
1227 }
1228
1229 # table statistics
1230 #
1231 f_report() {
1232         local report_jsn report_txt tmp_val ruleset_raw item table_sets set_cnt set_input set_forwardwan set_forwardlan set_cntinput set_cntforwardwan set_cntforwardlan output="${1}"
1233         local detail set_details jsnval timestamp autoadd_allow autoadd_block sum_sets sum_setinput sum_setforwardwan sum_setforwardlan sum_setelements sum_cntinput sum_cntforwardwan sum_cntforwardlan
1234
1235         [ -z "${ban_dev}" ] && f_conf
1236         f_mkdir "${ban_reportdir}"
1237         report_jsn="${ban_reportdir}/ban_report.jsn"
1238         report_txt="${ban_reportdir}/ban_report.txt"
1239
1240         # json output preparation
1241         #
1242         ruleset_raw="$("${ban_nftcmd}" -tj list ruleset 2>/dev/null)"
1243         table_sets="$(printf "%s" "${ruleset_raw}" | "${ban_jsoncmd}" -qe '@.nftables[@.set.table="banIP"].set.name')"
1244         sum_sets="0"
1245         sum_setinput="0"
1246         sum_setforwardwan="0"
1247         sum_setforwardlan="0"
1248         sum_setelements="0"
1249         sum_cntinput="0"
1250         sum_cntforwardwan="0"
1251         sum_cntforwardlan="0"
1252         timestamp="$(date "+%Y-%m-%d %H:%M:%S")"
1253         : >"${report_jsn}"
1254         {
1255                 printf "%s\n" "{"
1256                 printf "\t%s\n" '"sets":{'
1257                 for item in ${table_sets}; do
1258                         set_cntinput="$(printf "%s" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-input\"][@.expr[0].match.right=\"@${item}\"].expr[*].counter.packets")"
1259                         set_cntforwardwan="$(printf "%s" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"wan-forward\"][@.expr[0].match.right=\"@${item}\"].expr[*].counter.packets")"
1260                         set_cntforwardlan="$(printf "%s" "${ruleset_raw}" | "${ban_jsoncmd}" -ql1 -e "@.nftables[@.rule.table=\"banIP\"&&@.rule.chain=\"lan-forward\"][@.expr[0].match.right=\"@${item}\"].expr[*].counter.packets")"
1261                         if [ "${ban_reportelements}" = "1" ]; then
1262                                 set_cnt="$("${ban_nftcmd}" -j list set inet banIP "${item}" 2>/dev/null | "${ban_jsoncmd}" -qe '@.nftables[*].set.elem[*]' | wc -l 2>/dev/null)"
1263                                 sum_setelements="$((sum_setelements + set_cnt))"
1264                         else
1265                                 set_cnt=""
1266                                 sum_setelements="n/a"
1267                         fi
1268                         if [ -n "${set_cntinput}" ]; then
1269                                 set_input="OK"
1270                                 sum_setinput="$((sum_setinput + 1))"
1271                                 sum_cntinput="$((sum_cntinput + set_cntinput))"
1272                         else
1273                                 set_input="-"
1274                                 set_cntinput=""
1275                         fi
1276                         if [ -n "${set_cntforwardwan}" ]; then
1277                                 set_forwardwan="OK"
1278                                 sum_setforwardwan="$((sum_setforwardwan + 1))"
1279                                 sum_cntforwardwan="$((sum_cntforwardwan + set_cntforwardwan))"
1280                         else
1281                                 set_forwardwan="-"
1282                                 set_cntforwardwan=""
1283                         fi
1284                         if [ -n "${set_cntforwardlan}" ]; then
1285                                 set_forwardlan="OK"
1286                                 sum_setforwardlan="$((sum_setforwardlan + 1))"
1287                                 sum_cntforwardlan="$((sum_cntforwardlan + set_cntforwardlan))"
1288                         else
1289                                 set_forwardlan="-"
1290                                 set_cntforwardlan=""
1291                         fi
1292                         [ "${sum_sets}" -gt "0" ] && printf "%s\n" ","
1293                         printf "\t\t%s\n" "\"${item}\":{"
1294                         printf "\t\t\t%s\n" "\"cnt_elements\": \"${set_cnt}\","
1295                         printf "\t\t\t%s\n" "\"cnt_input\": \"${set_cntinput}\","
1296                         printf "\t\t\t%s\n" "\"input\": \"${set_input}\","
1297                         printf "\t\t\t%s\n" "\"cnt_forwardwan\": \"${set_cntforwardwan}\","
1298                         printf "\t\t\t%s\n" "\"wan_forward\": \"${set_forwardwan}\","
1299                         printf "\t\t\t%s\n" "\"cnt_forwardlan\": \"${set_cntforwardlan}\","
1300                         printf "\t\t\t%s\n" "\"lan_forward\": \"${set_forwardlan}\""
1301                         printf "\t\t%s" "}"
1302                         sum_sets="$((sum_sets + 1))"
1303                 done
1304                 printf "\n\t%s\n" "},"
1305                 printf "\t%s\n" "\"timestamp\": \"${timestamp}\","
1306                 printf "\t%s\n" "\"autoadd_allow\": \"$("${ban_grepcmd}" -c "added on ${timestamp% *}" "${ban_allowlist}")\","
1307                 printf "\t%s\n" "\"autoadd_block\": \"$("${ban_grepcmd}" -c "added on ${timestamp% *}" "${ban_blocklist}")\","
1308                 printf "\t%s\n" "\"sum_sets\": \"${sum_sets}\","
1309                 printf "\t%s\n" "\"sum_setinput\": \"${sum_setinput}\","
1310                 printf "\t%s\n" "\"sum_setforwardwan\": \"${sum_setforwardwan}\","
1311                 printf "\t%s\n" "\"sum_setforwardlan\": \"${sum_setforwardlan}\","
1312                 printf "\t%s\n" "\"sum_setelements\": \"${sum_setelements}\","
1313                 printf "\t%s\n" "\"sum_cntinput\": \"${sum_cntinput}\","
1314                 printf "\t%s\n" "\"sum_cntforwardwan\": \"${sum_cntforwardwan}\","
1315                 printf "\t%s\n" "\"sum_cntforwardlan\": \"${sum_cntforwardlan}\""
1316                 printf "%s\n" "}"
1317         } >>"${report_jsn}"
1318
1319         # text output preparation
1320         #
1321         if [ "${output}" != "json" ] && [ -s "${report_jsn}" ]; then
1322                 : >"${report_txt}"
1323                 json_init
1324                 if json_load_file "${report_jsn}" >/dev/null 2>&1; then
1325                         json_get_var timestamp "timestamp" >/dev/null 2>&1
1326                         json_get_var autoadd_allow "autoadd_allow" >/dev/null 2>&1
1327                         json_get_var autoadd_block "autoadd_block" >/dev/null 2>&1
1328                         json_get_var sum_sets "sum_sets" >/dev/null 2>&1
1329                         json_get_var sum_setinput "sum_setinput" >/dev/null 2>&1
1330                         json_get_var sum_setforwardwan "sum_setforwardwan" >/dev/null 2>&1
1331                         json_get_var sum_setforwardlan "sum_setforwardlan" >/dev/null 2>&1
1332                         json_get_var sum_setelements "sum_setelements" >/dev/null 2>&1
1333                         json_get_var sum_cntinput "sum_cntinput" >/dev/null 2>&1
1334                         json_get_var sum_cntforwardwan "sum_cntforwardwan" >/dev/null 2>&1
1335                         json_get_var sum_cntforwardlan "sum_cntforwardlan" >/dev/null 2>&1
1336                         {
1337                                 printf "%s\n%s\n%s\n" ":::" "::: banIP Set Statistics" ":::"
1338                                 printf "%s\n" "    Timestamp: ${timestamp}"
1339                                 printf "%s\n" "    ------------------------------"
1340                                 printf "%s\n" "    auto-added to allowlist today: ${autoadd_allow}"
1341                                 printf "%s\n\n" "    auto-added to blocklist today: ${autoadd_block}"
1342                                 json_select "sets" >/dev/null 2>&1
1343                                 json_get_keys table_sets >/dev/null 2>&1
1344                                 if [ -n "${table_sets}" ]; then
1345                                         printf "%-25s%-15s%-24s%-24s%s\n" "    Set" "| Elements" "| WAN-Input (packets)" "| WAN-Forward (packets)" "| LAN-Forward (packets)"
1346                                         printf "%s\n" "    ---------------------+--------------+-----------------------+-----------------------+------------------------"
1347                                         for item in ${table_sets}; do
1348                                                 printf "    %-21s" "${item}"
1349                                                 json_select "${item}"
1350                                                 json_get_keys set_details
1351                                                 for detail in ${set_details}; do
1352                                                         json_get_var jsnval "${detail}" >/dev/null 2>&1
1353                                                         case "${detail}" in
1354                                                                 "cnt_elements")
1355                                                                         printf "%-15s" "| ${jsnval}"
1356                                                                         ;;
1357                                                                 "cnt_input" | "cnt_forwardwan" | "cnt_forwardlan")
1358                                                                         [ -n "${jsnval}" ] && tmp_val=": ${jsnval}"
1359                                                                         ;;
1360                                                                 *)
1361                                                                         printf "%-24s" "| ${jsnval}${tmp_val}"
1362                                                                         tmp_val=""
1363                                                                         ;;
1364                                                         esac
1365                                                 done
1366                                                 printf "\n"
1367                                                 json_select ".."
1368                                         done
1369                                         printf "%s\n" "    ---------------------+--------------+-----------------------+-----------------------+------------------------"
1370                                         printf "%-25s%-15s%-24s%-24s%s\n" "    ${sum_sets}" "| ${sum_setelements}" "| ${sum_setinput} (${sum_cntinput})" "| ${sum_setforwardwan} (${sum_cntforwardwan})" "| ${sum_setforwardlan} (${sum_cntforwardlan})"
1371                                 fi
1372                         } >>"${report_txt}"
1373                 fi
1374         fi
1375
1376         # output channel (text|json|mail)
1377         #
1378         case "${output}" in
1379                 "text")
1380                         [ -s "${report_txt}" ] && "${ban_catcmd}" "${report_txt}"
1381                         ;;
1382                 "json")
1383                         [ -s "${report_jsn}" ] && "${ban_catcmd}" "${report_jsn}"
1384                         ;;
1385                 "mail")
1386                         [ -n "${ban_mailreceiver}" ] && [ -x "${ban_mailcmd}" ] && f_mail
1387                         ;;
1388         esac
1389         rm -f "${report_txt}"
1390 }
1391
1392 # Set search
1393 #
1394 f_search() {
1395         local item table_sets ip proto hold cnt result_flag="/var/run/banIP.search" input="${1}"
1396
1397         if [ -n "${input}" ]; then
1398                 ip="$(printf "%s" "${input}" | "${ban_awkcmd}" 'BEGIN{RS="(([0-9]{1,3}\\.){3}(1?[0-9][0-9]?|2[0-4][0-9]|25[0-5])(\/(1?[0-9]|2?[0-9]|3?[0-2]))?[[:space:]]*$)"}{printf "%s",RT}')"
1399                 [ -n "${ip}" ] && proto="v4"
1400                 if [ -z "${proto}" ]; then
1401                         ip="$(printf "%s" "${input}" | "${ban_awkcmd}" 'BEGIN{RS="(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]].*|$)"}{printf "%s",RT}')"
1402                         [ -n "${ip}" ] && proto="v6"
1403                 fi
1404         fi
1405         if [ -n "${proto}" ]; then
1406                 table_sets="$("${ban_nftcmd}" -tj list ruleset 2>/dev/null | "${ban_jsoncmd}" -qe "@.nftables[@.set.table=\"banIP\"&&@.set.type=\"ip${proto}_addr\"].set.name")"
1407         else
1408                 printf "%s\n%s\n%s\n" ":::" "::: no valid search input" ":::"
1409                 return
1410         fi
1411         printf "%s\n%s\n%s\n" ":::" "::: banIP Search" ":::"
1412         printf "    %s\n" "Looking for IP '${ip}' on $(date "+%Y-%m-%d %H:%M:%S")"
1413         printf "    %s\n" "---"
1414         cnt="1"
1415         for item in ${table_sets}; do
1416                 [ -f "${result_flag}" ] && break
1417                 (
1418                         if "${ban_nftcmd}" get element inet banIP "${item}" "{ ${ip} }" >/dev/null 2>&1; then
1419                                 printf "    %s\n" "IP found in Set '${item}'"
1420                                 : >"${result_flag}"
1421                         fi
1422                 ) &
1423                 hold="$((cnt % ban_cores))"
1424                 [ "${hold}" = "0" ] && wait
1425                 cnt="$((cnt + 1))"
1426         done
1427         wait
1428         [ -f "${result_flag}" ] && rm -f "${result_flag}" || printf "    %s\n" "IP not found"
1429 }
1430
1431 # Set survey
1432 #
1433 f_survey() {
1434         local set_elements input="${1}"
1435
1436         if [ -z "${input}" ]; then
1437                 printf "%s\n%s\n%s\n" ":::" "::: no valid survey input" ":::"
1438                 return
1439         fi
1440         set_elements="$("${ban_nftcmd}" -j list set inet banIP "${input}" 2>/dev/null | "${ban_jsoncmd}" -qe '@.nftables[*].set.elem[*]')"
1441         printf "%s\n%s\n%s\n" ":::" "::: banIP Survey" ":::"
1442         printf "    %s\n" "List of elements in the Set '${input}' on $(date "+%Y-%m-%d %H:%M:%S")"
1443         printf "    %s\n" "---"
1444         [ -n "${set_elements}" ] && printf "%s\n" "${set_elements}" || printf "    %s\n" "empty Set"
1445 }
1446
1447 # send status mail
1448 #
1449 f_mail() {
1450         local msmtp_debug
1451
1452         # load mail template
1453         #
1454         if [ -r "${ban_mailtemplate}" ]; then
1455                 . "${ban_mailtemplate}"
1456         else
1457                 f_log "info" "no mail template"
1458         fi
1459         [ -z "${mail_text}" ] && f_log "info" "no mail content"
1460         [ "${ban_debug}" = "1" ] && msmtp_debug="--debug"
1461
1462         # send mail
1463         #
1464         ban_mailhead="From: ${ban_mailsender}\nTo: ${ban_mailreceiver}\nSubject: ${ban_mailtopic}\nReply-to: ${ban_mailsender}\nMime-Version: 1.0\nContent-Type: text/html;charset=utf-8\nContent-Disposition: inline\n\n"
1465         printf "%b" "${ban_mailhead}${mail_text}" | "${ban_mailcmd}" --timeout=10 ${msmtp_debug} -a "${ban_mailprofile}" "${ban_mailreceiver}" >/dev/null 2>&1
1466         f_log "info" "send status mail (${?})"
1467
1468         f_log "debug" "f_mail      ::: notification: ${ban_mailnotification}, template: ${ban_mailtemplate}, profile: ${ban_mailprofile}, receiver: ${ban_mailreceiver}, rc: ${?}"
1469 }
1470
1471 # log monitor
1472 #
1473 f_monitor() {
1474         local nft_expiry line proto ip log_raw log_count rdap_log rdap_rc rdap_elements rdap_info
1475
1476         if [ -x "${ban_logreadcmd}" ] && [ -n "${ban_logterm%%??}" ] && [ "${ban_loglimit}" != "0" ]; then
1477                 f_log "info" "start detached banIP log service"
1478                 [ -n "${ban_nftexpiry}" ] && nft_expiry="timeout $(printf "%s" "${ban_nftexpiry}" | "${ban_grepcmd}" -oE "([0-9]+[d|h|m|s])+$")"
1479                 "${ban_logreadcmd}" -fe "${ban_logterm%%??}" 2>/dev/null |
1480                         while read -r line; do
1481                                 : >"${ban_rdapfile}"
1482                                 proto=""
1483                                 ip="$(printf "%s" "${line}" | "${ban_awkcmd}" 'BEGIN{RS="(([0-9]{1,3}\\.){3}[0-9]{1,3})+"}{if(!seen[RT]++)printf "%s ",RT}')"
1484                                 ip="$(f_trim "${ip}")"
1485                                 ip="${ip##* }"
1486                                 [ -n "${ip}" ] && proto="v4"
1487                                 if [ -z "${proto}" ]; then
1488                                         ip="$(printf "%s" "${line}" | "${ban_awkcmd}" 'BEGIN{RS="([A-Fa-f0-9]{1,4}::?){3,7}[A-Fa-f0-9]{1,4}"}{if(!seen[RT]++)printf "%s ",RT}')"
1489                                         ip="$(f_trim "${ip}")"
1490                                         ip="${ip##* }"
1491                                         [ -n "${ip}" ] && proto="v6"
1492                                 fi
1493                                 if [ -n "${proto}" ] && ! "${ban_nftcmd}" get element inet banIP blocklist"${proto}" "{ ${ip} }" >/dev/null 2>&1 && ! "${ban_grepcmd}" -q "^${ip}" "${ban_allowlist}"; then
1494                                         f_log "info" "suspicious IP '${ip}'"
1495                                         log_raw="$("${ban_logreadcmd}" -l "${ban_loglimit}" 2>/dev/null)"
1496                                         log_count="$(printf "%s\n" "${log_raw}" | "${ban_grepcmd}" -c "suspicious IP '${ip}'")"
1497                                         if [ "${log_count}" -ge "${ban_logcount}" ]; then
1498                                                 if [ "${ban_autoblocksubnet}" = "1" ]; then
1499                                                         rdap_log="$("${ban_fetchcmd}" ${ban_rdapparm} "${ban_rdapfile}" "${ban_rdapurl}${ip}" 2>&1)"
1500                                                         rdap_rc="${?}"
1501                                                         if [ "${rdap_rc}" = "0" ] && [ -s "${ban_rdapfile}" ]; then
1502                                                                 rdap_elements="$(jsonfilter -i "${ban_rdapfile}" -qe '@.cidr0_cidrs.*' | awk 'BEGIN{FS="[\" ]"}{printf "%s/%s, ",$6,$11}')"
1503                                                                 rdap_info="$(jsonfilter -i "${ban_rdapfile}" -qe '@.country' -qe '@.notices[@.title="Source"].description[1]' | awk 'BEGIN{RS="";FS="\n"}{printf "%s, %s",$1,$2}')"
1504                                                                 if [ -n "${rdap_elements//\/*/}" ]; then
1505                                                                         if "${ban_nftcmd}" add element inet banIP "blocklist${proto}" "{ ${rdap_elements%%??} ${nft_expiry} }" >/dev/null 2>&1; then
1506                                                                                 f_log "info" "add IP range '${rdap_elements%%??}' (source: ${rdap_info:-"-"} ::: expiry: ${ban_nftexpiry:-"-"}) to blocklist${proto} set"
1507                                                                         fi
1508                                                                 fi
1509                                                         else
1510                                                                 f_log "info" "rdap request failed (rc: ${rdap_rc:-"-"}/log: ${rdap_log})"
1511                                                         fi
1512                                                 fi
1513                                                 if [ "${ban_autoblocksubnet}" = "0" ] || [ "${rdap_rc}" != "0" ] || [ ! -s "${ban_rdapfile}" ] || [ -z "${rdap_elements//\/*/}" ]; then
1514                                                         if "${ban_nftcmd}" add element inet banIP "blocklist${proto}" "{ ${ip} ${nft_expiry} }" >/dev/null 2>&1; then
1515                                                                 f_log "info" "add IP '${ip}' (expiry: ${ban_nftexpiry:-"-"}) to blocklist${proto} set"
1516                                                         fi
1517                                                 fi
1518                                                 if [ -z "${ban_nftexpiry}" ] && [ "${ban_autoblocklist}" = "1" ] && ! "${ban_grepcmd}" -q "^${ip}" "${ban_blocklist}"; then
1519                                                         printf "%-42s%s\n" "${ip}" "# added on $(date "+%Y-%m-%d %H:%M:%S")" >>"${ban_blocklist}"
1520                                                         f_log "info" "add IP '${ip}' to local blocklist"
1521                                                 fi
1522                                         fi
1523                                 fi
1524                         done
1525         else
1526                 f_log "info" "start detached no-op banIP service"
1527                 sleep infinity
1528         fi
1529 }
1530
1531 # initial sourcing
1532 #
1533 if [ -r "/lib/functions.sh" ] && [ -r "/lib/functions/network.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]; then
1534         . "/lib/functions.sh"
1535         . "/lib/functions/network.sh"
1536         . "/usr/share/libubox/jshn.sh"
1537 else
1538         rm -rf "${ban_lock}"
1539         exit 1
1540 fi
1541
1542 # check banIP availability
1543 #
1544 f_system
1545 if [ "${ban_action}" != "stop" ]; then
1546         [ ! -d "/etc/banip" ] && f_log "err" "no banIP config directory"
1547         [ ! -r "/etc/config/banip" ] && f_log "err" "no banIP config"
1548         [ "$(uci_get banip global ban_enabled)" = "0" ] && f_log "err" "banIP is disabled"
1549 fi