net/banip/files/banip.init

   1 #!/bin/sh /etc/rc.common
   2 # banIP init script - ban incoming and outgoing ip adresses/subnets via sets in nftables
   3 # Copyright (c) 2018-2023 Dirk Brenken (dev@brenken.org)
   4 # This is free software, licensed under the GNU General Public License v3.
   5
   6 # (s)hellcheck exceptions
   7 # shellcheck disable=all
   8
   9 START=30
  10 USE_PROCD=1
  11
  12 extra_command "report" "[text|json|mail] Print banIP related set statistics"
  13 extra_command "search" "[<IPv4 address>|<IPv6 address>] Check if an element exists in a banIP set"
  14 extra_command "survey" "[<set name>] List all elements of a given banIP set"
  15
  16 ban_init="/etc/init.d/banip"
  17 ban_service="/usr/bin/banip-service.sh"
  18 ban_funlib="/usr/lib/banip-functions.sh"
  19 ban_pidfile="/var/run/banip.pid"
  20 ban_lock="/var/run/banip.lock"
  21
  22 [ "${action}" = "stop" ] && ! /etc/init.d/banip running && exit 0
  23 [ ! -r "${ban_funlib}" ] && { [ "${action}" = "start" ] || [ "${action}" = "restart" ] || [ "${action}" = "reload" ] || [ "${action}" = "stop" ] || [ "${action}" = "report" ] || [ "${action}" = "search" ] || [ "${action}" = "lookup" ] || [ "${action}" = "status" ]; } && exit 1
  24 [ -d "${ban_lock}" ] && { [ "${action}" = "start" ] || [ "${action}" = "restart" ] || [ "${action}" = "reload" ]; } && exit 1
  25 [ ! -d "${ban_lock}" ] && { [ "${action}" = "start" ] || [ "${action}" = "restart" ] || [ "${action}" = "reload" ]; } && mkdir -p "${ban_lock}"
  26
  27 boot() {
  28         : >"${ban_pidfile}"
  29         rc_procd start_service "boot"
  30 }
  31
  32 start_service() {
  33         if "${ban_init}" enabled; then
  34                 [ "${action}" = "boot" ] && [ -n "$(uci_get banip global ban_trigger)" ] && return 0
  35                 [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  36                 f_rmpid
  37                 procd_open_instance "banip-service"
  38                 procd_set_param command "${ban_service}" "${@:-"${action}"}"
  39                 procd_set_param pidfile "${ban_pidfile}"
  40                 procd_set_param nice "$(uci_get banip global ban_nicelimit "0")"
  41                 procd_set_param limits nofile="$(uci_get banip global ban_filelimit "1024")"
  42                 procd_set_param stdout 1
  43                 procd_set_param stderr 1
  44                 procd_close_instance
  45         else
  46                 [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  47                 f_log "err" "banIP service autostart is currently disabled, please enable the service autostart with '/etc/init.d/banip enable'"
  48                 rm -rf "${ban_lock}"
  49         fi
  50 }
  51
  52 reload_service() {
  53         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  54         f_rmpid
  55         rc_procd start_service "reload"
  56 }
  57
  58 stop_service() {
  59         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  60         "${ban_nftcmd}" delete table inet banIP >/dev/null 2>&1
  61         f_genstatus "stopped"
  62         f_rmpid
  63 }
  64
  65 restart() {
  66         stop_service
  67         rc_procd start_service "restart"
  68 }
  69
  70 status() {
  71         status_service
  72 }
  73
  74 status_service() {
  75         local actual="${1}"
  76
  77         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  78         [ -n "${actual}" ] && f_actual || f_getstatus
  79 }
  80
  81 report() {
  82         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  83         f_report "${1:-"text"}"
  84 }
  85
  86 search() {
  87         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  88         f_search "${1}"
  89 }
  90
  91 survey() {
  92         [ -z "$(command -v "f_system")" ] && . "${ban_funlib}"
  93         f_survey "${1}"
  94 }
  95
  96 service_triggers() {
  97         local iface trigger delay
  98
  99         trigger="$(uci_get banip global ban_trigger)"
 100         delay="$(uci_get banip global ban_triggerdelay "5")"
 101         PROCD_RELOAD_DELAY=$((delay * 1000))
 102
 103         for iface in ${trigger}; do
 104                 procd_add_interface_trigger "interface.*.up" "${iface}" "${ban_init}" "start"
 105         done
 106         procd_add_reload_trigger "banip"
 107 }