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#!/bin/sh
# banIP - ban incoming and outgoing ip adresses/subnets via ipset
# written by Dirk Brenken (dev@brenken.org)
#
# This is free software, licensed under the GNU General Public License v3.
#
# (s)hellcheck exceptions
# shellcheck disable=1091,2030,2031,2034,2039,2086,2129,2140,2143,2154,2181,2183,2188
# set initial defaults
#
export LC_ALL=C
export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
set -o pipefail
ban_ver="0.7.9"
ban_enabled="0"
ban_mail_enabled="0"
ban_proto4_enabled="0"
ban_proto6_enabled="0"
ban_logsrc_enabled="0"
ban_logdst_enabled="0"
ban_monitor_enabled="0"
ban_autodetect="1"
ban_autoblacklist="1"
ban_autowhitelist="1"
ban_whitelistonly="0"
ban_logterms=""
ban_loglimit="100"
ban_ssh_logcount="3"
ban_luci_logcount="3"
ban_nginx_logcount="5"
ban_mailactions=""
ban_search=""
ban_devs=""
ban_ifaces=""
ban_debug="0"
ban_maxqueue="4"
ban_fetchutil=""
ban_ip_cmd="$(command -v ip)"
ban_ipt4_cmd="$(command -v iptables)"
ban_ipt4_savecmd="$(command -v iptables-save)"
ban_ipt4_restorecmd="$(command -v iptables-restore)"
ban_ipt6_cmd="$(command -v ip6tables)"
ban_ipt6_savecmd="$(command -v ip6tables-save)"
ban_ipt6_restorecmd="$(command -v ip6tables-restore)"
ban_ipset_cmd="$(command -v ipset)"
ban_logger_cmd="$(command -v logger)"
ban_logread_cmd="$(command -v logread)"
ban_allsources=""
ban_sources=""
ban_asns=""
ban_countries=""
ban_settype_src=""
ban_settype_dst=""
ban_settype_all=""
ban_lan_inputchains_4=""
ban_lan_inputchains_6=""
ban_lan_forwardchains_4=""
ban_lan_forwardchains_6=""
ban_wan_inputchains_4=""
ban_wan_inputchains_6=""
ban_wan_forwardchains_4=""
ban_wan_forwardchains_6=""
ban_action="${1:-"start"}"
ban_pidfile="/var/run/banip.pid"
ban_bgpidfile="/var/run/banip_bg.pid"
ban_tmpbase="/tmp"
ban_rtfile="${ban_tmpbase}/ban_runtime.json"
ban_srcfile="${ban_tmpbase}/ban_sources.json"
ban_reportdir="${ban_tmpbase}/banIP-Report"
ban_backupdir="${ban_tmpbase}/banIP-Backup"
ban_srcarc="/etc/banip/banip.sources.gz"
ban_dnsservice="/etc/banip/banip.dns"
ban_mailservice="/etc/banip/banip.mail"
ban_logservice="/etc/banip/banip.service"
ban_maclist="/etc/banip/banip.maclist"
ban_blacklist="/etc/banip/banip.blacklist"
ban_whitelist="/etc/banip/banip.whitelist"
ban_setcnt="0"
ban_cnt="0"
# load environment
#
f_load()
{
# get system information
#
ban_sysver="$(ubus -S call system board 2>/dev/null | jsonfilter -e '@.model' -e '@.release.description' | \
awk 'BEGIN{ORS=", "}{print $0}' | awk '{print substr($0,1,length($0)-2)}')"
# load config
#
f_conf
# check status
#
if [ "${ban_enabled}" = "0" ]
then
f_bgsrv "stop"
f_ipset "destroy"
f_jsnup "disabled"
f_rmbckp
f_rmtmp
f_log "info" "banIP is currently disabled, please set the config option 'ban_enabled' to '1' to use this service"
exit 0
fi
f_dir "${ban_backupdir}"
f_dir "${ban_reportdir}"
}
# check/create directories
#
f_dir()
{
local dir="${1}"
if [ ! -d "${dir}" ]
then
mkdir -p "${dir}"
if [ "${?}" = "0" ]
then
f_log "debug" "directory '${dir}' created"
else
f_log "err" "directory '${dir}' could not be created"
fi
else
f_log "debug" "directory '${dir}' is used"
fi
}
# load banIP config
#
f_conf()
{
if [ ! -r "/etc/config/banip" ] || [ -z "$(uci -q show banip.global.ban_autodetect)" ]
then
f_log "err" "no valid banIP config found, please re-install the package via opkg with the '--force-reinstall --force-maintainer' options"
fi
config_cb()
{
option_cb()
{
local option="${1}"
local value="${2}"
eval "${option}=\"${value}\""
}
list_cb()
{
local option="${1}"
local value="${2}"
if [ "${option}" = "ban_ifaces" ]
then
eval "${option}=\"$(printf "%s" "${ban_ifaces}")${value} \""
elif [ "${option}" = "ban_sources" ]
then
eval "${option}=\"$(printf "%s" "${ban_sources}")${value} \""
elif [ "${option}" = "ban_localsources" ]
then
eval "${option}=\"$(printf "%s" "${ban_localsources}")${value} \""
elif [ "${option}" = "ban_extrasources" ]
then
eval "${option}=\"$(printf "%s" "${ban_extrasources}")${value} \""
elif [ "${option}" = "ban_settype_src" ]
then
eval "${option}=\"$(printf "%s" "${ban_settype_src}")${value} \""
elif [ "${option}" = "ban_settype_dst" ]
then
eval "${option}=\"$(printf "%s" "${ban_settype_dst}")${value} \""
elif [ "${option}" = "ban_settype_all" ]
then
eval "${option}=\"$(printf "%s" "${ban_settype_all}")${value} \""
elif [ "${option}" = "ban_mailactions" ]
then
eval "${option}=\"$(printf "%s" "${ban_mailactions}")${value} \""
elif [ "${option}" = "ban_logterms" ]
then
eval "${option}=\"$(printf "%s" "${ban_logterms}")${value} \""
elif [ "${option}" = "ban_countries" ]
then
eval "${option}=\"$(printf "%s" "${ban_countries}")${value} \""
elif [ "${option}" = "ban_asns" ]
then
eval "${option}=\"$(printf "%s" "${ban_asns}")${value} \""
elif [ "${option}" = "ban_lan_inputchains_4" ]
then
eval "${option}=\"$(printf "%s" "${ban_lan_inputchains_4}")${value} \""
elif [ "${option}" = "ban_lan_inputchains_6" ]
then
eval "${option}=\"$(printf "%s" "${ban_lan_inputchains_6}")${value} \""
elif [ "${option}" = "ban_lan_forwardchains_4" ]
then
eval "${option}=\"$(printf "%s" "${ban_lan_forwardchains_4}")${value} \""
elif [ "${option}" = "ban_lan_forwardchains_6" ]
then
eval "${option}=\"$(printf "%s" "${ban_lan_forwardchains_6}")${value} \""
elif [ "${option}" = "ban_wan_inputchains_4" ]
then
eval "${option}=\"$(printf "%s" "${ban_wan_inputchains_4}")${value} \""
elif [ "${option}" = "ban_wan_inputchains_6" ]
then
eval "${option}=\"$(printf "%s" "${ban_wan_inputchains_6}")${value} \""
elif [ "${option}" = "ban_wan_forwardchains_4" ]
then
eval "${option}=\"$(printf "%s" "${ban_wan_forwardchains_4}")${value} \""
elif [ "${option}" = "ban_wan_forwardchains_6" ]
then
eval "${option}=\"$(printf "%s" "${ban_wan_forwardchains_6}")${value} \""
fi
}
}
config_load banip
ban_chain="${ban_chain:-"banIP"}"
ban_global_settype="${ban_global_settype:-"src+dst"}"
ban_target_src="${ban_target_src:-"DROP"}"
ban_target_dst="${ban_target_dst:-"REJECT"}"
ban_lan_inputchains_4="${ban_lan_inputchains_4:-"input_lan_rule"}"
ban_lan_inputchains_6="${ban_lan_inputchains_6:-"input_lan_rule"}"
ban_lan_forwardchains_4="${ban_lan_forwardchains_4:-"forwarding_lan_rule"}"
ban_lan_forwardchains_6="${ban_lan_forwardchains_6:-"forwarding_lan_rule"}"
ban_wan_inputchains_4="${ban_wan_inputchains_4:-"input_wan_rule"}"
ban_wan_inputchains_6="${ban_wan_inputchains_6:-"input_wan_rule"}"
ban_wan_forwardchains_4="${ban_wan_forwardchains_4:-"forwarding_wan_rule"}"
ban_wan_forwardchains_6="${ban_wan_forwardchains_6:-"forwarding_wan_rule"}"
ban_logchain_src="${ban_logchain_src:-"${ban_chain}_log_src"}"
ban_logchain_dst="${ban_logchain_dst:-"${ban_chain}_log_dst"}"
ban_logtarget_src="${ban_target_src}"
ban_logtarget_dst="${ban_target_dst}"
if [ "${ban_logsrc_enabled}" = "1" ]
then
ban_logprefix_src="${ban_logprefix_src:-"[banIP-${ban_ver%-*}, src/${ban_target_src}] "}"
ban_logopts_src="${ban_logopts_src:-"-m limit --limit 2/sec"}"
ban_target_src="${ban_logchain_src}"
fi
if [ "${ban_logdst_enabled}" = "1" ]
then
ban_logprefix_dst="${ban_logprefix_dst:-"[banIP-${ban_ver%-*}, dst/${ban_target_dst}] "}"
ban_logopts_dst="${ban_logopts_dst:-"-m limit --limit 2/sec"}"
ban_target_dst="${ban_logchain_dst}"
fi
ban_localsources="${ban_localsources:-"maclist whitelist blacklist"}"
ban_logterms="${ban_logterms:-"dropbear sshd luci nginx"}"
f_log "debug" "f_conf ::: ifaces: ${ban_ifaces:-"-"}, chain: ${ban_chain}, set_type: ${ban_global_settype}, log_chains (src/dst): ${ban_logchain_src}/${ban_logchain_dst}, targets (src/dst): ${ban_target_src}/${ban_target_dst}, whitelist_only: ${ban_whitelistonly}"
f_log "debug" "f_conf ::: lan_inputs (4/6): ${ban_lan_inputchains_4}/${ban_lan_inputchains_6}, lan_forwards (4/6): ${ban_lan_forwardchains_4}/${ban_lan_forwardchains_6}, wan_inputs (4/6): ${ban_wan_inputchains_4}/${ban_wan_inputchains_6}, wan_forwards (4/6): ${ban_wan_forwardchains_4}/${ban_wan_forwardchains_6}"
f_log "debug" "f_conf ::: local_sources: ${ban_localsources:-"-"}, extra_sources: ${ban_extrasources:-"-"}, log_terms: ${ban_logterms:-"-"}, log_prefixes (src/dst): ${ban_logprefix_src}/${ban_logprefix_dst}, log_options (src/dst): ${ban_logopts_src}/${ban_logopts_dst}"
}
# check environment
#
f_env()
{
local util utils packages iface insecure tmp cnt="0" cnt_max="10"
ban_starttime="$(date "+%s")"
f_jsnup "running"
f_log "info" "start banIP processing (${ban_action})"
# create temp directory & files
#
f_tmp
# get wan devices and wan subnets
#
if [ "${ban_autodetect}" = "1" ] && [ -z "${ban_ifaces}" ]
then
while [ "${cnt}" -le "${cnt_max}" ]
do
network_find_wan iface
if [ -n "${iface}" ] && [ -z "$(printf "%s\n" "${ban_ifaces}" | grep -F "${iface}")" ]
then
ban_proto4_enabled="1"
ban_ifaces="${ban_ifaces}${iface} "
uci_set banip global ban_proto4_enabled "1"
uci_add_list banip global ban_ifaces "${iface}"
fi
network_find_wan6 iface
if [ -n "${iface}" ] && [ -z "$(printf "%s\n" "${ban_ifaces}" | grep -F "${iface}")" ]
then
ban_proto6_enabled="1"
ban_ifaces="${ban_ifaces}${iface} "
uci_set banip global ban_proto6_enabled "1"
uci_add_list banip global ban_ifaces "${iface}"
fi
if [ -z "${ban_ifaces}" ]
then
if [ "${cnt}" -le "${cnt_max}" ]
then
network_flush_cache
cnt=$((cnt+1))
sleep 1
else
break
fi
else
if [ -n "$(uci -q changes "banip")" ]
then
uci_commit "banip"
fi
break
fi
done
fi
while [ "${cnt}" -le "${cnt_max}" ]
do
for iface in ${ban_ifaces}
do
network_get_device tmp "${iface}"
if [ -n "${tmp}" ] && [ -z "$(printf "%s\n" "${ban_devs}" | grep -F "${tmp}")" ]
then
ban_devs="${ban_devs} ${tmp}"
else
network_get_physdev tmp "${iface}"
if [ -n "${tmp}" ] && [ -z "$(printf "%s\n" "${ban_devs}" | grep -F "${tmp}")" ]
then
ban_devs="${ban_devs} ${tmp}"
fi
fi
network_get_subnet tmp "${iface}"
if [ -n "${tmp}" ] && [ -z "$(printf "%s\n" "${ban_subnets}" | grep -F "${tmp}")" ]
then
ban_subnets="${ban_subnets} ${tmp}"
fi
network_get_subnet6 tmp "${iface}"
if [ -n "${tmp}" ] && [ -z "$(printf "%s\n" "${ban_subnets}" | grep -F "${tmp}")" ]
then
ban_subnets="${ban_subnets} ${tmp}"
fi
done
if [ -z "${ban_devs}" ] || [ -z "${ban_subnets}" ]
then
if [ "${cnt}" -le "${cnt_max}" ]
then
network_flush_cache
cnt=$((cnt+1))
sleep 1
else
break
fi
else
break
fi
done
ban_ipdevs="$("${ban_ip_cmd}" link show 2>/dev/null | awk 'BEGIN{FS="[@: ]"}/^[0-9:]/{if($3!="lo"){ORS=" ";print $3}}')"
if [ -z "${ban_ifaces}" ] || [ -z "${ban_devs}" ] || [ -z "${ban_ipdevs}" ]
then
f_log "err" "logical wan interface(s)/device(s) '${ban_ifaces:-"-"}/${ban_devs:-"-"}' not found, please please check your configuration"
elif [ -z "${ban_ipdevs}" ]
then
f_log "err" "ip device(s) '${ban_ipdevs:-"-"}' not found, please please check your configuration"
fi
# check ipset/iptables utility
#
if [ ! -x "${ban_ipset_cmd}" ]
then
f_log "err" "ipset utility '${ban_ipset_cmd:-"-"}' not executable, please install package 'ipset'"
fi
if { [ "${ban_proto4_enabled}" = "1" ] && { [ ! -x "${ban_ipt4_cmd}" ] || [ ! -x "${ban_ipt4_savecmd}" ] || [ ! -x "${ban_ipt4_restorecmd}" ]; }; } || \
{ [ "${ban_proto6_enabled}" = "1" ] && { [ ! -x "${ban_ipt6_cmd}" ] || [ ! -x "${ban_ipt6_savecmd}" ] || [ ! -x "${ban_ipt6_restorecmd}" ]; }; }
then
f_log "err" "iptables utilities '${ban_ipt4_cmd:-"-"}, ${ban_ipt4_savecmd:-"-"}, ${ban_ipt4_restorecmd:-"-"}/${ban_ipt6_cmd:-"-"}', ${ban_ipt6_savecmd:-"-"}, ${ban_ipt6_restorecmd:-"-"} not executable, please install the relevant iptables packages"
fi
# check download utility
#
if [ -z "${ban_fetchutil}" ]
then
while [ -z "${packages}" ] && [ "${cnt}" -le "${cnt_max}" ]
do
packages="$(opkg list-installed 2>/dev/null)"
cnt=$((cnt+1))
sleep 1
done
if [ -z "${packages}" ]
then
f_log "err" "local opkg package repository is not available, please set 'ban_fetchutil' manually"
fi
utils="aria2c curl wget uclient-fetch"
for util in ${utils}
do
if { [ "${util}" = "uclient-fetch" ] && [ -n "$(printf "%s" "${packages}" | grep "^libustream-")" ]; } || \
{ [ "${util}" = "wget" ] && [ -n "$(printf "%s" "${packages}" | grep "^wget -")" ]; } || \
[ "${util}" = "curl" ] || [ "${util}" = "aria2c" ]
then
if [ -x "$(command -v "${util}")" ]
then
ban_fetchutil="${util}"
uci_set banip global ban_fetchutil "${util}"
uci_commit "banip"
break
fi
fi
done
elif [ ! -x "$(command -v "${ban_fetchutil}")" ]
then
unset ban_fetchutil
fi
case "${ban_fetchutil}" in
"aria2c")
if [ "${ban_fetchinsecure}" = "1" ]
then
insecure="--check-certificate=false"
fi
ban_fetchparm="${ban_fetchparm:-"${insecure} --timeout=20 --allow-overwrite=true --auto-file-renaming=false --log-level=warn --dir=/ -o"}"
;;
"curl")
if [ "${ban_fetchinsecure}" = "1" ]
then
insecure="--insecure"
fi
ban_fetchparm="${ban_fetchparm:-"${insecure} --connect-timeout 20 --silent --show-error --location -o"}"
;;
"uclient-fetch")
if [ "${ban_fetchinsecure}" = "1" ]
then
insecure="--no-check-certificate"
fi
ban_fetchparm="${ban_fetchparm:-"${insecure} --timeout=20 -O"}"
;;
"wget")
if [ "${ban_fetchinsecure}" = "1" ]
then
insecure="--no-check-certificate"
fi
ban_fetchparm="${ban_fetchparm:-"${insecure} --no-cache --no-cookies --max-redirect=0 --timeout=20 -O"}"
;;
esac
if [ -n "${ban_fetchutil}" ] && [ -n "${ban_fetchparm}" ]
then
ban_fetchutil="$(command -v "${ban_fetchutil}")"
else
f_log "err" "download utility with SSL support not found, please install 'uclient-fetch' with a 'libustream-*' variant or another download utility like 'wget', 'curl' or 'aria2'"
fi
# load JSON source file
#
if [ ! -r "${ban_srcfile}" ]
then
if [ -r "${ban_srcarc}" ]
then
zcat "${ban_srcarc}" > "${ban_srcfile}"
else
f_log "err" "banIP source archive not found"
fi
fi
if [ -r "${ban_srcfile}" ]
then
json_load_file "${ban_srcfile}"
json_get_keys ban_allsources
ban_allsources="${ban_allsources} maclist blacklist whitelist"
else
f_log "err" "banIP source file not found"
fi
f_log "debug" "f_env ::: auto_detect: ${ban_autodetect}, fetch_util: ${ban_fetchutil:-"-"}, fetch_parm: ${ban_fetchparm:-"-"}, src_file: ${ban_srcfile:-"-"}, log_terms: ${ban_logterms}, interfaces: ${ban_ifaces:-"-"}, devices: ${ban_devs:-"-"}, subnets: ${ban_subnets:-"-"}, ip_devices: ${ban_ipdevs:-"-"}, protocols (4/6): ${ban_proto4_enabled}/${ban_proto6_enabled}"
}
# create temporary files and directories
#
f_tmp()
{
f_dir "${ban_tmpbase}"
ban_tmpdir="$(mktemp -p "${ban_tmpbase}" -d)"
ban_tmpfile="$(mktemp -p "${ban_tmpdir}" -tu)"
if [ ! -f "${ban_pidfile}" ] || [ ! -s "${ban_pidfile}" ]
then
printf "%s" "${$}" > "${ban_pidfile}"
fi
f_log "debug" "f_tmp ::: tmp_base: ${ban_tmpbase:-"-"}, tmp_dir: ${ban_tmpdir:-"-"}, pid_file: ${ban_pidfile:-"-"}"
}
# remove temporary files and directories
#
f_rmtmp()
{
if [ -d "${ban_tmpdir}" ]
then
rm -rf "${ban_tmpdir}"
fi
rm -f "${ban_srcfile}"
> "${ban_pidfile}"
f_log "debug" "f_rmtmp ::: tmp_base: ${ban_tmpbase:-"-"}, tmp_dir: ${ban_tmpdir:-"-"}, pid_file: ${ban_pidfile:-"-"}"
}
# remove backup files
#
f_rmbckp()
{
if [ -d "${ban_backupdir}" ]
then
rm -f "${ban_backupdir}/banIP."*".gz"
fi
}
# status helper function
#
f_char()
{
local result input="${1}"
if [ "${input}" = "1" ]
then
result="✔"
else
result="✘"
fi
printf "%s" "${result}"
}
# apply iptables rules
#
f_iptrule()
{
local rc timeout="-w 5" action="${1}" chain="${2}" rule="${3}" pos="${4}"
if [ "${ban_proto4_enabled}" = "1" ] && { [ "${src_name}" = "maclist" ] || [ "${src_name##*_}" = "4" ]; }
then
rc="$("${ban_ipt4_cmd}" "${timeout}" -C ${chain} ${rule} 2>/dev/null; printf "%u" ${?})"
if { [ "${rc}" != "0" ] && { [ "${action}" = "-A" ] || [ "${action}" = "-I" ]; }; } || \
{ [ "${rc}" = "0" ] && [ "${action}" = "-D" ]; }
then
"${ban_ipt4_cmd}" "${timeout}" "${action}" ${chain} ${pos} ${rule} 2>/dev/null
rc="${?}"
else
rc=0
fi
fi
if [ "${ban_proto6_enabled}" = "1" ] && { [ "${src_name}" = "maclist" ] || [ "${src_name##*_}" = "6" ]; }
then
rc="$("${ban_ipt6_cmd}" "${timeout}" -C ${chain} ${rule} 2>/dev/null; printf "%u" ${?})"
if { [ "${rc}" != "0" ] && { [ "${action}" = "-A" ] || [ "${action}" = "-I" ]; }; } || \
{ [ "${rc}" = "0" ] && [ "${action}" = "-D" ]; }
then
"${ban_ipt6_cmd}" "${timeout}" "${action}" ${chain} ${pos} ${rule} 2>/dev/null
rc="${?}"
else
rc=0
fi
fi
if [ -n "${rc}" ] && [ "${rc}" != "0" ]
then
> "${tmp_err}"
f_log "info" "${src_name}: iptables action '${action:-"-"}' failed with '${chain}, ${pos:-"-"}, ${rule:-"-"}'"
fi
}
# iptables controller
#
f_iptables()
{
local ipt_cmd chain chainsets dev pos timeout="-w 5" destroy="${1}"
if [ "${ban_action}" != "refresh" ] && [ "${ban_action}" != "resume" ]
then
for dev in ${ban_ipdevs}
do
if [ "${src_name}" = "maclist" ]
then
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} src -j RETURN"
elif [ "${src_name%_*}" = "whitelist" ]
then
f_iptrule "-D" "${ban_chain}" "-i ${dev} -m set ! --match-set ${src_name} src -j ${ban_logtarget_src}"
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set ! --match-set ${src_name} dst -j ${ban_logtarget_dst}"
f_iptrule "-D" "${ban_chain}" "-i ${dev} -m set ! --match-set ${src_name} src -j ${ban_logchain_src}"
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set ! --match-set ${src_name} dst -j ${ban_logchain_dst}"
f_iptrule "-D" "${ban_chain}" "-i ${dev} -m set --match-set ${src_name} src -j RETURN"
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} dst -j RETURN"
else
f_iptrule "-D" "${ban_chain}" "-i ${dev} -m set --match-set ${src_name} src -j ${ban_logtarget_src}"
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} dst -j ${ban_logtarget_dst}"
f_iptrule "-D" "${ban_chain}" "-i ${dev} -m set --match-set ${src_name} src -j ${ban_logchain_src}"
f_iptrule "-D" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} dst -j ${ban_logchain_dst}"
fi
done
fi
if [ -z "${destroy}" ] && { [ "${cnt}" -gt "0" ] || [ "${src_name%_*}" = "blacklist" ] || [ "${src_name%_*}" = "whitelist" ]; }
then
if [ "${src_name##*_}" = "4" ]
then
ipt_cmd="${ban_ipt4_cmd}"
if [ ! -f "${ban_tmpfile}.${src_name##*_}.chains" ]
then
> "${ban_tmpfile}.${src_name##*_}.chains"
chainsets="${ban_lan_inputchains_4} ${ban_wan_inputchains_4} ${ban_lan_forwardchains_4} ${ban_wan_forwardchains_4}"
for chain in ${chainsets}
do
f_iptrule "-I" "${chain}" "-j ${ban_chain}"
done
f_iptrule "-A" "${ban_chain}" "-p udp --dport 67:68 --sport 67:68 -j RETURN"
f_iptrule "-A" "${ban_chain}" "-m conntrack ! --ctstate NEW -j RETURN"
fi
elif [ "${src_name##*_}" = "6" ]
then
ipt_cmd="${ban_ipt6_cmd}"
if [ ! -f "${ban_tmpfile}.${src_name##*_}.chains" ]
then
> "${ban_tmpfile}.${src_name##*_}.chains"
chainsets="${ban_lan_inputchains_6} ${ban_wan_inputchains_6} ${ban_lan_forwardchains_6} ${ban_wan_forwardchains_6}"
for chain in ${chainsets}
do
f_iptrule "-I" "${chain}" "-j ${ban_chain}"
done
f_iptrule "-A" "${ban_chain}" "-p ipv6-icmp -s fe80::/10 -d fe80::/10 -j RETURN"
f_iptrule "-A" "${ban_chain}" "-p udp -s fc00::/6 --sport 547 -d fc00::/6 --dport 546 -j RETURN"
f_iptrule "-A" "${ban_chain}" "-m conntrack ! --ctstate NEW -j RETURN"
fi
fi
if [ "${src_settype}" != "dst" ]
then
for dev in ${ban_devs}
do
if [ "${src_name}" = "maclist" ]
then
f_iptrule "-I" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} src -j RETURN" "1"
elif [ "${src_name%_*}" = "whitelist" ]
then
pos="$(( $("${ipt_cmd}" "${timeout}" -vnL "${ban_chain}" --line-numbers | grep -cF "RETURN")+1))"
if [ "${ban_whitelistonly}" = "1" ]
then
f_iptrule "-I" "${ban_chain}" "-i ${dev} -m set ! --match-set ${src_name} src -j ${ban_target_src}" "${pos}"
else
f_iptrule "-I" "${ban_chain}" "-i ${dev} -m set --match-set ${src_name} src -j RETURN" "${pos}"
fi
else
f_iptrule "${action:-"-A"}" "${ban_chain}" "-i ${dev} -m set --match-set ${src_name} src -j ${ban_target_src}"
fi
done
fi
if [ "${src_settype}" != "src" ]
then
for dev in ${ban_devs}
do
if [ "${src_name%_*}" = "whitelist" ]
then
pos="$(( $("${ipt_cmd}" "${timeout}" -vnL "${ban_chain}" --line-numbers | grep -cF "RETURN")+1))"
if [ "${ban_whitelistonly}" = "1" ]
then
f_iptrule "-I" "${ban_chain}" "-o ${dev} -m set ! --match-set ${src_name} dst -j ${ban_target_dst}" "${pos}"
else
f_iptrule "-I" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} dst -j RETURN" "${pos}"
fi
elif [ "${src_name}" != "maclist" ]
then
f_iptrule "${action:-"-A"}" "${ban_chain}" "-o ${dev} -m set --match-set ${src_name} dst -j ${ban_target_dst}"
fi
done
fi
else
"${ban_ipset_cmd}" -q destroy "${src_name}"
fi
}
# ipset controller
#
f_ipset()
{
local src src_list action rule ipt_cmd out_rc max="0" cnt="0" cnt_ip="0" cnt_cidr="0" cnt_mac="0" timeout="-w 5" mode="${1}" in_rc="4"
case "${mode}" in
"backup")
gzip -cf "${tmp_load}" 2>/dev/null > "${ban_backupdir}/banIP.${src_name}.gz"
out_rc="${?}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, out_rc: ${out_rc}"
return "${out_rc}"
;;
"restore")
if [ -f "${ban_backupdir}/banIP.${src_name}.gz" ]
then
zcat "${ban_backupdir}/banIP.${src_name}.gz" 2>/dev/null > "${tmp_load}"
out_rc="${?}"
else
out_rc="${in_rc}"
fi
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, out_rc: ${out_rc}"
return "${out_rc}"
;;
"remove")
if [ -f "${ban_backupdir}/banIP.${src_name}.gz" ]
then
rm -f "${ban_backupdir}/banIP.${src_name}.gz"
out_rc="${?}"
else
out_rc="${in_rc}"
fi
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, out_rc: ${out_rc}"
return "${out_rc}"
;;
"initial")
for proto in "4" "6"
do
if [ "${proto}" = "4" ] && [ "${ban_proto4_enabled}" = "1" ]
then
ipt_cmd="${ban_ipt4_cmd}"
chainsets="${ban_lan_inputchains_4} ${ban_lan_forwardchains_4} ${ban_wan_inputchains_4} ${ban_wan_forwardchains_4}"
elif [ "${proto}" = "6" ] && [ "${ban_proto6_enabled}" = "1" ]
then
ipt_cmd="${ban_ipt6_cmd}"
chainsets="${ban_lan_inputchains_6} ${ban_lan_forwardchains_6} ${ban_wan_inputchains_6} ${ban_wan_forwardchains_6}"
fi
if { [ "${proto}" = "4" ] && [ "${ban_proto4_enabled}" = "1" ]; } || \
{ [ "${proto}" = "6" ] && [ "${ban_proto6_enabled}" = "1" ]; }
then
if [ -z "$("${ipt_cmd}" "${timeout}" -nL "${ban_chain}" 2>/dev/null)" ]
then
"${ipt_cmd}" "${timeout}" -N "${ban_chain}" 2>/dev/null
out_rc="${?}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, chain: ${ban_chain:-"-"}, out_rc: ${out_rc}"
else
out_rc=0
for chain in ${chainsets}
do
f_iptrule "-D" "${chain}" "-j ${ban_chain}"
done
fi
if [ "${ban_logsrc_enabled}" = "1" ] && [ "${out_rc}" = "0" ] && [ -z "$("${ipt_cmd}" "${timeout}" -nL "${ban_logchain_src}" 2>/dev/null)" ]
then
"${ipt_cmd}" "${timeout}" -N "${ban_logchain_src}" 2>/dev/null
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
"${ipt_cmd}" "${timeout}" -A "${ban_logchain_src}" -j LOG ${ban_logopts_src} --log-prefix "${ban_logprefix_src}"
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
"${ipt_cmd}" "${timeout}" -A "${ban_logchain_src}" -j "${ban_logtarget_src}"
out_rc="${?}"
fi
fi
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, logchain_src: ${ban_logchain_src:-"-"}, out_rc: ${out_rc}"
fi
if [ "${ban_logdst_enabled}" = "1" ] && [ "${out_rc}" = "0" ] && [ -z "$("${ipt_cmd}" "${timeout}" -nL "${ban_logchain_dst}" 2>/dev/null)" ]
then
"${ipt_cmd}" "${timeout}" -N "${ban_logchain_dst}" 2>/dev/null
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
"${ipt_cmd}" "${timeout}" -A "${ban_logchain_dst}" -j LOG ${ban_logopts_dst} --log-prefix "${ban_logprefix_dst}"
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
"${ipt_cmd}" "${timeout}" -A "${ban_logchain_dst}" -j "${ban_logtarget_dst}"
out_rc="${?}"
fi
fi
f_log "debug" "f_ipset ::: name: initial, mode: ${mode:-"-"}, logchain_dst: ${ban_logchain_dst:-"-"}, out_rc: ${out_rc}"
fi
fi
done
out_rc="${out_rc:-"${in_rc}"}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, out_rc: ${out_rc}"
return "${out_rc}"
;;
"create")
if [ -z "$("${ban_ipset_cmd}" -q -n list "${src_name}")" ] && \
{ [ -s "${tmp_file}" ] || [ "${src_name%_*}" = "whitelist" ] || [ "${src_name%_*}" = "blacklist" ]; }
then
max="$(awk 'END{print NR}' "${tmp_file}" 2>/dev/null)"
max=$((max+262144))
if [ "${src_name}" = "maclist" ]
then
"${ban_ipset_cmd}" create "${src_name}" hash:mac hashsize 64 maxelem "${max}" counters timeout "${ban_maclist_timeout:-"0"}"
out_rc="${?}"
elif [ "${src_name%_*}" = "whitelist" ]
then
"${ban_ipset_cmd}" create "${src_name}" hash:net hashsize 64 maxelem "${max}" family "${src_ipver}" counters timeout "${ban_whitelist_timeout:-"0"}"
out_rc="${?}"
elif [ "${src_name%_*}" = "blacklist" ]
then
"${ban_ipset_cmd}" create "${src_name}" hash:net hashsize 64 maxelem "${max}" family "${src_ipver}" counters timeout "${ban_blacklist_timeout:-"0"}"
out_rc="${?}"
else
"${ban_ipset_cmd}" create "${src_name}" hash:net hashsize 64 maxelem "${max}" family "${src_ipver}" counters
out_rc="${?}"
fi
elif [ -n "$("${ban_ipset_cmd}" -q -n list "${src_name}")" ]
then
"${ban_ipset_cmd}" -q flush "${src_name}"
out_rc="${?}"
fi
if [ -s "${tmp_file}" ] && [ "${out_rc}" = "0" ]
then
"${ban_ipset_cmd}" -q -! restore < "${tmp_file}"
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
src_list="$("${ban_ipset_cmd}" -q list "${src_name}")"
cnt="$(printf "%s\n" "${src_list}" | awk '/^Number of entries:/{print $4}')"
cnt_mac="$(printf "%s\n" "${src_list}" | grep -cE "^(([0-9A-Z][0-9A-Z]:){5}[0-9A-Z]{2} )")"
cnt_cidr="$(printf "%s\n" "${src_list}" | grep -cE "(/[0-9]{1,3} )")"
cnt_ip=$((cnt-cnt_cidr-cnt_mac))
printf "%s\n" "${cnt}" > "${tmp_cnt}"
fi
fi
f_iptables
end_ts="$(date +%s)"
out_rc="${out_rc:-"${in_rc}"}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, ipver: ${src_ipver:-"-"}, settype: ${src_settype:-"-"}, count(sum/ip/cidr/mac): ${cnt}/${cnt_ip}/${cnt_cidr}/${cnt_mac}, time: $((end_ts-start_ts)), out_rc: ${out_rc}"
return "${out_rc}"
;;
"refresh")
if [ -n "$("${ban_ipset_cmd}" -q -n list "${src_name}")" ]
then
out_rc=0
src_list="$("${ban_ipset_cmd}" -q list "${src_name}")"
cnt="$(printf "%s\n" "${src_list}" | awk '/^Number of entries:/{print $4}')"
cnt_mac="$(printf "%s\n" "${src_list}" | grep -cE "^(([0-9A-Z][0-9A-Z]:){5}[0-9A-Z]{2} )")"
cnt_cidr="$(printf "%s\n" "${src_list}" | grep -cE "(/[0-9]{1,3} )")"
cnt_ip=$((cnt-cnt_cidr-cnt_mac))
printf "%s\n" "${cnt}" > "${tmp_cnt}"
f_iptables
fi
end_ts="$(date +%s)"
out_rc="${out_rc:-"${in_rc}"}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, count(sum/ip/cidr/mac): ${cnt}/${cnt_ip}/${cnt_cidr}/${cnt_mac}, time: $((end_ts-start_ts)), out_rc: ${out_rc}"
return "${out_rc}"
;;
"suspend")
for src in ${ban_sources} ${ban_localsources}
do
if [ "${src}" = "maclist" ] && [ -n "$("${ban_ipset_cmd}" -q -n list "${src}")" ]
then
tmp_file="${ban_backupdir}/${src}.file"
"${ban_ipset_cmd}" -q save "${src}" | tail -n +2 > "${tmp_file}"
"${ban_ipset_cmd}" -q flush "${src}"
else
for proto in "4" "6"
do
if [ -n "$("${ban_ipset_cmd}" -q -n list "${src}_${proto}")" ]
then
tmp_file="${ban_backupdir}/${src}_${proto}.file"
"${ban_ipset_cmd}" -q save "${src}_${proto}" | tail -n +2 > "${tmp_file}"
"${ban_ipset_cmd}" -q flush "${src}_${proto}"
fi
done
fi
done
f_log "debug" "f_ipset ::: name: ${src:-"-"}, mode: ${mode:-"-"}"
;;
"resume")
if [ -f "${ban_backupdir}/${src_name}.file" ]
then
"${ban_ipset_cmd}" -q -! restore < "${ban_backupdir}/${src_name}.file"
out_rc="${?}"
if [ "${out_rc}" = "0" ]
then
rm -f "${ban_backupdir}/${src_name}.file"
src_list="$("${ban_ipset_cmd}" -q list "${src_name}")"
cnt="$(printf "%s\n" "${src_list}" | awk '/^Number of entries:/{print $4}')"
cnt_mac="$(printf "%s\n" "${src_list}" | grep -cE "^(([0-9A-Z][0-9A-Z]:){5}[0-9A-Z]{2} )")"
cnt_cidr="$(printf "%s\n" "${src_list}" | grep -cE "(/[0-9]{1,3} )")"
cnt_ip=$((cnt-cnt_cidr-cnt_mac))
printf "%s\n" "${cnt}" > "${tmp_cnt}"
fi
f_iptables
fi
end_ts="$(date +%s)"
out_rc="${out_rc:-"${in_rc}"}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, ipver: ${src_ipver:-"-"}, settype: ${src_settype:-"-"}, count(sum/ip/cidr/mac): ${cnt}/${cnt_ip}/${cnt_cidr}/${cnt_mac}, time: $((end_ts-start_ts)), out_rc: ${out_rc}"
return "${out_rc}"
;;
"flush")
if [ -n "$("${ban_ipset_cmd}" -q -n list "${src_name}")" ]
then
f_iptables "destroy"
out_rc=0
fi
out_rc="${out_rc:-"${in_rc}"}"
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}, out_rc: ${out_rc}"
return "${out_rc}"
;;
"destroy")
for chain in ${ban_chain} ${ban_logchain_src} ${ban_logchain_dst}
do
if [ -n "$("${ban_ipt4_cmd}" "${timeout}" -nL "${chain}" 2>/dev/null)" ]
then
"${ban_ipt4_savecmd}" | grep -v -- "-j ${chain}" | "${ban_ipt4_restorecmd}"
"${ban_ipt4_cmd}" "${timeout}" -F "${chain}" 2>/dev/null
"${ban_ipt4_cmd}" "${timeout}" -X "${chain}" 2>/dev/null
fi
if [ -n "$("${ban_ipt6_cmd}" "${timeout}" -nL "${chain}" 2>/dev/null)" ]
then
"${ban_ipt6_savecmd}" | grep -v -- "-j ${chain}" | "${ban_ipt6_restorecmd}"
"${ban_ipt6_cmd}" "${timeout}" -F "${chain}" 2>/dev/null
"${ban_ipt6_cmd}" "${timeout}" -X "${chain}" 2>/dev/null
fi
done
for src in ${ban_sources} maclist blacklist whitelist
do
if [ "${src}" = "maclist" ] && [ -n "$("${ban_ipset_cmd}" -q -n list "${src}")" ]
then
"${ban_ipset_cmd}" -q destroy "${src}"
else
for proto in "4" "6"
do
if [ -n "$("${ban_ipset_cmd}" -q -n list "${src}_${proto}")" ]
then
"${ban_ipset_cmd}" -q destroy "${src}_${proto}"
fi
done
fi
done
f_log "debug" "f_ipset ::: name: ${src_name:-"-"}, mode: ${mode:-"-"}"
;;
esac
}
# write to syslog
#
f_log()
{
local class="${1}" log_msg="${2}"
if [ -n "${log_msg}" ] && { [ "${class}" != "debug" ] || [ "${ban_debug}" = "1" ]; }
then
if [ -x "${ban_logger_cmd}" ]
then
"${ban_logger_cmd}" -p "${class}" -t "banIP-${ban_ver%-*}[${$}]" "${log_msg}"
else
printf "%s %s %s\n" "${class}" "banIP-${ban_ver%-*}[${$}]" "${log_msg}"
fi
if [ "${class}" = "err" ]
then
f_jsnup "error"
f_ipset "destroy"
f_rmbckp
f_rmtmp
exit 1
fi
fi
}
# kill all relevant background processes
#
f_pidx()
{
local pids ppid="${1}"
pids="$(pgrep -P "${ppid}" 2>/dev/null | awk '{ORS=" ";print $0}')"
kill -HUP "${ppid}" "${pids}" 2>/dev/null
> "${ban_bgpidfile}"
}
# start log service to trace failed ssh/luci logins
#
f_bgsrv()
{
local bg_pid action="${1}"
bg_pid="$(cat "${ban_bgpidfile}" 2>/dev/null)"
if [ "${action}" = "start" ] && [ -x "${ban_logservice}" ] && [ "${ban_monitor_enabled}" = "1" ] && [ "${ban_whitelistonly}" = "0" ]
then
if [ -n "${bg_pid}" ]
then
f_pidx "${bg_pid}"
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "dropbear")" ]
then
ban_search="Exit before auth from|"
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "sshd")" ]
then
ban_search="${ban_search}error: maximum authentication attempts exceeded|sshd.*Connection closed by.*\[preauth\]|"
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "luci")" ]
then
ban_search="${ban_search}luci: failed login|"
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "nginx")" ]
then
ban_search="${ban_search}nginx\[[0-9]+\]:.*\[error\].*open().*client: [[:alnum:].:]+|"
fi
(
"${ban_logservice}" "${ban_ver}" "${ban_search%?}" &
printf "%s" "${!}" > "${ban_bgpidfile}"
)
elif { [ "${action}" = "stop" ] || [ "${ban_monitor_enabled}" = "0" ]; } && [ -n "${bg_pid}" ]
then
f_pidx "${bg_pid}"
fi
f_log "debug" "f_bgsrv ::: action: ${action:-"-"}, bg_pid (old/new): ${bg_pid}/$(cat "${ban_bgpidfile}" 2>/dev/null), monitor_enabled: ${ban_monitor_enabled:-"-"}, log_service: ${ban_logservice:-"-"}"
}
# download controller
#
f_down()
{
local src_name="${1}" proto="${2}" src_ipver="${3}" src_url="${4}" src_rule="${5}" src_comp="${6}"
local ip start_ts end_ts src_settype src_log src_rc tmp_load tmp_file tmp_raw tmp_cnt tmp_err
start_ts="$(date +%s)"
if [ -n "$(printf "%s\n" "${ban_settype_src}" | grep -F "${src_name}")" ]
then
src_settype="src"
elif [ -n "$(printf "%s\n" "${ban_settype_dst}" | grep -F "${src_name}")" ]
then
src_settype="dst"
elif [ -n "$(printf "%s\n" "${ban_settype_all}" | grep -F "${src_name}")" ]
then
src_settype="src+dst"
else
src_settype="${ban_global_settype}"
fi
src_name="${src_name}_${proto}"
tmp_load="${ban_tmpfile}.${src_name}.load"
tmp_file="${ban_tmpfile}.${src_name}.file"
tmp_raw="${tmp_file}.raw"
tmp_cnt="${tmp_file}.cnt"
tmp_err="${tmp_file}.err"
# 'resume' mode
#
if [ "${ban_action}" = "resume" ]
then
if [ "${src_name%_*}" = "maclist" ]
then
src_name="maclist"
fi
f_ipset "resume"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
return
fi
fi
# handle local downloads
#
case "${src_name%_*}" in
"blacklist"|"whitelist")
printf "%s\n" "0" > "${tmp_cnt}"
awk "${src_rule}" "${src_url}" > "${tmp_file}"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
f_ipset "create"
if [ ! -f "${tmp_dns}" ] && { { [ "${proto}" = "4" ] && [ "${ban_proto4_enabled}" = "1" ]; } || \
{ [ "${proto}" = "6" ] && [ "${ban_proto6_enabled}" = "1" ] && [ "${ban_proto4_enabled}" = "0" ]; }; }
then
tmp_dns="${ban_tmpbase}/${src_name%_*}.dns"
src_rule="/^([[:alnum:]_-]{1,63}\\.)+[[:alpha:]]+([[:space:]]|$)/{print tolower(\$1)}"
awk "${src_rule}" "${src_url}" > "${tmp_dns}"
src_rc="${?}"
if [ "${src_rc}" = "0" ] && [ -s "${tmp_dns}" ]
then
( "${ban_dnsservice}" "${ban_ver}" "${ban_action}" "${src_name%_*}" "${tmp_dns}" & )
else
rm -f "${tmp_dns}"
fi
fi
else
f_log "debug" "f_down ::: name: ${src_name}, url: ${src_url}, rule: ${src_rule}, rc: ${src_rc}"
fi
return
;;
"maclist")
src_name="${src_name%_*}"
tmp_file="${ban_tmpfile}.${src_name}.file"
tmp_cnt="${tmp_file}.cnt"
tmp_err="${tmp_file}.err"
awk "${src_rule}" "${src_url}" > "${tmp_file}"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
f_ipset "create"
else
f_log "debug" "f_down ::: name: ${src_name}, url: ${src_url}, rule: ${src_rule}, rc: ${src_rc}"
fi
return
;;
esac
# 'refresh' mode
#
if [ "${ban_action}" = "refresh" ]
then
f_ipset "refresh"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
return
fi
fi
# 'start' mode
#
if [ "${ban_action}" = "start" ]
then
f_ipset "restore"
fi
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
awk "${src_rule}" "${tmp_load}" 2>/dev/null > "${tmp_file}"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
f_ipset "create"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
return
fi
fi
fi
# handle country related downloads
#
if [ "${src_name%_*}" = "country" ]
then
for country in ${ban_countries}
do
src_log="$("${ban_fetchutil}" ${ban_fetchparm} "${tmp_raw}" "${src_url}${country}-aggregated.zone" 2>&1)"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
cat "${tmp_raw}" 2>/dev/null >> "${tmp_load}"
else
continue
fi
done
# handle asn related downloads
#
elif [ "${src_name%_*}" = "asn" ]
then
for asn in ${ban_asns}
do
src_log="$("${ban_fetchutil}" ${ban_fetchparm} "${tmp_raw}" "${src_url}AS${asn}" 2>&1)"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
cat "${tmp_raw}" 2>/dev/null >> "${tmp_load}"
else
continue
fi
done
# handle compressed downloads
#
elif [ -n "${src_comp}" ]
then
case "${src_comp}" in
"gz")
src_log="$("${ban_fetchutil}" ${ban_fetchparm} "${tmp_raw}" "${src_url}" 2>&1)"
src_rc="${?}"
if [ "${src_rc}" -eq 0 ]
then
zcat "${tmp_raw}" 2>/dev/null > "${tmp_load}"
src_rc="${?}"
fi
;;
esac
# handle normal downloads
#
else
src_log="$("${ban_fetchutil}" ${ban_fetchparm} "${tmp_load}" "${src_url}" 2>&1)"
src_rc="${?}"
fi
# download post-processing (backup, restore, regex)
#
if [ "${src_rc}" = "0" ]
then
f_ipset "backup"
src_rc="${?}"
elif [ "${ban_action}" != "start" ] && [ "${ban_action}" != "refresh" ]
then
f_ipset "restore"
src_rc="${?}"
fi
if [ "${src_rc}" = "0" ]
then
awk "${src_rule}" "${tmp_load}" 2>/dev/null > "${tmp_file}"
src_rc="${?}"
if [ "${src_rc}" = "0" ]
then
f_ipset "create"
src_rc="${?}"
elif [ "${ban_action}" != "refresh" ]
then
f_ipset "refresh"
src_rc="${?}"
fi
else
src_log="$(printf "%s" "${src_log}" | awk '{ORS=" ";print $0}')"
if [ "${ban_action}" != "refresh" ]
then
f_ipset "refresh"
src_rc="${?}"
fi
f_log "debug" "f_down ::: name: ${src_name}, url: ${src_url}, rule: ${src_rule}, rc: ${src_rc}, log: ${src_log:-"-"}"
fi
}
# main controller
#
f_main()
{
local src_name src_url_4 src_rule_4 src_url_6 src_rule_6 src_comp src_rc src_ts log_raw log_merge log_ips log_count hold err_file cnt_file cnt=0
# prepare logfile excerpts (dropbear, sshd, luci)
#
if [ "${ban_autoblacklist}" = "1" ] || [ "${ban_monitor_enabled}" = "1" ]
then
log_raw="$(${ban_logread_cmd} -l "${ban_loglimit}")"
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "dropbear")" ]
then
log_ips="$(printf "%s\n" "${log_raw}" | grep -E "Exit before auth from" | \
awk 'match($0,/<[0-9A-f:\.]+:/){printf "%s\n",substr($0,RSTART+1,RLENGTH-2)}' | awk '!seen[$NF]++' | awk '{ORS=" ";print $NF}')"
for ip in ${log_ips}
do
log_count="$(printf "%s\n" "${log_raw}" | grep -cE "Exit before auth from <${ip}")"
if [ "${log_count}" -ge "${ban_ssh_logcount}" ]
then
log_merge="${log_merge} ${ip}"
fi
done
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "sshd")" ]
then
log_ips="$(printf "%s\n" "${log_raw}" | grep -E "error: maximum authentication attempts exceeded|sshd.*Connection closed by.*\[preauth\]" | \
awk 'match($0,/[0-9A-f:\.]+ port/){printf "%s\n",substr($0,RSTART,RLENGTH-5)}' | awk '!seen[$NF]++' | awk '{ORS=" ";print $NF}')"
for ip in ${log_ips}
do
log_count="$(printf "%s\n" "${log_raw}" | grep -cE "error: maximum authentication attempts exceeded.*${ip}|sshd.*Connection closed by.*${ip}.*\[preauth\]")"
if [ "${log_count}" -ge "${ban_ssh_logcount}" ]
then
log_merge="${log_merge} ${ip}"
fi
done
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "luci")" ]
then
log_ips="$(printf "%s\n" "${log_raw}" | grep -E "luci: failed login on " | \
awk 'match($0,/[0-9A-f:\.]+$/){printf "%s\n",substr($0,RSTART,RLENGTH)}' | awk '!seen[$NF]++' | awk '{ORS=" ";print $NF}')"
for ip in ${log_ips}
do
log_count="$(printf "%s\n" "${log_raw}" | grep -cE "luci: failed login on .*from ${ip}")"
if [ "${log_count}" -ge "${ban_luci_logcount}" ]
then
log_merge="${log_merge} ${ip}"
fi
done
fi
if [ -n "$(printf "%s\n" "${ban_logterms}" | grep -F "nginx")" ]
then
log_ips="$(printf "%s\n" "${log_raw}" | grep -oE "nginx(\[[0-9]+\])?:.*\[error\].*open\(\).*client: [[:alnum:].:]+" | \
awk '!seen[$NF]++' | awk '{ORS=" ";print $NF}')"
for ip in ${log_ips}
do
log_count="$(printf "%s\n" "${log_raw}" | grep -cE "nginx(\[[0-9]+\])?:.*\[error\].*open\(\).*client: ${ip}")"
if [ "${log_count}" -ge "${ban_nginx_logcount}" ]
then
log_merge="${log_merge} ${ip}"
fi
done
fi
fi
# prepare new black- and whitelist entries
#
if [ "${ban_autowhitelist}" = "1" ] && [ -f "${ban_whitelist}" ]
then
for ip in ${ban_subnets}
do
if [ -z "$(grep -F "${ip}" "${ban_whitelist}")" ]
then
src_ts="# added on $(date "+%d.%m.%Y %H:%M:%S")"
printf "%-42s%s\n" "${ip}" "${src_ts}" >> "${ban_whitelist}"
f_log "info" "IP address '${ip}' added to whitelist"
fi
done
fi
if [ "${ban_autoblacklist}" = "1" ] && [ -f "${ban_blacklist}" ]
then
for ip in ${log_merge}
do
if [ -z "$(grep -F "${ip}" "${ban_blacklist}")" ]
then
src_ts="# added on $(date "+%d.%m.%Y %H:%M:%S")"
printf "%-42s%s\n" "${ip}" "${src_ts}" >> "${ban_blacklist}"
f_log "info" "IP address '${ip}' added to blacklist"
fi
done
fi
# initial ipset/iptables creation
#
f_ipset "initial"
if [ "${?}" != "0" ]
then
f_log "err" "banIP processing failed, fatal error during ipset/iptables creation (${ban_sysver})"
fi
# load local source files (maclist, blacklist, whitelist)
#
for src_name in ${ban_localsources}
do
if [ "${src_name}" = "maclist" ] && [ -s "${ban_maclist}" ]
then
(
src_rule_4="/^([0-9A-z][0-9A-z]:){5}[0-9A-z]{2}([[:space:]]|$)/{print \"add ${src_name} \"toupper(\$1)}"
f_down "${src_name}" "mac" "mac" "${ban_maclist}" "${src_rule_4}"
)&
fi
if [ "${ban_proto4_enabled}" = "1" ]
then
if [ "${src_name}" = "blacklist" ] && [ -s "${ban_blacklist}" ] && [ "${ban_whitelistonly}" = "0" ]
then
(
src_rule_4="/^(([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:]]|$)/{print \"add ${src_name}_4 \"\$1}"
f_down "${src_name}" "4" "inet" "${ban_blacklist}" "${src_rule_4}"
)&
elif [ "${src_name}" = "whitelist" ] && [ -s "${ban_whitelist}" ]
then
(
src_rule_4="/^(([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:]]|$)/{print \"add ${src_name}_4 \"\$1}"
f_down "${src_name}" "4" "inet" "${ban_whitelist}" "${src_rule_4}"
)&
fi
else
(
src_name="${src_name}_4"
f_ipset "flush"
)&
fi
if [ "${ban_proto6_enabled}" = "1" ]
then
if [ "${src_name}" = "blacklist" ] && [ -s "${ban_blacklist}" ] && [ "${ban_whitelistonly}" = "0" ]
then
(
src_rule_6="/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]]|$)/{print \"add ${src_name}_6 \"\$1}"
f_down "${src_name}" "6" "inet6" "${ban_blacklist}" "${src_rule_6}"
)&
elif [ "${src_name}" = "whitelist" ] && [ -s "${ban_whitelist}" ]
then
(
src_rule_6="/^(([0-9A-f]{0,4}:){1,7}[0-9A-f]{0,4}:?(\\/(1?[0-2][0-8]|[0-9][0-9]))?)([[:space:]]|$)/{print \"add ${src_name}_6 \"\$1}"
f_down "${src_name}" "6" "inet6" "${ban_whitelist}" "${src_rule_6}"
)&
fi
else
(
src_name="${src_name}_6"
f_ipset "flush"
)&
fi
done
wait
# loop over all external sources
#
if [ "${ban_whitelistonly}" = "0" ]
then
for src_name in ${ban_sources}
do
# get source data from JSON file
#
json_select "${src_name}" >/dev/null 2>&1
if [ "${?}" != "0" ]
then
continue
fi
json_objects="url_4 rule_4 url_6 rule_6 comp"
for object in ${json_objects}
do
eval json_get_var src_${object} "\${object}" >/dev/null 2>&1
done
json_select ..
# handle external IPv4 source downloads in a subshell
#
if [ "${ban_proto4_enabled}" = "1" ] && [ -n "${src_url_4}" ] && [ -n "${src_rule_4}" ]
then
(
f_down "${src_name}" "4" "inet" "${src_url_4}" "${src_rule_4}" "${src_comp}"
)&
fi
# handle external IPv6 source downloads in a subshell
#
if [ "${ban_proto6_enabled}" = "1" ] && [ -n "${src_url_6}" ] && [ -n "${src_rule_6}" ]
then
(
f_down "${src_name}" "6" "inet6" "${src_url_6}" "${src_rule_6}" "${src_comp}"
)&
fi
# control/limit download queues
#
hold=$((cnt%ban_maxqueue))
if [ "${hold}" = "0" ]
then
wait
fi
cnt=$((cnt+1))
done
wait
fi
# error out
#
for err_file in "${ban_tmpfile}."*".err"
do
if [ -f "${err_file}" ]
then
f_log "err" "banIP processing failed, fatal iptables errors during subshell processing (${ban_sysver})"
fi
done
# finish processing
#
ban_sources=""
for cnt_file in "${ban_tmpfile}."*".cnt"
do
if [ -f "${cnt_file}" ]
then
read -r cnt < "${cnt_file}"
ban_cnt=$((ban_cnt+cnt))
ban_setcnt=$((ban_setcnt+1))
src_name="$(printf "%s" "${cnt_file}" | grep -Eo "[a-z0-9_]+.file.cnt")"
src_name="${src_name%%.*}"
if [ -z "$(printf "%s" "${ban_sources}" | grep -F "${src_name%_*}")" ]
then
ban_sources="${ban_sources} ${src_name%_*}"
ban_allsources="${ban_allsources//${src_name%_*}/}"
fi
fi
done
for src_name in ${ban_allsources}
do
if [ "${src_name}" = "maclist" ]
then
f_ipset "flush"
else
for proto in "4" "6"
do
src_name="${src_name%_*}_${proto}"
f_ipset "flush"
if [ "${src_name%_*}" != "blacklist" ] && [ "${src_name%_*}" != "whitelist" ]
then
f_ipset "remove"
fi
done
fi
done
f_log "info" "${ban_setcnt} IPSets with overall ${ban_cnt} IPs/Prefixes loaded successfully (${ban_sysver})"
f_jsnup
f_rmtmp
f_bgsrv "start"
}
# query ipsets for certain IP
#
f_query()
{
local src proto result query_start query_end query_timeout="30" match="0" search="${1}"
if [ -z "${search}" ]
then
printf "%s\n" "::: missing search term, please submit a single ip or mac address :::"
else
query_start="$(date "+%s")"
printf "%s\n%s\n%s\n" ":::" "::: search '${search}' in banIP related IPSets" ":::"
for src in ${ban_localsources} ${ban_sources} ${ban_extrasources}
do
if [ "${src}" = "maclist" ] && [ -n "$("${ban_ipset_cmd}" -q -n list "${src}")" ]
then
result="$(ipset -q test ${src} ${search} >/dev/null 2>&1; printf "%u" "${?}")"
if [ "${result}" = "0" ]
then
match="1"
printf "%s\n" " - found in IPSet '${src}'"
break
fi
else
for proto in "4" "6"
do
if [ -n "$("${ban_ipset_cmd}" -q -n list "${src}_${proto}")" ]
then
result="$(ipset -q test ${src}_${proto} ${search} >/dev/null 2>&1; printf "%u" "${?}")"
if [ "${result}" = "0" ]
then
match="1"
printf "%s\n" " - found in IPSet '${src}_${proto}'"
fi
fi
done
fi
query_end="$(date "+%s")"
if [ "$((query_end-query_start))" -gt "${query_timeout}" ]
then
printf "%s\n\n" " - [...]"
break
fi
done
if [ "${match}" = "0" ]
then
printf "%s\n\n" " - no match"
fi
fi
}
# generate statistics
#
f_report()
{
local report_json report_txt bg_pid content proto src src_list cnt cnt_mac cnt_cidr cnt_ip cnt_acc cnt_sum="0" cnt_set_sum="1" cnt_acc_sum="0" cnt_mac_sum="0" cnt_ip_sum="0" cnt_cidr_sum="0" cnt_set_sum="0" action="${1}"
report_json="${ban_reportdir}/ban_report.json"
report_txt="${ban_reportdir}/ban_mailreport.txt"
# build json file
#
if [ "${action}" != "json" ] && { [ -n "$("${ban_ipt4_savecmd}" | grep " ${ban_chain} ")" ] || [ -n "$("${ban_ipt6_savecmd}" | grep " ${ban_chain} ")" ]; }
then
> "${report_json}"
> "${report_txt}"
printf "%s\n" "{" >> "${report_json}"
printf "\t%s\n" "\"ipsets\": {" >> "${report_json}"
for src in ${ban_localsources} ${ban_sources} ${ban_extrasources}
do
if [ -n "$(printf "%s" "${ban_extrasources}" | grep -F "${src}")" ]
then
set_type="n/a"
else
if [ -n "$(printf "%s\n" "${ban_settype_src}" | grep -F "${src}")" ]
then
set_type="src"
elif [ -n "$(printf "%s\n" "${ban_settype_dst}" | grep -F "${src}")" ]
then
set_type="dst"
elif [ -n "$(printf "%s\n" "${ban_settype_all}" | grep -F "${src}")" ]
then
set_type="src+dst"
else
set_type="${ban_global_settype}"
fi
fi
if [ "${src}" = "maclist" ]
then
src_list="$("${ban_ipset_cmd}" -q list "${src}")"
if [ -n "${src_list}" ]
then
cnt="$(printf "%s" "${src_list}" | awk '/^Number of entries:/{print $4}')"
cnt_acc="$(printf "%s" "${src_list}" | grep -cE "packets [1-9]+")"
cnt_acc_sum=$((cnt_acc_sum+cnt_acc))
cnt_mac_sum="${cnt}"
cnt_sum=$((cnt_sum+cnt))
if [ "${cnt_set_sum}" != "0" ]
then
printf "%s\n" "," >> "${report_json}"
fi
printf "\t\t%s\n" "\"${src}\": {" >> "${report_json}"
printf "\t\t\t%s\n" "\"type\": \"${set_type}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count\": \"${cnt}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_ip\": \"0\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_cidr\": \"0\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_mac\": \"${cnt}\"," >> "${report_json}"
printf "\t\t\t%s" "\"count_acc\": \"${cnt_acc}\"" >> "${report_json}"
printf ",\n\t\t\t%s" "\"member_acc\": [" >> "${report_json}"
printf "%s" "${src_list}" | awk 'match($0,/ packets [1-9]+/){printf "%s %s\n",$1,substr($0,RSTART+9,RLENGTH-9)}' | \
awk 'BEGIN{i=0};{i=i+1;if(i==1){printf "\n\t\t\t\t\t{\n\t\t\t\t\t\t\"member\": \"%s\",\n\t\t\t\t\t\t\"packets\": \"%s\"\n\t\t\t\t\t}",$1,$2}else{printf ",\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\"member\": \"%s\",\n\t\t\t\t\t\t\t\"packets\": \"%s\"\n\t\t\t\t\t\t}",$1,$2}}' >> "${report_json}"
printf "\n\t\t\t%s\n" "]" >> "${report_json}"
printf "\t\t%s" "}" >> "${report_json}"
cnt_set_sum=$((cnt_set_sum+1))
fi
else
for proto in "4" "6"
do
src_list="$("${ban_ipset_cmd}" -q list "${src}_${proto}")"
if [ -n "${src_list}" ]
then
cnt="$(printf "%s\n" "${src_list}" | awk '/^Number of entries:/{print $4}')"
cnt_cidr="$(printf "%s\n" "${src_list}" | grep -cE "/[0-9]{1,3} ")"
cnt_ip=$((cnt-cnt_cidr-cnt_mac))
cnt_acc="$(printf "%s\n" "${src_list}" | grep -cE "packets [1-9]+")"
cnt_cidr_sum=$((cnt_cidr_sum+cnt_cidr))
cnt_ip_sum=$((cnt_ip_sum+cnt_ip))
cnt_acc_sum=$((cnt_acc_sum+cnt_acc))
cnt_sum=$((cnt_sum+cnt))
if [ "${cnt_set_sum}" != "0" ]
then
printf "%s\n" "," >> "${report_json}"
fi
printf "\t\t%s\n" "\"${src}_${proto}\": {" >> "${report_json}"
printf "\t\t\t%s\n" "\"type\": \"${set_type}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count\": \"${cnt}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_ip\": \"${cnt_ip}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_cidr\": \"${cnt_cidr}\"," >> "${report_json}"
printf "\t\t\t%s\n" "\"count_mac\": \"0\"," >> "${report_json}"
printf "\t\t\t%s" "\"count_acc\": \"${cnt_acc}\"" >> "${report_json}"
printf ",\n\t\t\t%s" "\"member_acc\": [" >> "${report_json}"
printf "%s" "${src_list}" | awk 'match($0,/ packets [1-9]+/){printf "%s %s\n",$1,substr($0,RSTART+9,RLENGTH-9)}' | \
awk 'BEGIN{i=0};{i=i+1;if(i==1){printf "\n\t\t\t\t\t{\n\t\t\t\t\t\t\"member\": \"%s\",\n\t\t\t\t\t\t\"packets\": \"%s\"\n\t\t\t\t\t}",$1,$2}else{printf ",\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\"member\": \"%s\",\n\t\t\t\t\t\t\t\"packets\": \"%s\"\n\t\t\t\t\t\t}",$1,$2}}' >> "${report_json}"
printf "\n\t\t\t%s\n" "]" >> "${report_json}"
printf "\t\t%s" "}" >> "${report_json}"
cnt_set_sum=$((cnt_set_sum+1))
fi
done
fi
done
printf "\n\t%s" "}" >> "${report_json}"
printf ",\n\t%s\n" "\"timestamp\": \"$(date "+%d.%m.%Y %H:%M:%S")\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_set_sum\": \"${cnt_set_sum}\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_ip_sum\": \"${cnt_ip_sum}\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_cidr_sum\": \"${cnt_cidr_sum}\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_mac_sum\": \"${cnt_mac_sum}\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_sum\": \"${cnt_sum}\"," >> "${report_json}"
printf "\t%s\n" "\"cnt_acc_sum\": \"${cnt_acc_sum}\"" >> "${report_json}"
printf "%s\n" "}" >> "${report_json}"
fi
# output preparation
#
if [ -s "${report_json}" ] && { [ "${action}" = "cli" ] || [ "${action}" = "mail" ]; }
then
printf "%s\n%s\n%s\n" ":::" "::: report on all banIP related IPSets" ":::" >> "${report_txt}"
json_load_file "${report_json}" >/dev/null 2>&1
json_get_var value "timestamp" >/dev/null 2>&1
printf " + %s\n" "Report timestamp ::: ${value}" >> "${report_txt}"
json_get_var value "cnt_set_sum" >/dev/null 2>&1
printf " + %s\n" "Number of all IPSets ::: ${value:-"0"}" >> "${report_txt}"
json_get_var value "cnt_sum" >/dev/null 2>&1
printf " + %s\n" "Number of all entries ::: ${value:-"0"}" >> "${report_txt}"
json_get_var value "cnt_ip_sum" >/dev/null 2>&1
printf " + %s\n" "Number of IP entries ::: ${value:-"0"}" >> "${report_txt}"
json_get_var value "cnt_cidr_sum" >/dev/null 2>&1
printf " + %s\n" "Number of CIDR entries ::: ${value:-"0"}" >> "${report_txt}"
json_get_var value "cnt_mac_sum" >/dev/null 2>&1
printf " + %s\n" "Number of MAC entries ::: ${value:-"0"}" >> "${report_txt}"
json_get_var value "cnt_acc_sum" >/dev/null 2>&1
printf " + %s\n" "Number of accessed entries ::: ${value:-"0"}" >> "${report_txt}"
json_select "ipsets"
json_get_keys ipsetlist
if [ -n "${ipsetlist}" ]
then
printf "%s\n%s\n%s\n" ":::" "::: IPSet details" ":::" >> "${report_txt}"
printf "%-25s%-12s%-11s%-10s%-10s%-10s%-10s%s\n" " Name" "Type" "Count" "Cnt_IP" "Cnt_CIDR" "Cnt_MAC" "Cnt_ACC" "Entry details (Entry/Count)" >> "${report_txt}"
printf "%s\n" " --------------------------------------------------------------------------------------------------------------------" >> "${report_txt}"
fi
for ipset in ${ipsetlist}
do
set_info="${ipset}"
acc_info=""
json_select "${ipset}"
json_get_keys detaillist
for detail in ${detaillist}
do
if [ "${detail}" != "member_acc" ]
then
json_get_var value "${detail}" >/dev/null 2>&1
set_info="${set_info} ${value}"
elif [ "${detail}" = "member_acc" ]
then
index=1
json_select "${detail}"
while json_get_type type "${index}" && [ "${type}" = "object" ]
do
json_get_values values "${index}" >/dev/null 2>&1
acc_info="${acc_info} ${values}"
index=$((index+1))
done
json_select ".."
fi
done
printf " %-21s%-12s%-11s%-10s%-10s%-10s%s\n" ${set_info} >> "${report_txt}"
if [ -n "${acc_info}" ]
then
printf " %-25s%s\n" ${acc_info} >> "${report_txt}"
fi
printf "%s\n" " --------------------------------------------------------------------------------------------------------------------" >> "${report_txt}"
json_select ".."
done
content="$(cat "${report_txt}" 2>/dev/null)"
rm -f "${report_txt}"
fi
# report output
#
if [ "${action}" = "cli" ]
then
printf "%s\n" "${content}"
elif [ "${action}" = "json" ]
then
cat "${ban_reportdir}/ban_report.json"
elif [ "${action}" = "mail" ] && [ "${ban_mail_enabled}" = "1" ] && [ -x "${ban_mailservice}" ]
then
( "${ban_mailservice}" "${ban_ver}" "${content}" >/dev/null 2>&1 )&
bg_pid="${!}"
fi
f_log "debug" "f_report ::: action: ${action}, report_json: ${report_json}, report_txt: ${report_txt}, bg_pid: ${bg_pid:-"-"}"
}
# update runtime information
#
f_jsnup()
{
local memory entry runtime cnt_info status="${1:-"enabled"}"
if [ "${status}" = "enabled" ] || [ "${status}" = "error" ]
then
ban_endtime="$(date "+%s")"
cnt_info="${ban_setcnt} IPSets with ${ban_cnt} IPs/Prefixes"
memory="$(awk '/^MemTotal|^MemFree|^MemAvailable/{ORS="/"; print int($2/1000)}' "/proc/meminfo" 2>/dev/null | awk '{print substr($0,1,length($0)-1)}')"
if [ "$(( (ban_endtime-ban_starttime)/60 ))" -lt "60" ]
then
runtime="${ban_action}, $(( (ban_endtime-ban_starttime)/60 ))m $(( (ban_endtime-ban_starttime)%60 ))s, ${memory:-0}, $(date "+%d.%m.%Y %H:%M:%S")"
else
runtime="${ban_action}, n/a, ${memory:-0}, $(date "+%d.%m.%Y %H:%M:%S")"
fi
fi
> "${ban_rtfile}"
json_load_file "${ban_rtfile}" >/dev/null 2>&1
json_init
json_add_string "status" "${status}"
json_add_string "version" "${ban_ver}"
json_add_string "ipset_info" "${cnt_info:-"-"}"
json_add_array "active_sources"
if [ "${status}" = "running" ] || [ "${status}" = "error" ]
then
json_add_object
json_add_string "source" "-"
json_close_object
else
for entry in ${ban_sources}
do
json_add_object
json_add_string "source" "${entry}"
json_close_object
done
fi
json_close_array
json_add_array "active_devs"
for entry in ${ban_devs}
do
json_add_object
json_add_string "dev" "${entry}"
json_close_object
done
json_close_array
json_add_array "active_ifaces"
for entry in ${ban_ifaces}
do
json_add_object
json_add_string "iface" "${entry}"
json_close_object
done
json_close_array
json_add_array "active_logterms"
for entry in ${ban_logterms}
do
json_add_object
json_add_string "term" "${entry}"
json_close_object
done
json_close_array
json_add_array "active_subnets"
for entry in ${ban_subnets}
do
json_add_object
json_add_string "subnet" "${entry}"
json_close_object
done
json_close_array
json_add_string "run_infos" "settype: ${ban_global_settype}, backup_dir: ${ban_backupdir}, report_dir: ${ban_reportdir}"
json_add_string "run_flags" "protocols (4/6): $(f_char ${ban_proto4_enabled})/$(f_char ${ban_proto6_enabled}), log (src/dst): $(f_char ${ban_logsrc_enabled})/$(f_char ${ban_logdst_enabled}), monitor: $(f_char ${ban_monitor_enabled}), mail: $(f_char ${ban_mail_enabled}), whitelist only: $(f_char ${ban_whitelistonly})"
json_add_string "last_run" "${runtime:-"-"}"
json_add_string "system" "${ban_sysver}"
json_dump > "${ban_rtfile}"
if [ "${ban_mail_enabled}" = "1" ] && [ -x "${ban_mailservice}" ] && { [ "${status}" = "error" ] || \
{ [ "${status}" = "enabled" ] && { [ -z "${ban_mailactions}" ] || [ -n "$(printf "%s\n" "${ban_mailactions}" | grep -F "${ban_action}")" ]; }; }; }
then
( "${ban_mailservice}" "${ban_ver}" >/dev/null 2>&1 )&
bg_pid="${!}"
fi
f_log "debug" "f_jsnup ::: status: ${status:-"-"}, action: ${ban_action}, mail_enabled: ${ban_mail_enabled}, mail_actions: ${ban_mailactions}, mail_service: ${ban_mailservice}, mail_pid: ${bg_pid:-"-"}"
}
# source required system libraries
#
if [ -r "/lib/functions.sh" ] && [ -r "/lib/functions/network.sh" ] && [ -r "/usr/share/libubox/jshn.sh" ]
then
. "/lib/functions.sh"
. "/lib/functions/network.sh"
. "/usr/share/libubox/jshn.sh"
else
f_log "err" "system libraries not found"
fi
if [ "${ban_action}" = "suspend" ] || [ "${ban_action}" = "resume" ] || \
[ "${ban_action}" = "report" ] || [ "${ban_action}" = "query" ]
then
json_load_file "${ban_rtfile}" >/dev/null 2>&1
json_get_var ban_status "status"
fi
# version information
#
if [ "${ban_action}" = "version" ]
then
printf "%s\n" "${ban_ver}"
exit 0
fi
# handle different banIP actions
#
f_load
case "${ban_action}" in
"stop")
f_bgsrv "stop"
f_ipset "destroy"
f_jsnup "stopped"
f_rmbckp
;;
"restart")
f_ipset "destroy"
f_rmbckp
f_env
f_main
;;
"suspend")
if [ "${ban_status}" = "enabled" ] && [ "${ban_whitelistonly}" = "0" ]
then
f_bgsrv "stop"
f_jsnup "running"
f_ipset "suspend"
f_jsnup "paused"
fi
f_rmtmp
;;
"resume")
if [ "${ban_status}" = "paused" ] && [ "${ban_whitelistonly}" = "0" ]
then
f_env
f_main
else
f_rmtmp
fi
;;
"query")
if [ "${ban_status}" = "enabled" ]
then
f_query "${2}"
fi
;;
"report")
if [ "${ban_status}" = "enabled" ] || [ "${2}" = "json" ]
then
f_report "${2}"
fi
;;
"start"|"reload"|"refresh")
f_env
f_main
;;
esac