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#!/bin/sh
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# log service to trace failed ssh/luci logins and conditionally refresh banIP
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# written by Dirk Brenken (dev@brenken.org)
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#
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# This is free software, licensed under the GNU General Public License v3.
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#
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# (s)hellcheck exceptions
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# shellcheck disable=1091,2030,2031,2034,2039,2086,2129,2140,2143,2154,2181,2183,2188
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export LC_ALL=C
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export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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set -o pipefail
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ban_ver="${1}"
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ban_search="${2}"
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ban_logger="$(command -v logger)"
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ban_logread="$(command -v logread)"
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f_log()
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{
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local class="${1}" log_msg="${2}"
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if [ -x "${ban_logger}" ]
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then
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"${ban_logger}" -p "${class}" -t "banIP-${ban_ver%-*}[${$}]" "${log_msg}"
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else
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printf "%s %s %s\n" "${class}" "banIP-${ban_ver%-*}[${$}]" "${log_msg}"
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fi
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}
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if [ -x "${ban_logread}" ]
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then
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f_log "info" "log/banIP service started"
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"${ban_logread}" -f | { grep -qE "${ban_search}"; [ "${?}" = "0" ] && { /etc/init.d/banip refresh; exit 0; }; }
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else
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f_log "err" "can't start log/banIP service"
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fi
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