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35 lines
1.0 KiB
35 lines
1.0 KiB
#!/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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# This is free software, licensed under the GNU General Public License v3.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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LC_ALL=C
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PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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ban_ver="${1}"
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ban_sshdaemon="${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 -e "${ban_sshdaemon}\|luci: failed login" | \
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{ grep -qE "Exit before auth|luci: failed login|[0-9]+ \[preauth\]$"; [ $? -eq 0 ] && /etc/init.d/banip refresh; }
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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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