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Merge pull request #502 from nmurali94/master

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Extend RDR to support logging
This commit is contained in:
Christer Edwards
2022-05-04 14:47:30 -06:00
committed by GitHub
parent b9d38a5d01 6e5a566d7f
commit d0903347a6
1 changed files with 58 additions and 5 deletions
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63
usr/local/share/bastille/rdr.sh
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@@ -32,7 +32,7 @@
. /usr/local/etc/bastille/bastille.conf
usage() {
error_exit "Usage: bastille rdr TARGET [clear|list|(tcp|udp host_port jail_port)]"
error_exit "Usage: bastille rdr TARGET [clear|list|(tcp|udp host_port jail_port [log ['(' logopts ')'] ] )]"
}
# Handle special-case commands first.
@@ -91,6 +91,16 @@ if ! grep -qs "$1 $2 $3" "${bastille_jailsdir}/${JAIL_NAME}/rdr.conf"; then
fi
}
persist_rdr_log_rule() {
proto=$1;host_port=$2;jail_port=$3;
shift 3;
log=$@;
if ! grep -qs "$proto $host_port $jail_port $log" "${bastille_jailsdir}/${JAIL_NAME}/rdr.conf"; then
echo "$proto $host_port $jail_port $log" >> "${bastille_jailsdir}/${JAIL_NAME}/rdr.conf"
fi
}
# function: load rdr rule via pfctl
load_rdr_rule() {
( pfctl -a "rdr/${JAIL_NAME}" -Psn;
@@ -98,6 +108,16 @@ load_rdr_rule() {
| pfctl -a "rdr/${JAIL_NAME}" -f-
}
# function: load rdr rule with log via pfctl
load_rdr_log_rule() {
proto=$1;host_port=$2;jail_port=$3;
shift 3;
log=$@
( pfctl -a "rdr/${JAIL_NAME}" -Psn;
printf '%s\nrdr pass %s on $ext_if inet proto %s to port %s -> %s port %s\n' "$EXT_IF" "$log" "$proto" "$host_port" "$JAIL_IP" "$jail_port" ) \
| pfctl -a "rdr/${JAIL_NAME}" -f-
}
while [ $# -gt 0 ]; do
case "$1" in
list)
@@ -127,11 +147,44 @@ while [ $# -gt 0 ]; do
tcp|udp)
if [ $# -lt 3 ]; then
usage
elif [ $# -eq 3 ]; then
check_jail_validity
persist_rdr_rule $1 $2 $3
load_rdr_rule $1 $2 $3
shift 3
else
case "$4" in
log)
proto=$1
host_port=$2
jail_port=$3
shift 3
if [ $# -gt 3 ]; then
for last in $@; do
true
done
if [ $2 == "(" ] && [ $last == ")" ] ; then
check_jail_validity
persist_rdr_log_rule $proto $host_port $jail_port $@
load_rdr_log_rule $proto $host_port $jail_port $@
shift $#
else
usage
fi
elif [ $# -eq 1 ]; then
check_jail_validity
persist_rdr_log_rule $proto $host_port $jail_port $@
load_rdr_log_rule $proto $host_port $jail_port $@
shift 1
else
usage
fi
;;
*)
usage
;;
esac
fi
check_jail_validity
persist_rdr_rule $1 $2 $3
load_rdr_rule $1 $2 $3
shift 3
;;
*)
usage