vesta/bin/v-add-firewall-rule
2016-06-09 16:55:35 +03:00

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#!/bin/bash
# info: add firewall rule
# options: ACTION IP PORT [PROTOCOL] [COMMENT] [RULE]
#
# The function adds new rule to system firewall
#----------------------------------------------------------#
# Variable&Function #
#----------------------------------------------------------#
# Importing system variables
source /etc/profile
# Argument definition
action=$(echo $1|tr '[:lower:]' '[:upper:]')
ip=$2
port_ext=$3
protocol=${4-TCP}
protocol=$(echo $protocol|tr '[:lower:]' '[:upper:]')
comment=$5
rule=$6
# Includes
source $VESTA/func/main.sh
source $VESTA/conf/vesta.conf
# Get next firewall rule id
get_next_fw_rule() {
if [ -z "$rule" ]; then
curr_str=$(grep "RULE=" $VESTA/data/firewall/rules.conf |\
cut -f 2 -d \' | sort -n | tail -n1)
rule="$((curr_str +1))"
fi
}
sort_fw_rules() {
cat $VESTA/data/firewall/rules.conf |\
sort -n -k 2 -t \' > $VESTA/data/firewall/rules.conf.tmp
mv -f $VESTA/data/firewall/rules.conf.tmp \
$VESTA/data/firewall/rules.conf
}
#----------------------------------------------------------#
# Verifications #
#----------------------------------------------------------#
check_args '3' "$#" 'ACTION IP PORT [PROTOCOL] [COMMENT] [RULE]'
is_format_valid 'action' 'protocol' 'port_ext' 'ip'
is_system_enabled "$FIREWALL_SYSTEM" 'FIREWALL_SYSTEM'
get_next_fw_rule
is_format_valid 'rule'
is_object_new '../../data/firewall/rules' 'RULE' "$rule"
if [ ! -z "$comment" ]; then
is_format_valid 'comment'
fi
#----------------------------------------------------------#
# Action #
#----------------------------------------------------------#
# Generating timestamp
time_n_date=$(date +'%T %F')
time=$(echo "$time_n_date" |cut -f 1 -d \ )
date=$(echo "$time_n_date" |cut -f 2 -d \ )
# Concatenating rule
str="RULE='$rule' ACTION='$action' PROTOCOL='$protocol' PORT='$port_ext'"
str="$str IP='$ip' COMMENT='$comment' SUSPENDED='no'"
str="$str TIME='$time' DATE='$date'"
# Adding to config
echo "$str" >> $VESTA/data/firewall/rules.conf
# Changing permissions
chmod 660 $VESTA/data/firewall/rules.conf
# Sorting firewall rules by id number
sort_fw_rules
# Updating system firewall
$BIN/v-update-firewall
#----------------------------------------------------------#
# Vesta #
#----------------------------------------------------------#
# Logging
log_event "$OK" "$ARGUMENTS"
exit