- bind_set_new_serial.sh, bind_set_renew_tlsa.sh: redesign code, add configuration file support

- Add 'script bind_rndc_sync_clean.sh'.
- bind_get_domain_by_hostname.sh: minor changes at code order.
- Adjust sample configuration file 'bind.conf.sample'.
This commit is contained in:
2017-08-03 23:39:28 +02:00
parent 3b0b759850
commit 5057d983bf
5 changed files with 817 additions and 142 deletions

View File

@@ -1,6 +1,6 @@
#!/usr/bin/env bash
# - Replaces a TLSA Record
# -
# - Adds/Replaces a TLSA Record
# -
# - Return (Exit) Codes:
# - success:
@@ -15,67 +15,140 @@
# 21: Adding Record failed
# - 99: Fatal error
# -
# - example:
# - ./replace_dns_tlsa.sh _25._tcp.mail.initiativenserver.de. IN TLSA 3 1 1 aab3a46b387dd543ed8d...
# - Example:
# - bind_set_renew_tlsa.sh _25._tcp.mail.initiativenserver.de. IN TLSA 3 1 1 aab3a46b387dd543ed8d...
## -- Variable definitions
## --
#---------------------------------------
#-----------------------------
# Setting Defaults
#-----------------------------
#---------------------------------------
# - Bind configuration file containing zone definitions
# -
ZONE_CONF_FILE=/etc/bind/named.conf.local
BIND_USER=bind
BIND_GROUP=bind
## --
## -- End: Variable definitions
DEFAULT_CONF_FILE_DIR="/etc/bind"
DEFAULT_BIND_USER="bind"
DEFAULT_BIND_GROUP="bind"
## ***
## *** Don't make changes after this line ***
## ***
#***************************************
#-----------------------------
# Don't make changes after this
#-----------------------------
#***************************************
## --- some functions
## ---
working_dir="$(dirname $(realpath $0))"
conf_file="${working_dir}/conf/bind.conf"
log_file="$(mktemp)"
#---------------------------------------
#-----------------------------
# Base Function(s)
#-----------------------------
#---------------------------------------
usage() {
echo
[ -n "$1" ] && echo -e "Error: $1\n"
cat<<EOF
Usage: $(basename $0) <Full-Bind-TLSA-Record> | <check>
Script adds a new or updates an existing TLSA Record
Parameter "check" can be used, to test whether this script is accessable (e.g. from a
further script on a remote host). Nothing will be done, scripts returns '0'.
Return (Exit) Codes:
success:
0: TLSA record is up to date
1: TLSA record replaced
2: New TLSA record written
error:
10: Invalid TLSA record given
11: No zonefile for TLSA record found
15: Hostname/Domain not supported
20: Replacing record failed
21: Adding Record failed
99: Fatal error
Options:
-h
Prints this help.
-q
Rund in silent mode.
Example:
$(basename $0) _25._tcp.mail.initiativenserver.de. IN TLSA 3 1 1 aab3a46b387dd543ed8d...
EOF
clean_up 1
}
clean_up() {
# Perform program exit housekeeping
rm $log_file
exit $1
}
echononl(){
echo X\\c > /tmp/shprompt$$
if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
echo -e -n "$*\\c" 1>&2
else
echo -e -n "$*" 1>&2
if $verbose ; then
echo X\\c > /tmp/shprompt$$
if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
echo -e -n "$*\\c" 1>&2
else
echo -e -n "$*" 1>&2
fi
rm /tmp/shprompt$$
fi
rm /tmp/shprompt$$
}
warn (){
echo ""
echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
echo ""
if $verbose ; then
echo ""
echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*"
echo ""
fi
}
info (){
echo ""
echo -e "\t[ \033[33m\033[1mInfo\033[m ]: $*"
echo ""
if $verbose ; then
echo ""
echo -e "\t[ \033[33m\033[1mInfo\033[m ]: $*"
echo ""
fi
}
error(){
echo ""
echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
echo ""
if $verbose ; then
echo ""
echo -e "\t[ \033[31m\033[1mFehler\033[m ]: $*"
echo ""
fi
}
echo_ok() {
echo -e "\033[75G[ \033[32mok\033[m ]"
if $verbose ; then
echo -e "\033[75G[ \033[32mok\033[m ]"
fi
}
echo_failed(){
echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
if $verbose ; then
echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
fi
}
echo_skipped() {
echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
if $verbose ; then
echo -e "\033[75G[ \033[33m\033[1mskipped\033[m ]"
fi
}
backup_dir () {
@@ -87,29 +160,101 @@ backup_dir () {
echo_ok
else
echo_failed
echo ""
exit 99
error "Backup directory \"$dir_to_backup\" failed!"
clean_up 99
fi
else
echo_failed
error "Directory \"$dir_to_backup\" not found. No Backup written!"
exit 99
clean_up 99
fi
}
## ---
## --- END: functions
trap clean_up SIGHUP SIGINT SIGTERM
# - Test whether stdout (file descriptor 1) is a terminal or not (e.g. cron
# - or if you pipe the output to some other program)
#
if [[ -t 1 ]] ; then
verbose=true
else
verbose=false
fi
while getopts hq opt ; do
case $opt in
q) verbose=false
;;
h) usage
;;
*)
;;
esac
done
shift $(expr $OPTIND - 1)
#if [[ $# -ne 1 ]] ; then
# if $verbose ; then
# usage "wrong number of arguments"
# else
# clean_up 99
# fi
#fi
# - Parameter "check" can be used, to test whether this script
# - is accessable (e.g. from a script on a remote host)
# -
if [[ "$1" = "check" ]]; then
echo "\$1: $1"
exit 0
info "Script \033[1m$(basename $0)\033[m was successfully invoked, but its only a test."
clean_up 0
fi
#---------------------------------------
#-----------------------------
# Load default values from bind.conf
#
# Overwrites the settings above
#
#-----------------------------
#---------------------------------------
if $verbose ; then
clear
echo ""
echo -e "\033[32mRunning script \033[1m"$(basename $0)"\033[m .."
echo ""
fi
info "Given TLSA Record: \n\t\033[1m$@\033[m"
echononl "\t Loading default Configuration values from $(basename ${conf_file}).."
if [[ ! -f "$conf_file" ]]; then
echo_skipped
else
source "${conf_file}" > $log_file 2>&1
if [[ $? -eq 0 ]]; then
echo_ok
else
echo_failed
fatal "$(cat $log_file)"
fi
fi
[[ -n "$CONF_FILE_DIR" ]] || CONF_FILE_DIR="$DEFAULT_CONF_FILE_DIR"
[[ -n "$ZONES_DECLARATION_FILE" ]] || ZONES_DECLARATION_FILE="${CONF_FILE_DIR}/named.conf.local"
[[ -n "$BIND_USER" ]] || BIND_USER="$DEFAULT_BIND_USER"
[[ -n "$BIND_GROUP" ]] || BIND_GROUP="$DEFAULT_BIND_GROUP"
$verbose && echo ""
# - Split given Record into an array
# -
declare -a record_arr=($@);
@@ -130,7 +275,7 @@ elif [[ ${#record_arr[@]} -eq 8 ]]; then
else
error "Invalid TLSA record given!"
exit 10
clean_up 10
fi
@@ -160,7 +305,7 @@ done
_failed=false
_hostname=$hostname
_tmp_hostname=$(echo ${_hostname//\./\\.})
while ! grep -e "$_tmp_hostname" $ZONE_CONF_FILE > /dev/null 2>&1 ; do
while ! grep -e "$_tmp_hostname" $ZONES_DECLARATION_FILE > /dev/null 2>&1 ; do
_hostname=${_hostname#*.}
_tmp_hostname=$(echo ${_hostname//\./\\.})
if [[ ! $_tmp_hostname =~ \. ]]; then
@@ -203,14 +348,14 @@ while IFS='' read -r line || [[ -n "$line" ]] ; do
break
fi
fi
done < $ZONE_CONF_FILE
done < $ZONES_DECLARATION_FILE
if [[ $number -eq 0 ]] ; then
error "No Zonefile (master) found for domain \"$domain\" ."
exit 11
clean_up 11
fi
zone_file_dir=`dirname $zone_file`
zone_file_dir="$(dirname $zone_file)"
# - Backup existing zone file directory
# -
@@ -226,8 +371,7 @@ if grep -E "^$record_name.+$record_type" $zone_file > /dev/null 2>&1 ; then
fi
if grep -E "$search_string" $zone_file | grep $record_hash > /dev/null 2>&1 ; then
info "TLSA record is already up to date.."
echo ""
exit 0
clean_up 0
else
_replac_string=${record_arr[@]}
# - Backup Zone directory
@@ -238,16 +382,16 @@ if grep -E "^$record_name.+$record_type" $zone_file > /dev/null 2>&1 ; then
perl -i -n -p -e "s#^${record_name}.+${record_type}.*#$_replac_string#" $zone_file
if [[ $? -eq 0 ]] ; then
echo_ok
echo ""
exit 1
$verbose && echo ""
clean_up 1
else
echo_failed
echo ""
error "Replacing TLSA Record failed!"
exit 20
fi
fi
else
warn "No Record for replacing fount in zonefile \"`basename $zone_file`\"!"
warn "No Record for replacing fount in zonefile \"$(basename $zone_file)\"!"
declare -i _count
@@ -277,7 +421,7 @@ else
_count=`grep -Eo "$search_string" $zone_file | wc -l`
if [[ $_count -eq 0 ]]; then
error "No place for adding a new TLSA record found. Check manually!"
exit 99
clean_up 99
fi
fi
fi
@@ -332,7 +476,8 @@ else
echo_ok
else
echo_failed
exit 99
error "Setting ownership for '$zone_file' failed!"
clean_up 99
fi
echononl "\tCorrect permissions on $zone_file .."
chmod 644 $zone_file
@@ -340,12 +485,13 @@ else
echo_ok
else
echo_failed
exit 99
error "Correct permissions on '$zone_file' failed!"
clean_up 99
fi
echo ""
exit 2
$verbose && echo ""
clean_up 2
fi
echo
exit 99
$verbose && echo ""
clean_up 99