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ublinux-init/ublinux/rc.preinit.d/30-network-hostname

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#!/usr/bin/env bash
#
# Initial script for UBLinux
# This script are launching before starting init from initrd script
# Current dir allways must be set to root (/)
# All system path must be relative, except initrd dirs
ENABLED=yes
[[ ${ENABLED} == "yes" ]] || exit 0
DEBUGMODE=no
PATH=.:/:/usr/bin:/usr/local/bin:/usr/local/sbin
unset ROOTFS; [[ -d /usr/lib/ublinux ]] || ROOTFS=.
SOURCE=${ROOTFS}/usr/lib/ublinux/functions; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
SOURCE=${ROOTFS}/usr/lib/ublinux/default; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null || exit 0
debug_mode "$0" "$@"
SYSCONF="${ROOTFS}${SYSCONF}"
SOURCE=${SYSCONF}/config; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
SOURCE=${SYSCONF}/system; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
SOURCE=${SYSCONF}/network; [[ -f ${SOURCE} ]] && . ${SOURCE} 2>/dev/null
exec_hostname(){
local PARAM="$@"
[[ -n ${PARAM} ]] && eval "${PARAM%%=*}='${PARAM#*=}'"
SET_HOSTNAME="${HOSTNAME}"
[[ -z ${SET_HOSTNAME} ]] && SET_HOSTNAME=ublinux-live
# Удалить предыдущее имя хоста
OLD_HOSTNAME=$(tail -1 ${ROOTFS}/etc/hostname); OLD_HOSTNAME=${OLD_HOSTNAME%%.*}
sed -E -e "s/\s${OLD_HOSTNAME}(\s|$)/ /g" -e "s/\s${OLD_HOSTNAME}\.[-0-9a-zA-Z.]*(\s|$)/ /g" -e "/^\s*[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\s*$/d" -i ${ROOTFS}/etc/hosts
# Если нет новой строки, то вставить
tail -c1 -- ${ROOTFS}/etc/hosts | grep -qx $'\n' || echo >> ${ROOTFS}/etc/hosts
HOSTS_1="127.0.0.1 sb-ssl.l.google.com safebrowsing.clients.google.com safebrowsing.cache.l.google.com"
grep -q "^\s*${HOSTS_1}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_1}" >> ${ROOTFS}/etc/hosts
HOSTS_2="127.0.0.1 ${SET_HOSTNAME%%.*}"
grep -q "^\s*${HOSTS_2}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_2}" >> ${ROOTFS}/etc/hosts
[[ ${SET_HOSTNAME} != ${SET_HOSTNAME#*.} ]] && DOMAIN="${SET_HOSTNAME#*.}"
if [[ ${DOMAIN} != "" ]]; then
SET_HOSTNAME="${SET_HOSTNAME%%.*}.${DOMAIN}"
echo "${SET_HOSTNAME}" > ${ROOTFS}/etc/hostname
HOSTS_3="127.0.0.1 ${SET_HOSTNAME}"
grep -q "^\s*${HOSTS_3}\s*$" ${ROOTFS}/etc/hosts || echo "${HOSTS_3}" >> ${ROOTFS}/etc/hosts
## Указать доменных пользователей AccountsService, что-бы были видны для выбора логина в DM
ls -d ${ROOTFS}/home/*@*/ 2>/dev/null | xargs -ri basename {} | xargs -ri touch ${ROOTFS}/var/lib/AccountsService/users/{}
## Домен для сервера dhcpd
if [[ -f ${ROOTFS}/etc/dhcpd.conf ]]; then
sed s/"option domain-name .*"/"option domain-name \"${DOMAIN}\";"/g -i ${ROOTFS}/etc/dhcpd.conf
sed s/"option nis-domain .*"/"option nis-domain \"${DOMAIN}\";"/g -i ${ROOTFS}/etc/dhcpd.conf
fi
## Имя хоста записать в конфиг с постфиксом домена
[[ -f ${ROOTFS}/etc/ublinux/system ]] && { grep -q "^\s*HOSTNAME=${SET_HOSTNAME}\s*$" ${ROOTFS}/etc/ublinux/system || sed "s/^\s*HOSTNAME=.*/HOSTNAME=${SET_HOSTNAME}/g" -i ${ROOTFS}/etc/ublinux/system; }
else
echo "${SET_HOSTNAME}" > ${ROOTFS}/etc/hostname
fi
}
exec_hostname_live(){
# Если выполнение в initrd, то выход
[[ -z ${ROOTFS} ]] || return 0
local PARAM="$@"
[[ -n ${PARAM} ]] && eval "${PARAM%%=*}='${PARAM#*=}'"
SET_HOSTNAME="${HOSTNAME}"
[[ -z ${SET_HOSTNAME} ]] && SET_HOSTNAME=ublinux-live
[[ ${DOMAIN} != "" ]] && SET_HOSTNAME="${SET_HOSTNAME%%.*}.${DOMAIN}"
hostnamectl set-hostname ${SET_HOSTNAME}
## Если меняется имя хоста в запущенных X, то новое имя добавляем в xauth
who | grep "(:[0-9.]*)$" | cut -d' ' -f1 | xargs -ri su {} -c "xauth list | sed 's|^.*/|su {} -c \\\\\"xauth add ${SET_HOSTNAME}/|;s|$|\\\\\"|'" | xargs -ri sh -c '{}'
# Если указан домен, то задаём переменную DOMAIN=
# Примечание: Имя сервера контроллера домена включает постфикс домена, но в домен не входит
#[[ ${SET_HOSTNAME} != ${SET_HOSTNAME#*.} ]] && DOMAIN="${SET_HOSTNAME#*.}"
#[[ ${DOMAIN} != "" ]] && ubconfig -q set network DOMAIN="${DOMAIN}"
}
################
##### MAIN #####
################
if [[ -z $@ || $1 == set ]]; then
shift
KERNEL_HOSTNAME=$(cmdline_value hostname)
[[ ${KERNEL_HOSTNAME} == "" ]] || HOSTNAME=${KERNEL_HOSTNAME}
exec_hostname $@
exec_hostname_live $@
elif [[ $1 == remove ]]; then
shift
exec_hostname $@
exec_hostname_live $@
fi