646 lines
21 KiB
Bash
646 lines
21 KiB
Bash
##@cooked comments # -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
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## Outils pour les distributions debian
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##@cooked nocomments
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##@require base
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##@require sysinfos
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##@require service
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uprovide debian
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urequire base sysinfos service
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################################################################################
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# Gestion des packages
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function pkg_check() {
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# Vérifier que les packages sont installés sur le système
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local pkg status
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for pkg in "$@"; do
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status="$(LANG=C dpkg -s "$pkg" 2>/dev/null | grep '^Status:')" || return 1
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[[ "$status" == *not-installed* ]] && return 1
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[[ "$status" == *deinstall* ]] && return 1
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done
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return 0
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}
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function pkg_update() {
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# Mettre à jour la liste des packages silencieusement sans confirmation
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LANG=C apt-get update -qy
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}
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function pkg_upgrade() {
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# Mettre à jour la liste des packages silencieusement sans confirmation
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LANG=C apt-get upgrade -qy
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}
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function pkg_install() {
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# Installer les packages silencieusement et sans confirmation
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LANG=C apt-get install -qy "$@"
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}
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function pkg_installm() {
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# Installer les packages silencieusement et sans confirmation
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# Retourner 0 si au moins un des packages a été installé. Sinon, les
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# packages n'ont pas été installés, soit parce qu'ils sont déjà installé,
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# soit parce qu'il y a eu une erreur.
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if ! pkg_check "$@"; then
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# essayer d'installer les packages
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pkg_install "$@"
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else
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# aucun package n'a été installé
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return 1
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fi
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}
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################################################################################
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# Gestion des services
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function service_disable() {
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# Désactiver le service $1 pour qu'il ne se lance pas automatiquement au
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# démarrage
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update-rc.d -f "$1" remove
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}
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function service_enable() {
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# Activer le service $1 pour qu'il se lance automatiquement au démarrage
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update-rc.d "$1" defaults
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}
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################################################################################
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# Gestion des interfaces réseau
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function network_create_bridge() {
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# Modifier le fichier /etc/network/interfaces pour créer un nouveau pont
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# nommé $1 avec les paramètres $2. Si $2 est vide, sa valeur par défaut est
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# bridge_ports none
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# bridge_stp off
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# bridge_fd 2
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# bridge_maxwait 0
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# OPTIONS:
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# --static L'interface est statique plutôt que de recevoir son
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# adresse par DHCP
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# --auto Démarrer l'interface automatiquement
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# Une définition existante de l'interface n'est jamais écrasée.
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# Retourner vrai si la définition a été ajoutée dans /etc/network/interfaces
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local args method auto ifname lines
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method=dhcp
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parse_opts \
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--static method=static \
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--auto auto \
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@ args -- "$@" && set -- "${args[@]}" || {
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eerror "$args"
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return 1
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}
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ifname="${1:-br0}"
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array_from_lines lines "$2"
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lines="$(array_to_lines lines "" " ")"
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doinplacef /etc/network/interfaces awkrun ifname="$ifname" lines="$lines" method="$method" auto="$auto" '
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BEGIN {
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foundif = 0
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}
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$0 ~ "^iface " ifname " " { foundif = 1 }
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{ print }
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END {
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if (foundif) {
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exit 1
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} else {
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print ""
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if (auto != "") print "auto " ifname
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print "iface " ifname " inet " method
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if (lines != "") print lines
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exit 0
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}
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}'
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}
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__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS=
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function __network_backup() {
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local file="$1"
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local backup="$file.orig$(date +%Y%m%d)"
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[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
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}
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function __network_hostname() {
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local hostname="${1%%.*}"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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uecho "Setting /etc/hostname to $hostname"
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else
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__network_backup /etc/hostname
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echo "$hostname" >/etc/hostname
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fi
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}
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function __network_mailname() {
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local host="$1"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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uecho "Setting /etc/mailname to $host"
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else
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__network_backup /etc/mailname
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echo "$host" >/etc/mailname
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fi
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}
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function __network_fix_exim4() {
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local host="$1"
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local tmpfile; ac_set_tmpfile tmpfile
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</etc/exim4/update-exim4.conf.conf sed '/^dc_other_hostnames=/c\
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'"dc_other_hostnames='$host'" >"$tmpfile"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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if testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
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uecho "Setting /etc/exim4/update-exim4.conf.conf to:"
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cat "$tmpfile" | sed 's/^/ /g' 1>&2
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else
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uecho "/etc/exim4/update-exim4.conf.conf: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
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__network_backup /etc/exim4/update-exim4.conf.conf
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cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
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update-exim4.conf
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fi
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ac_clean "$tmpfile"
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}
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function __network_hosts() {
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local host="$1" hostname="${1%%.*}" ip="$2"
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local tmpfile; ac_set_tmpfile tmpfile
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</etc/hosts sed "/^127\\./s/$hostname\\(\\.[^ $TAB]*\\)\\?[ $TAB]*//g;
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/^127\\.[0-9]\\+\\.[0-9]\\+\\.[0-9]\\+[ $TAB]*\$/d" >"$tmpfile"
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local sip="${ip//./\\.}" shost="${host//./\\.}"
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if ! quietgrep "^$sip[ $TAB]\\+$shost[ $TAB]\\+$hostname" "$tmpfile"; then
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sed -i "/^$sip[ $TAB]/d" "$tmpfile"
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sed -i "1i\\
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$ip$TAB$host $hostname" "$tmpfile"
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fi
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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if testdiff "$tmpfile" /etc/hosts; then
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uecho "Setting /etc/hosts to:"
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cat "$tmpfile" | sed 's/^/ /g' 1>&2
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else
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uecho "/etc/hosts: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/hosts; then
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__network_backup /etc/hosts
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cat "$tmpfile" >/etc/hosts
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fi
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ac_clean "$tmpfile"
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}
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function __network_reset_interfaces() {
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local tmpfile; ac_set_tmpfile tmpfile
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echo >"$tmpfile" "\
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# This file describes the network interfaces available on your system
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# and how to activate them. For more information, see interfaces(5).
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# The loopback network interface
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auto lo
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iface lo inet loopback
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"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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if testdiff "$tmpfile" /etc/network/interfaces; then
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uecho "Setting /etc/network/interfaces to:"
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cat "$tmpfile" | sed 's/^/ /g' 1>&2
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else
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uecho "/etc/network/interfaces: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/network/interfaces; then
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__network_backup /etc/network/interfaces
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cat "$tmpfile" >/etc/network/interfaces
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fi
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ac_clean "$tmpfile"
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}
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function __network_parse_confip() {
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# confip --> iface [ipspecs@] [ipspecs]
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local __npc_tmp
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splitfsep2 "$1" : "${2:-iface}" __npc_tmp
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[ -n "$3" ] && array_split "$3" "$__npc_tmp" ,
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[ -n "$4" ] && set_var "$4" "$__npc_tmp"
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}
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function __network_parse_ipspec() {
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# ipspec --> ip mask gateway
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local __npi_tmp
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splitfsep "$1" / "${2:-ip}" __npi_tmp
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splitfsep "$__npi_tmp" + "${3:-mask}" "${4:-gateway}"
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}
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function __network_parse_confbr() {
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# confbr --> br [ifaces@] [ifaces]
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local __npc_tmp
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splitfsep "$1" : "${2:-br}" __npc_tmp
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[ -n "$3" ] && array_split "$3" "$__npc_tmp" ,
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[ -n "$4" ] && set_var "$4" "$__npc_tmp"
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}
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function __network_fix_confips() {
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# confips@
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local -a __nfc_confips __nfc_ipspecs __nfc_ifaces __nfc_ips
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local __nfc_confip __nfc_iface __nfc_ipspec __nfc_ip __nfc_mask __nfc_gateway
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array_copy __nfc_confips "${1:-confips}"
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# recenser les interfaces et créer les tableaux __IFACE_ipspecs
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for __nfc_confip in "${__nfc_confips[@]}"; do
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__network_parse_confip "$__nfc_confip" __nfc_iface __nfc_ipspecs
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array_addu __nfc_ifaces "$__nfc_iface"
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eval "local -a __nfc_${__nfc_iface}_ipspecs"
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done
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# puis constuire la liste des adresses IP associées à chaque interface
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for __nfc_confip in "${__nfc_confips[@]}"; do
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__network_parse_confip "$__nfc_confip" __nfc_iface __nfc_ipspecs
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for __nfc_ipspec in "${__nfc_ipspecs[@]}"; do
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__network_parse_ipspec "$__nfc_ipspec" __nfc_ip __nfc_mask __nfc_gateway
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if ! array_contains __nfc_ips "$__nfc_ip"; then
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eval "array_add __nfc_${__nfc_iface}_ipspecs \"$__nfc_ipspec\""
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array_add __nfc_ips "$__nfc_ip"
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fi
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done
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done
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# puis construire le tableau final
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array_new __nfc_confips
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for __nfc_iface in "${__nfc_ifaces[@]}"; do
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array_add __nfc_confips "$__nfc_iface:$(array_join "__nfc_${__nfc_iface}_ipspecs" ,)"
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done
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array_copy "${1:-confips}" __nfc_confips
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}
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function __network_fix_confbrs() {
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# confbrs@
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local -a __nfc_confbrs __nfc_ifaces __nfc_brs __nfc_ips
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local __nfc_confbr __nfc_br __nfc_iface __nfc_ip __nfc_mask __nfc_gateway
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array_copy __nfc_confbrs "${1:-confbrs}"
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# recenser les bridges et créer les tableaux __BR_ifaces
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for __nfc_confbr in "${__nfc_confbrs[@]}"; do
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__network_parse_confbr "$__nfc_confbr" __nfc_br __nfc_ifaces
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array_addu __nfc_brs "$__nfc_br"
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eval "local -a __nfc_${__nfc_br}_ifaces"
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done
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# puis constuire la liste des interfaces associées à chaque bridge
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for __nfc_confbr in "${__nfc_confbrs[@]}"; do
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__network_parse_confbr "$__nfc_confbr" __nfc_br __nfc_ifaces
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array_extendu "__nfc_${__nfc_br}_ifaces" __nfc_ifaces
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done
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# puis construire le tableau final
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array_new __nfc_confbrs
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for __nfc_br in "${__nfc_brs[@]}"; do
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array_add __nfc_confbrs "$__nfc_br:$(array_join "__nfc_${__nfc_br}_ifaces" ,)"
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done
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array_copy "${1:-confbrs}" __nfc_confbrs
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}
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function __network_resolve_mainiface() {
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local __nrm_mainiface="${1:-mainiface}" __nrm_mainconfbr="$2" __nrm_mainconfip="$3"
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[ -n "${!__nrm_mainiface}" ] || __network_parse_confbr "$__nrm_mainconfbr" "$__nrm_mainiface"
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[ -n "${!__nrm_mainiface}" ] || __network_parse_confip "$__nrm_mainconfip" "$__nrm_mainiface"
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[ -n "${!__nrm_mainiface}" ] || set_var "$__nrm_mainiface" eth0
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}
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function __network_set_mainip() {
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# XXX modifier pour en faire set_confips, qui initialise confips en fonction
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# des adresses actuelles, principale et supplémentaire
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eval "$(ip addr show dev "$1" | awk "BEGIN {
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mainipvar = \"${2:-mainip}\"
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netmaskvar = \"${3:-netmask}\"
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broadcastvar = \"${4:-broadcast}\"
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"'
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print mainipvar "="
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print netmaskvar "="
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print broadcastvar "="
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}
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$1 == "inet" {
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mainip = ""; netmask = ""; broadcast = ""
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if (match($0, "inet ([^ ]*)/([^ ]*) ", vs) != 0) {
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mainip = vs[1]
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netmask = vs[2]
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}
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if (match($0, "brd ([^ ]*) ", vs) != 0) {
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broadcast = vs[1]
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}
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print mainipvar "=\"" mainip "\""
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print netmaskvar "=\"" netmask "\""
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print broadcastvar "=\"" broadcast "\""
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exit 0
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}')"
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}
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function __network_set_gateway() {
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eval "$(route -n | awk "BEGIN {
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iface = \"$1\"
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gatewayvar = \"${2:-gateway}\"
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"'
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print gatewayvar "="
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}
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$1 == "0.0.0.0" && $8 == iface {
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print gatewayvar "=\"" $2 "\""
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}')"
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}
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#BUG"
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function __network_update_bridge() {
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# vérifier la configuration (interfaces de ifaces[@] en manual, présence du
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# bridge, bridge en auto, adresse ip principale statique ou en dhcp,
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# adresses ip supplémentaires), puis si nécessaire, supprimer l'ancienne
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# configuration et créer la nouvelle.
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local inf="$1"; shift
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local outf="$1"; shift
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awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" ifaces[@]="${3:-ifaces}" '
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{ print }
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'
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}
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function __network_update_iface() {
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# vérifier la configuration (présence de l'interface, interface en auto,
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# adresse ip principale statique ou en dhcp, adresses ip supplémentaires),
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# puis si nécessaire, supprimer l'ancienne configuration et créer la
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# nouvelle.
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local inf="$1"; shift
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local outf="$1"; shift
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local IPSPECS_SCRIPT='
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method = "dhcp"
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ips_count = ipspecs_count
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array_new(ips)
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array_new(masks)
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array_new(gateways)
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array_new(have_ups)
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array_new(have_downs)
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for (i = 1; i <= ips_count; i++) {
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if (match(ipspecs[i], "^(.*)(/(.*))?(\\+(.*))?$", vs) != 0) {
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ip = vs[1]
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mask = vs[3]
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gateway = vs[5]
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} else {
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ip = ""
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mask = ""
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gateway = ""
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}
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if (i == 1) {
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if (ip == "dhcp") method = "dhcp"
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else method = "static"
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}
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if (mask == "") mask = "255.255.255.0"
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ips[i] = ip
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#masks[i] = mask
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#gateways[i] = gateway
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have_ups[i] = 0
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have_downs[i] = 0
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}
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'
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awkrun <"$inf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
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BEGIN {
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have_hotplug = 0
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have_auto = 0
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have_iface = 0
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have_method = 0 # static ou dhcp
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in_iface = 0
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have_mainip = 0
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'"$IPSPECS_SCRIPT"'
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}
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function indexof_ip(ip, i) {
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for (i = 1; i = ips_count; i++) {
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if (ips[i] == ip) {
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return i
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}
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}
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return 0
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}
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($0 " ") ~ ("^allow-hotplug.* " iface " ") { have_hotplug = 1; next }
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($0 " ") ~ ("^(allow-)?auto.* " iface " ") { have_auto = 1; next }
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$0 ~ ("^iface " iface " inet ") {
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have_iface = 1
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if (($0 " ") ~ (" " method " ")) have_method = 1
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in_iface = 1
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next
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}
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$0 ~ ("^iface ") { in_inface = 0; next; }
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in_iface && $0 ~ "^[ ]*address " mainip { have_mainip = 1 }
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in_iface && $0 ~ "^[ ]*up (/sbin/)?ip addr add " {
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if (match($0, "ip addr add (.*)/.* dev " iface, vs) != 0) {
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i = indexof_ip(vs[1])
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if (i != 0) have_ups[i] = 1
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}
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next
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}
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in_iface && $0 ~ "^[ ]*down (/sbin/)?ip addr del " {
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if (match($0, "ip addr del (.*)/.* dev " iface, vs) != 0) {
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i = indexof_ip(vs[1])
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if (i != 0) have_downs[i] = 1
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}
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next
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}
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END {
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check_hotplug = !have_hotplug
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check_auto = have_auto
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check_iface = have_iface && have_method && have_mainip
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check_supplips = 1
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for (i = 1; i <= ipspecs_count; i++) {
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if (!have_ups[i] || !have_downs[i]) {
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check_supplips = 0
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break
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}
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}
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if (!check_hotplug || !check_auto || !check_iface || !check_supplips) {
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exit 1 # il faut refaire la configuration
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}
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exit 0 # tout est ok
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}
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' && return 1
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# il faut refaire la configuration
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awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
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{ print }
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'
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return 0
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}
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function network_config() {
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# (Re)configurer le réseau sur l'hôte courant.
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# $1 (host) est le nom d'hôte. $2 (confips) est le nom d'un tableau
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# contenant la configuration des adresses ips pour les interfaces. $3
|
|
# (confbrs) est le nom d'un tableau contenant la configuration des bridges à
|
|
# créer/mettre à jour. $4 (mainiface) est le nom de l'interface
|
|
# principale. En principe, l'interface principale est le premier bridge
|
|
# défini ou la première interface définie.
|
|
# Si un des arguments n'est pas spécifié, il est ignoré.
|
|
# Le tableau confips doit contenir des définitions d'une des formes
|
|
# suivantes:
|
|
# [iface:]address[/mask][+gateway],...
|
|
# [iface:]dhcp
|
|
# La deuxième forme est pour spécifier qu'une interface est configurée par
|
|
# DHCP. iface vaut par défaut eth0, sauf si une définition de bridge
|
|
# existe, auquel cas il s'agit du premier bridge défini. Pour chaque
|
|
# interface, seule la première spécification d'adresse IP tient compte de
|
|
# l'argument gateway. Les autres spécifications définissent des adresses IP
|
|
# supplémentaires pour l'interface.
|
|
# Le tableau brs doit contenir des définitions de la forme suivante:
|
|
# br:ifaces,...
|
|
# br est le nom du bridge, e.g. br0. ifaces est une liste d'interfaces
|
|
# séparées par une virgule. e.g. br0:eth0,eth1
|
|
# Bien que ce soit techniquement possible, ce script interdit que l'on
|
|
# définisse une adresse IP pour une interface faisant partie d'un bridge.
|
|
urequire ipcalc conf
|
|
|
|
local -a __nc_confips __nc_confbrs
|
|
[ -n "$2" ] && array_copy __nc_confips "$2"
|
|
[ -n "$3" ] && array_copy __nc_confbrs "$3"
|
|
|
|
local host="$1" mainiface="$4"
|
|
local -a confips confbrs
|
|
array_copy confips __nc_confips
|
|
array_copy confbrs __nc_confbrs
|
|
|
|
__network_fix_confips confips
|
|
__network_fix_confbrs confbrs
|
|
|
|
local mainbr # bridge principal
|
|
local mainip # adresse IP principale de l'interface principale
|
|
local confbr confip br iface mask gateway
|
|
local -a ipspecs
|
|
|
|
__network_resolve_mainiface mainiface "${confbrs[0]}" "${confips[0]}"
|
|
__network_parse_confbr "${confbrs[0]}" mainbr
|
|
[ -n "$mainbr" ] || mainbr=br0
|
|
|
|
if [ -n "${confips[*]}" -o -n "${confbrs[*]}" ]; then
|
|
# Vérifier qu'une interface avec une adresse IP ne figure pas dans les
|
|
# bridges à configurer. en profiter pour classer les interfaces par
|
|
# type: standard et bridges
|
|
etitle "Configuration des interfaces réseau"
|
|
|
|
local -a ifaces_with_ips ifaces
|
|
local -a brifaces
|
|
ifaces_with_ips=()
|
|
for confip in "${confips[@]}"; do
|
|
__network_parse_confip "$confip" iface
|
|
array_addu ifaces_with_ips "$iface"
|
|
done
|
|
for confbr in "${confbrs[@]}"; do
|
|
__network_parse_confbr "$confbr" br ifaces
|
|
array_add brifaces "$br"
|
|
for iface in "${ifaces[@]}"; do
|
|
if array_contains ifaces_with_ips "$iface"; then
|
|
eerror "$iface: Impossible de configurer une interface dans un bridge ET avec une adresse IP"
|
|
return 1
|
|
fi
|
|
done
|
|
done
|
|
local -a confstdips confbrips
|
|
for confip in "${confips[@]}"; do
|
|
__network_parse_confip "$confip" iface
|
|
if array_contains brifaces "$iface"; then
|
|
array_add confbrips "$confip"
|
|
else
|
|
array_add confstdips "$confip"
|
|
fi
|
|
done
|
|
|
|
# maintenant, configurer /etc/network/interfaces: faire une copie de travail
|
|
local interfaces workfile
|
|
ac_set_tmpfile interfaces
|
|
ac_set_tmpfile workfile
|
|
cat /etc/network/interfaces >"$interfaces"
|
|
|
|
# configurer chaque bridge
|
|
local -a tmpifaces
|
|
local tmpbr
|
|
for confip in "${confbrips[@]}"; do
|
|
__network_parse_confip "$confip" br ipspecs
|
|
[ -n "$br" ] || br="$mainbr"
|
|
|
|
if [ -z "$mainip" -a "$br" == "$mainiface" ]; then
|
|
__network_parse_ipspec "${ipspecs[0]}" mainip mask gateway
|
|
fi
|
|
|
|
ifaces=()
|
|
for confbr in "${confbrs[@]}"; do
|
|
__network_parse_confbr "$confbr" tmpbr tmpifaces
|
|
if [ "$tmpbr" == "$br" ]; then
|
|
array_copy ifaces "$tmpifaces"
|
|
break
|
|
fi
|
|
done
|
|
|
|
if __network_update_bridge "$interfaces" "$workfile" "$br" ipspecs ifaces; then
|
|
cat "$workfile" >"$interfaces"
|
|
fi
|
|
done
|
|
|
|
# configurer chaque interface classique
|
|
for confip in "${confstdips[@]}"; do
|
|
__network_parse_confip "$confip" iface ipspecs
|
|
[ -n "$iface" ] || iface="$mainiface"
|
|
|
|
if [ -z "$mainip" -a "$iface" == "$mainiface" ]; then
|
|
__network_parse_ipspec "${ipspecs[0]}" mainip mask gateway
|
|
fi
|
|
|
|
if __network_update_iface "$interfaces" "$workfile" "$iface" ipspecs; then
|
|
cat "$workfile" >"$interfaces"
|
|
fi
|
|
done
|
|
|
|
# Fin de traitement
|
|
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
|
|
if testdiff "$interfaces" /etc/network/interfaces; then
|
|
uecho "Setting /etc/network/interfaces to:"
|
|
cat "$interfaces" | sed 's/^/ /g' 1>&2
|
|
else
|
|
uecho "/etc/network/interfaces: pas de modifications"
|
|
fi
|
|
elif testdiff "$interfaces" /etc/network/interfaces; then
|
|
__network_backup /etc/network/interfaces
|
|
cat "$interfaces" >/etc/network/interfaces
|
|
fi
|
|
ac_clean "$interfaces" "$workfile"
|
|
|
|
eend
|
|
fi
|
|
|
|
# configurer le nom d'hôte
|
|
if [ -n "$host" ]; then
|
|
host="$(ipcalc_fqdn_maybe "$host")"
|
|
etitle "Configuration du nom d'hôte: $host"
|
|
|
|
# si on ne spécifie pas l'adresse ip principale, la résoudre ici. ceci
|
|
# est nécessaire pour mettre à jour /etc/hosts
|
|
if [ "$mainip" == dhcp ]; then
|
|
# si l'adresse obtenue est en DHCP, ne pas mettre à jour /etc/hosts
|
|
mainip=
|
|
elif [ -z "$mainip" ]; then
|
|
local -a mainips
|
|
resolv_ips mainips "$host"
|
|
[ -n "${mainips[*]}" ] || {
|
|
eerror "$host: Impossible de résoudre ce nom d'hôte"
|
|
return 1
|
|
}
|
|
mainip="${mainips[0]}"
|
|
fi
|
|
|
|
estep "/etc/hostname"
|
|
__network_hostname "$host"
|
|
estep "/etc/mailname"
|
|
__network_mailname "$host"
|
|
if [ -f "/etc/exim4/update-exim4.conf.conf" ]; then
|
|
estep "/etc/exim4/update-exim4.conf.conf"
|
|
__network_fix_exim4 "$host"
|
|
fi
|
|
# XXX tester la présence de postfix, et si nécessaire, modifier la
|
|
# configuration
|
|
if [ -n "$mainip" ]; then
|
|
estep "/etc/hosts"
|
|
__network_hosts "$host" "$mainip"
|
|
fi
|
|
|
|
eend
|
|
fi
|
|
|
|
return 0
|
|
}
|