nutools/ulib/debian

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##@cooked comments # -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
## Outils pour les distributions debian
##@cooked nocomments
##@require base
##@require sysinfos
##@require service
uprovide debian
urequire base sysinfos service
################################################################################
# Gestion des packages
function pkg_check() {
# Vérifier que les packages sont installés sur le système
local pkg status
for pkg in "$@"; do
status="$(LANG=C dpkg -s "$pkg" 2>/dev/null | grep '^Status:')" || return 1
[[ "$status" == *not-installed* ]] && return 1
[[ "$status" == *deinstall* ]] && return 1
done
return 0
}
function pkg_update() {
# Mettre à jour la liste des packages silencieusement sans confirmation
LANG=C apt-get update -qy
}
function pkg_upgrade() {
# Mettre à jour la liste des packages silencieusement sans confirmation
LANG=C apt-get upgrade -qy
}
function pkg_install() {
# Installer les packages silencieusement et sans confirmation
LANG=C apt-get install -qy "$@"
}
function pkg_installm() {
# Installer les packages silencieusement et sans confirmation
# Retourner 0 si au moins un des packages a été installé. Sinon, les
# packages n'ont pas été installés, soit parce qu'ils sont déjà installé,
# soit parce qu'il y a eu une erreur.
if ! pkg_check "$@"; then
# essayer d'installer les packages
pkg_install "$@"
else
# aucun package n'a été installé
return 1
fi
}
################################################################################
# Gestion des services
function service_disable() {
# Désactiver le service $1 pour qu'il ne se lance pas automatiquement au
# démarrage
update-rc.d -f "$1" remove
}
function service_enable() {
# Activer le service $1 pour qu'il se lance automatiquement au démarrage
update-rc.d "$1" defaults
}
################################################################################
# Gestion des interfaces réseau
function network_create_bridge() {
# Modifier le fichier /etc/network/interfaces pour créer un nouveau pont
# nommé $1 avec les paramètres $2. Si $2 est vide, sa valeur par défaut est
# bridge_ports none
# bridge_stp off
# bridge_fd 2
# bridge_maxwait 0
# OPTIONS:
# --static L'interface est statique plutôt que de recevoir son
# adresse par DHCP
# --auto Démarrer l'interface automatiquement
# Une définition existante de l'interface n'est jamais écrasée.
# Retourner vrai si la définition a été ajoutée dans /etc/network/interfaces
local args method auto ifname lines
method=dhcp
parse_opts \
--static method=static \
--auto auto \
@ args -- "$@" && set -- "${args[@]}" || {
eerror "$args"
return 1
}
ifname="${1:-br0}"
array_from_lines lines "$2"
lines="$(array_to_lines lines "" " ")"
doinplacef /etc/network/interfaces awkrun ifname="$ifname" lines="$lines" method="$method" auto="$auto" '
BEGIN {
foundif = 0
}
$0 ~ "^iface " ifname " " { foundif = 1 }
{ print }
END {
if (foundif) {
exit 1
} else {
print ""
if (auto != "") print "auto " ifname
print "iface " ifname " inet " method
if (lines != "") print lines
exit 0
}
}'
}
__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS=
function __network_parse_confbr() {
local br; local -a ifaces
splitpair "$1" br ifaces
array_split ifaces "$ifaces" ,
__npc_br="$br"
array_copy __npc_ifaces ifaces
}
function network_parse_confbr() {
# network_parse_confbr "$confbr" br ifaces
local __npc_br; local -a __npc_ifaces
__network_parse_confbr "$1"
set_var "${2:-br}" "$__npc_br"
array_copy "${3:-ifaces}" __npc_ifaces
}
function network_format_confbr() {
# network_format_confbr "$br" ifaces --> "br:ifaces"
echo "$1:$(array_join "${2:-ifaces}" ,)"
}
function __network_parse_confip() {
local tmpig iface gateway; local -a ipsuffixes
splitfsep2 "$1" : tmpig ipsuffixes
splitfsep "$tmpig" // iface gateway
array_split ipsuffixes "$ipsuffixes" ,
__npc_iface="$iface"
__npc_gateway="$gateway"
array_copy __npc_ipsuffixes ipsuffixes
}
function network_parse_confip() {
# network_parse_confip "$confip" iface gateway ipsuffixes
local __npc_iface __npc_gateway; local -a __npc_ipsuffixes
__network_parse_confip "$1"
set_var "${2:-iface}" "$__npc_iface"
set_var "${3:-gateway}" "$__npc_gateway"
array_copy "${4:-ipsuffixes}" __npc_ipsuffixes
}
function network_parse_ipsuffix() {
# network_parse_ipsuffix "$ipsuffix" ip suffix
splitfsep "$1" / "${2:-ip}" "${3:-suffix}"
}
function network_format_confip() {
# network_format_confip "$iface" "$gateway" ipsuffixes --> "iface//gateway:ipsuffixes"
local tmpig="$1${2:+//$2}"
echo "${tmpig:+$tmpig:}$(array_join "${3:-ipsuffixes}" ,)"
}
function network_format_ipsuffix() {
# network_format_ipsuffix "$ip" "$suffix" --> "ip:suffix"
if [ "${1,,}" == "dhcp" ]; then
echo "${1,,}"
else
echo "$1${2:+/$2}"
fi
}
function __network_fix_confbrs() {
local -a confbrs ifaces brs ips
local confbr br iface
# recenser les bridges et créer les tableaux __BR_ifaces
for confbr in "${__nfc_confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
array_addu brs "$br"
eval "local -a ${br}_ifaces"
done
# puis constuire la liste des interfaces associées à chaque bridge
for confbr in "${__nfc_confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
array_extendu "${br}_ifaces" ifaces
done
# puis construire le tableau final
array_new confbrs
for br in "${brs[@]}"; do
array_add confbrs "$(network_format_confbr "$br" "${br}_ifaces")"
done
array_copy __nfc_confbrs confbrs
}
function network_fix_confbrs() {
# normaliser le tableau $1(=confbrs): fusionner les doublons
local -a __nfc_confbrs
array_copy __nfc_confbrs "${1:-confbrs}"
__network_fix_confbrs
array_copy "${1:-confbrs}" __nfc_confbrs
}
function __network_fix_confips() {
local -a confips ipsuffixes ifaces ips
local confip iface gateway ip suffix mainip
# recenser les interfaces et créer les tableaux __IFACE_ipspecs
for confip in "${__nfc_confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
[ -n "$iface" ] || iface="$mainiface"
array_addu ifaces "$iface"
eval "local ${iface}_gateway; local -a ${iface}_ipsuffixes"
done
# puis construire la liste des adresses IP associées à chaque interface
for confip in "${__nfc_confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
[ -n "$iface" ] || iface="$mainiface"
# si la passerelle a déjà été spécifiée, la récupérer
local tmpgw="${iface}_gateway"
[ -n "${!tmpgw}" ] && gateway="${!tmpgw}"
# calculer l'adresse ip principale, pour pouvoir traiter le cas où
# l'adresse ip principale est l'adresse de la passerelle.
mainip=
for ipsuffix in "${ipsuffixes[@]}"; do
network_parse_ipsuffix "$ipsuffix" ip suffix
if ! array_contains ips "$ip"; then
[ -n "$suffix" ] || suffix=24
if [ -z "$mainip" ]; then
[ -n "$gateway" ] || gateway="$(ipcalc_gateway "$ip" "$suffix")"
mainip="$ip"
fi
array_add "${iface}_ipsuffixes" "$(network_format_ipsuffix "$ip" "$suffix")"
array_add ips "$ip"
fi
done
[ "$gateway" == "$mainip" ] && gateway=
# si l'adresse ip principale est obtenue par dhcp, il ne faut pas
# spécifier la passerelle: elle sera fournie par le serveur DHCP.
# Utiliser le marqueur "none" pour que la valeur ne soit pas modifiée.
[ "${ipsuffixes[0]}" == "dhcp" ] && gateway=none
set_var "${iface}_gateway" "$gateway"
done
# puis construire le tableau final
array_new confips
for iface in "${ifaces[@]}"; do
gateway="${iface}_gateway"; gateway="${!gateway}"
[ "$gateway" == "none" ] && gateway=
array_add confips "$(network_format_confip "$iface" "$gateway" "${iface}_ipsuffixes")"
done
array_copy __nfc_confips confips
}
function network_fix_confips() {
# normaliser le tableau $1(=confips): fusionner les doublons, spécifier le
# suffixe /24 par défaut, etc. $2 est le cas échéant l'interface associée
# aux adresses ip non qualifiées
local -a __nfc_confips
array_copy __nfc_confips "${1:-confips}"
local mainiface="$2"
__network_fix_confips
array_copy "${1:-confips}" __nfc_confips
}
function __network_fix_mainiface() {
local -a confips ifaces ipsuffixes
local br iface gateway confip mainconfip
# déterminer mainiface
if [ -z "$mainiface" -a -n "${__nfm_confbrs[0]}" ]; then
network_parse_confbr "${__nfm_confbrs[0]}" br ifaces
mainiface="$br"
fi
if [ -z "$mainiface" -a -n "${__nfm_confips[0]}" ]; then
network_parse_confip "${__nfm_confips[0]}" iface gateway ipsuffixes
mainiface="$iface"
fi
[ -n "$mainiface" ] || mainiface=eth0
# ensuite, il faut reécrire confips avec la valeur de mainiface
array_new confips
for confip in "${__nfm_confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
[ -n "$iface" ] || iface="$mainiface"
confip="$(network_format_confip "$iface" "$gateway" ipsuffixes)"
if [ "$iface" == "$mainiface" ]; then
mainconfip="$confip"
else
array_add confips "$confip"
fi
done
[ -n "$mainconfip" ] && array_ins confips "$mainconfip"
array_copy __nfm_confips confips
}
function network_fix_mainiface() {
# A partir des valeurs des tableaux $1(=confbrs) et $2(=confips), et de
# l'interface principale $3, déterminer l'interface principale. Si $3 est
# spécifié, c'est la valeur sélectionnée. Sinon, si un bridge existe, c'est
# le premier bridge qui est sélectionné. Sinon, la première interface est
# sélectionnée. Sinon, on prend eth0.
# Ensuite, réorganiser les tableaux de façon que confips[0] devienne la
# configuration ip de l'interface principale.
local -a __nfm_confbrs __nfm_confips
array_copy __nfm_confbrs "${1:-confbrs}"
array_copy __nfm_confips "${2:-confips}"
local mainiface="$3"
__network_fix_mainiface
array_copy "${2:-confips}" __nfm_confips
}
function network_fix_confs() {
network_fix_confbrs "${1:-confbrs}"
network_fix_confips "${2:-confips}"
network_fix_mainiface "${1:-confbrs}" "${2:-confips}" "$3"
}
function __network_valid_ifaces() {
ip link | awk '/<.*>/ {
flags = $0; sub(/^.*</, ",", flags); sub(/>.*$/, ",", flags)
if (flags ~ /,LOOPBACK,/) next
if (flags !~ /,UP,/) next
sub(/:$/, "", $2); print $2
}'
}
function __network_set_confbrs() {
local -a ifaces tmpconfbrs confbrs
local confbr br iface
array_from_lines ifaces "$(__network_valid_ifaces)"
array_from_lines tmpconfbrs "$(brctl show 2>/dev/null | awk '
BEGIN { confbrs = "" }
NR == 1 { next }
{
if ($1 != "" && $2 != "") {
if (confbr != "") print confbr
confbr = $1 ":" $4
} else {
confbr = confbr "," $1
}
}
END {
if (confbr != "") print confbr
}
')"
for confbr in "${tmpconfbrs[@]}"; do
splitpair "$confbr" br iface
array_contains ifaces "$br" || continue
array_add confbrs "$confbr"
done
array_copy __nsc_confbrs confbrs
}
function network_set_confbrs() {
# initialiser $1(=confbrs) avec l'état des bridges sur le système courant
local -a __nsc_confbrs
__network_set_confbrs
array_copy "${1:-confbrs}" __nsc_confbrs
}
function __network_set_gateway() {
# initialiser la variable gateway avec la passerelle associée à l'interface
# $1
gateway="$(route -n | awk -v iface="$1" '$1 == "0.0.0.0" && $8 == iface { print $2 }')"
}
function __network_set_confip() {
# initialiser la variable confip avec l'état de l'interface $1.
# retourner 1 si l'interface n'a pas d'adresse ip associée
local -a ipsuffixes
array_from_lines ipsuffixes "$(ip addr show dev "$1" | awk '$1 == "inet" { print $2 }')"
__network_set_gateway "$1"
confip="$(network_format_confip "$iface" "$gateway" ipsuffixes)"
[ "${#ipsuffixes[*]}" -gt 0 ]
}
function __network_set_confips() {
local -a confips ifaces
local iface
array_from_lines ifaces "$(__network_valid_ifaces)"
for iface in "${ifaces[@]}"; do
__network_set_confip "$iface" || continue
array_add confips "$confip"
done
array_copy __nsc_confips confips
}
function network_set_confips() {
# initialiser le tableau $1(=confips) avec l'état des interfaces sur le
# système courant
local -a __nsc_confips
__network_set_confips
array_copy "${1:-confips}" __nsc_confips
}
function network_interfaces_check_confbr() {
:
}
function network_interfaces_check_confip() {
:
}
function network_interfaces_remove_iface() {
:
}
function network_interfaces_add_confbr() {
:
}
function network_interfaces_add_confip() {
:
}
#XXX
function __old_network_backup() {
local file="$1"
local backup="$file.orig$(date +%Y%m%d)"
[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
}
function __old_network_hostname() {
local hostname="${1%%.*}"
[ -f /etc/hostname ] || touch /etc/hostname
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/hostname to $hostname"
elif [ "$(</etc/hostname)" != "$hostname" ]; then
__old_network_backup /etc/hostname
if show_debug; then
edebug "Setting /etc/hostname to $hostname"
else
estep /etc/hostname
fi
echo "$hostname" >/etc/hostname
fi
}
function __old_network_mailname() {
local host="$1"
[ -f /etc/mailname ] || touch /etc/mailname
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/mailname to $host"
elif [ "$(</etc/mailname)" != "$host" ]; then
__old_network_backup /etc/mailname
if show_debug; then
edebug "Setting /etc/mailname to $host"
else
estep /etc/mailname
fi
echo "$host" >/etc/mailname
fi
}
function __old_network_fix_exim4() {
local host="$1" oldhost="$2"
local tmpfile; ac_set_tmpfile tmpfile
sed </etc/exim4/update-exim4.conf.conf >"$tmpfile" "
/^dc_other_hostnames=/c\\
dc_other_hostnames='$host'"
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
if testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
uecho "Setting /etc/exim4/update-exim4.conf.conf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
uecho "/etc/exim4/update-exim4.conf.conf: pas de modifications"
fi
elif testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
__old_network_backup /etc/exim4/update-exim4.conf.conf
if show_debug; then
edebug "Setting /etc/exim4/update-exim4.conf.conf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/exim4/update-exim4.conf.conf
fi
cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
update-exim4.conf
fi
ac_clean "$tmpfile"
}
function __old_network_fix_postfix() {
local host="$1" oldhost="$2"
local tmpfile; ac_set_tmpfile tmpfile
awkrun </etc/postfix/main.cf >"$tmpfile" host="$host" oldhost="$oldhost" '
/^myhostname *=/ { $0 = "myhostname = " host }
/^mydestination *=/ {
gsub(" *" oldhost " *,? *", "")
if ($0 !~ (" *" host " *,? *")) {
sub(/^mydestination *= */, "mydestination = " host ", ")
}
}
{ print }'
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
if testdiff "$tmpfile" /etc/postfix/main.cf; then
uecho "Setting /etc/postfix/main.cf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
uecho "/etc/postfix/main.cf: pas de modifications"
fi
elif testdiff "$tmpfile" /etc/postfix/main.cf; then
__old_network_backup /etc/postfix/main.cf
if show_debug; then
edebug "Setting /etc/postfix/main.cf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/postfix/main.cf
fi
cat "$tmpfile" >/etc/postfix/main.cf
fi
ac_clean "$tmpfile"
}
function __old_network_hosts() {
local host="$1" hostname="${1%%.*}" ip="$2"
local shost="${host//./\\.}"
local tmpfile; ac_set_tmpfile tmpfile
awkrun </etc/hosts >"$tmpfile" host="$host" hostname="$hostname" ip="$ip" '
/^[^# \t]/ {
gsub("[ \\t]+" host "[ \\t]*", " ")
gsub("[ \\t]+" hostname "[ \\t]*", " ")
if ($0 ~ /^[^ \t]+[ \t]*$/) next
gsub(/[ \t]*$/, "")
}
{ print }'
local sip="${ip//./\\.}" shost="${host//./\\.}"
if ! quietgrep "^$sip[ $TAB]\\+$shost[ $TAB]\\+$hostname" "$tmpfile"; then
sed -i "/^$sip[ $TAB]/d" "$tmpfile"
sed -i "1i\\
$ip$TAB$host $hostname" "$tmpfile"
fi
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
if testdiff "$tmpfile" /etc/hosts; then
uecho "Setting /etc/hosts to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
uecho "/etc/hosts: pas de modifications"
fi
elif testdiff "$tmpfile" /etc/hosts; then
__old_network_backup /etc/hosts
if show_debug; then
edebug "Setting /etc/hosts to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/hosts
fi
cat "$tmpfile" >/etc/hosts
fi
ac_clean "$tmpfile"
}
__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT='
BEGIN {
method = "dhcp"
array_new(have_iface_hotplugs)
array_new(have_iface_autos)
array_new(have_iface_manuals)
array_new(ips)
array_new(suffixes)
array_new(gateways)
array_new(have_ip_ups)
array_new(have_ip_downs)
}
function indexof_iface(iface, i) {
for (i = 1; i <= ifaces_count; i++) {
if (ifaces[i] == iface) {
return i
}
}
return 0
}
function indexof_ip(ip, i) {
for (i = 1; i <= ipspecs_count; i++) {
if (ips[i] == ip) {
return i
}
}
return 0
}
function get_netmask(suffix) {
if (suffix == 0) return "0.0.0.0"
else if (suffix == 8) return "255.0.0.0"
else if (suffix == 16) return "255.255.0.0"
else if (suffix == 24) return "255.255.255.0"
else if (suffix == 32) return "255.255.255.255"
else return suffix
}
function remove_hotplug_iface(iface, line) {
if (line == "") line = $0
if (line !~ / $/) line = line " "
gsub(" " iface " ", " ", line)
return line
}
function print_hotplug_iface(line) {
if (line ~ /^allow-hotplug *$/) {
# une seule interface sur la ligne: ne pas l"afficher
} else {
# supprimer l"interface de la ligne
sub(/ *$/, "", line)
print line
}
}
function remove_auto_iface(iface, line) {
if (line == "") line = $0 " "
gsub(" " iface " ", " ", line)
return line
}
function print_auto_iface(line) {
if (line ~ /^(allow-)?auto *$/) {
# une seule interface sur la ligne: ne pas l"afficher
} else {
# supprimer l"interface de la ligne
sub(/ *$/, "", line)
print line
}
}
'
__DEBIAN_NETWORK_UPDATE_BRIDGE_SCRIPT='
BEGIN {
for (i = 1; i <= ifaces_count; i++) {
have_iface_hotplugs[i] = 0
have_iface_autos[i] = 0
have_iface_manuals[i] = 0
}
for (i = 1; i <= ipspecs_count; i++) {
if (match(ipspecs[i], "^([^/]*)(/([^+]*))?(\\+(.*))?$", vs) != 0) {
ip = vs[1]
suffix = vs[3]
gateway = vs[5]
} else {
ip = ""
suffix = ""
gateway = ""
}
if (i == 1) {
if (ip == "dhcp") {
method = "dhcp"
} else {
method = "static"
mainip = ip
}
}
if (suffix == "") suffix = "24"
ips[i] = ip
suffixes[i] = suffix
gateways[i] = gateway
have_ip_ups[i] = i == 1
have_ip_downs[i] = i == 1
}
}
'
__DEBIAN_NETWORK_UPDATE_IFACE_SCRIPT='
BEGIN {
for (i = 1; i <= ipspecs_count; i++) {
if (match(ipspecs[i], "^([^/]*)(/([^+]*))?(\\+(.*))?$", vs) != 0) {
ip = vs[1]
suffix = vs[3]
gateway = vs[5]
} else {
ip = ""
suffix = ""
gateway = ""
}
if (i == 1) {
if (ip == "dhcp") {
method = "dhcp"
} else {
method = "static"
mainip = ip
}
}
if (suffix == "") suffix = "24"
ips[i] = ip
suffixes[i] = suffix
gateways[i] = gateway
have_ip_ups[i] = i == 1
have_ip_downs[i] = i == 1
}
}
'
function __old_network_update_bridge() {
# vérifier la configuration (interfaces de ifaces[@] en manual, présence du
# bridge, bridge en auto, adresse ip principale statique ou en dhcp,
# adresses ip supplémentaires), puis si nécessaire, supprimer l'ancienne
# configuration et créer la nouvelle.
local inf="$1"; shift
local outf="$1"; shift
awkrun <"$inf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" ifaces[@]="${3:-ifaces}" '
BEGIN {
have_hotplug = 0
have_auto = 0
have_iface = 0
have_method = 0 # static ou dhcp
in_iface = 0
have_mainip = 0
}
'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_BRIDGE_SCRIPT
"'
$1 == "iface" && $2 == iface && $3 == "inet" {
have_iface = 1
if (($0 " ") ~ (" " method " ")) have_method = 1
in_iface = 1
next
}
in_iface && ($0 " ") ~ "^[ \\t]*address " mainip " " { have_mainip = 1 }
in_iface && $0 ~ "^[ \\t]*up (/sbin/)?ip addr add " {
if (match($0, "ip addr add (.*)/.* dev " iface, vs) != 0) {
i = indexof_ip(vs[1])
if (i != 0) have_ip_ups[i] = 1
}
next
}
in_iface && $0 ~ "^[ \\t]*down (/sbin/)?ip addr del " {
if (match($0, "ip addr del (.*)/.* dev " iface, vs) != 0) {
i = indexof_ip(vs[1])
if (i != 0) have_ip_downs[i] = 1
}
next
}
$1 == "iface" {
i = indexof_iface($2)
if (i != 0 && $3 == "inet" && $4 == "manual") {
have_iface_manuals[i] = 1
}
in_iface = 0
next
}
$1 == "allow-hotplug" {
if (($0 " ") ~ (" " iface " ")) have_hotplug = 1
for (i = 1; i <= ifaces_count; i++) {
if (($0 " ") ~ (" " ifaces[i] " ")) iface_have_hotplugs[i] = 1
}
in_iface = 0
next
}
$1 ~ /^(allow-)?auto$/ {
if (($0 " ") ~ (" " iface " ")) have_auto = 1
for (i = 1; i <= ifaces_count; i++) {
if (($0 " ") ~ (" " ifaces[i] " ")) have_iface_autos[i] = 1
}
in_iface = 0
next
}
END {
check_hotplug = !have_hotplug
if (check_hotplug) for (i = 1; i <= ifaces_count; i++) {
if (iface_have_hotplugs[i]) {
check_hotplug = 0
break
}
}
check_auto = have_auto
if (check_auto) for (i = 1; i <= ifaces_count; i++) {
if (!have_iface_autos[i]) {
check_auto = 0
break
}
}
check_iface = have_iface && have_method && have_mainip
check_supplips = 1
for (i = 1; i <= ipspecs_count; i++) {
if (!have_ip_ups[i] || !have_ip_downs[i]) {
check_supplips = 0
break
}
}
if (!check_hotplug || !check_auto || !check_iface || !check_supplips) {
exit 1 # il faut refaire la configuration
}
exit 0 # tout est ok
}
' && return 1
# il faut refaire la configuration
awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" ifaces[@]="${3:-ifaces}" '
BEGIN {
have_auto = 0
remove_auto = 0
array_new(remove_iface_autos)
for (i = 1; i <= ifaces_count; i++) {
remove_iface_autos[i] = 0
}
replace_conf = 1
in_iface = 0
found_iface = 0
remove_old_iface = 0
}
'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_BRIDGE_SCRIPT
"'
function write_conf() {
replace_conf = 0
for (i = 1; i <= ifaces_count; i++) {
printed = 0
if (!have_iface_autos[i]) {
print "auto " ifaces[i]
printed = 1
}
if (!have_iface_manuals[i]) {
print "iface " ifaces[i] " inet manual"
printed = 1
}
if (printed) print ""
}
if (!have_auto) print "auto " iface
print "iface " iface " inet " method
if (ipspecs_count > 0 && method == "static") {
print " address " ips[1]
print " netmask " get_netmask(suffixes[1])
if (gateways[1] != "" && gateways[1] != ips[1]) {
print " gateway " gateways[1]
}
}
ports = " bridge_ports"
if (ifaces_count == 0) {
ports = ports " none"
} else {
for (i = 1; i <= ifaces_count; i++) {
ports = ports " " ifaces[i]
}
}
print ports
print " bridge_stp off"
print " bridge_fd 2"
print " bridge_maxwait 0"
serial = 0
for (i = 2; i <= ipspecs_count; i++) {
print " up ip addr add " ips[i] "/" suffixes[i] " dev " iface " label " iface ":" serial
print " down ip addr del " ips[i] "/" suffixes[i] " dev " iface " label " iface ":" serial
serial++
}
print ""
}
remove_old_iface && $1 == "iface" {
remove_old_iface = 0
}
!remove_old_iface && replace_conf && !in_iface && $1 == "iface" && $2 == iface && $3 == "inet" {
in_iface = 1
found_iface = 1
next
}
!remove_old_iface && $1 == "iface" {
in_iface = 0
for (i = 1; i <= ifaces_count; i++) {
if ($2 == ifaces[i]) {
if ($3 == "inet" && $4 == "manual") {
have_iface_manuals[i] = 1
break
} else {
remove_old_iface = 1
}
}
}
if (replace_conf && found_iface) write_conf()
if (!remove_old_iface) print
next
}
$1 == "allow-hotplug" {
in_iface = 0
remove_old_iface = 0
if (replace_conf && found_iface) write_conf()
line = $0
if (($0 " ") ~ (" " iface " ")) line = remove_hotplug_iface(iface, line)
for (i = 1; i <= ifaces_count; i++) {
if (($0 " ") ~ (" " ifaces[i] " ")) line = remove_hotplug_iface(ifaces[i], line)
}
print_hotplug_iface(line)
next
}
$1 ~ /(allow-)?auto/ {
in_iface = 0
remove_old_iface = 0
if (replace_conf && found_iface) write_conf()
line = $0
if (($0 " ") ~ (" " iface " ")) {
if (!remove_auto) {
have_auto = 1
remove_auto = 1
} else {
line = remove_auto_iface(iface, line)
}
}
for (i = 1; i <= ifaces_count; i++) {
if (($0 " ") ~ (" " ifaces[i] " ")) {
if (!remove_iface_autos[i]) {
have_iface_autos[i] = 1
remove_iface_autos[i] = 1
} else {
line = remove_auto_iface(ifaces[i], line)
}
}
}
print_auto_iface(line)
next
}
{ print }
END {
if (replace_conf) write_conf()
}
'
return 0
}
function __old_network_update_iface() {
# vérifier la configuration (présence de l'interface, interface en auto,
# adresse ip principale statique ou en dhcp, adresses ip supplémentaires),
# puis si nécessaire, supprimer l'ancienne configuration et créer la
# nouvelle.
local inf="$1"; shift
local outf="$1"; shift
awkrun <"$inf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
BEGIN {
have_hotplug = 0
have_auto = 0
have_iface = 0
have_method = 0 # static ou dhcp
in_iface = 0
have_mainip = 0
}
'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_IFACE_SCRIPT
"'
$1 == "iface" && $2 == iface && $3 == "inet" {
have_iface = 1
if (($0 " ") ~ (" " method " ")) have_method = 1
in_iface = 1
next
}
in_iface && ($0 " ") ~ "^[ \\t]*address " mainip " " { have_mainip = 1 }
in_iface && $0 ~ "^[ \\t]*up (/sbin/)?ip addr add " {
if (match($0, "ip addr add (.*)/.* dev " iface, vs) != 0) {
i = indexof_ip(vs[1])
if (i != 0) have_ip_ups[i] = 1
}
next
}
in_iface && $0 ~ "^[ \\t]*down (/sbin/)?ip addr del " {
if (match($0, "ip addr del (.*)/.* dev " iface, vs) != 0) {
i = indexof_ip(vs[1])
if (i != 0) have_ip_downs[i] = 1
}
next
}
$1 == "iface" {
in_iface = 0
next
}
$1 == "allow-hotplug" {
if (($0 " ") ~ (" " iface " ")) have_hotplug = 1
in_iface = 0
next
}
$1 ~ /^(allow-)?auto$/ {
if (($0 " ") ~ (" " iface " ")) have_auto = 1
in_iface = 0
next
}
END {
check_hotplug = !have_hotplug
check_auto = have_auto
check_iface = have_iface && have_method && have_mainip
check_supplips = 1
for (i = 1; i <= ipspecs_count; i++) {
if (!have_ip_ups[i] || !have_ip_downs[i]) {
check_supplips = 0
break
}
}
if (!check_hotplug || !check_auto || !check_iface || !check_supplips) {
exit 1 # il faut refaire la configuration
}
exit 0 # tout est ok
}
' && return 1
# il faut refaire la configuration
awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
BEGIN {
have_auto = 0
remove_auto = 0
replace_conf = 1
in_iface = 0
found_iface = 0
}
'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_IFACE_SCRIPT
"'
function write_conf() {
replace_conf = 0
if (!have_auto) print "auto " iface
print "iface " iface " inet " method
if (ipspecs_count > 0 && method == "static") {
print " address " ips[1]
print " netmask " get_netmask(suffixes[1])
if (gateways[1] != "" && gateways[1] != ips[1]) {
print " gateway " gateways[1]
}
}
serial = 0
for (i = 2; i <= ipspecs_count; i++) {
print " up ip addr add " ips[i] "/" suffixes[i] " dev " iface " label " iface ":" serial
print " down ip addr del " ips[i] "/" suffixes[i] " dev " iface " label " iface ":" serial
serial++
}
print ""
}
($0 " ") ~ ("^allow-hotplug.* " iface " ") { print_hotplug_iface(remove_hotplug_iface(iface)); next; }
!remove_auto && ($0 " ") ~ ("^(allow-)?auto.* " iface " ") { have_auto = 1; remove_auto = 1; next; }
remove_auto && ($0 " ") ~ ("^(allow-)?auto.* " iface " ") { print_auto_iface(remove_auto_iface(iface)); next; }
replace_conf && !in_iface && $0 ~ ("^iface " iface " inet ") { in_iface = 1; found_iface = 1; next; }
replace_conf && found_iface && in_iface && $0 ~ "^iface " { print; in_iface = 0; write_conf(); next; }
{ print }
END {
if (replace_conf) write_conf()
}
'
return 0
}
function network_config() {
# (Re)configurer le réseau sur l'hôte courant.
# $1 (host) est le nom d'hôte.
# $2 (confips) est le nom d'un tableau 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, c'est à dire
# l'interface qui est sélectionnée si une adresse ip n'est pas préfixée de
# son interface. En principe, l'interface principale est le premier bridge
# défini ou la première interface définie.
# $5 (reset_interfaces) spécifie de ne pas chercher à mettre à jour le
# fichier /etc/network/interfaces, mais de le recréer depuis zéro.
# 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[/suffix][+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" reset_interfaces="$5"
local -a confips confbrs
array_copy confips __nc_confips
array_copy confbrs __nc_confbrs
__old_network_fix_confips confips
__old_network_fix_confbrs confbrs
local mainbr # bridge principal
local mainip # adresse IP principale de l'interface principale
local confbr confip br iface suffix gateway
local -a ipspecs
__old_network_resolve_mainiface mainiface "${confbrs[0]}" "${confips[0]}"
__old_network_parse_confbr "${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
__old_network_parse_confip "$confip" iface
array_addu ifaces_with_ips "$iface"
done
for confbr in "${confbrs[@]}"; do
__old_network_parse_confbr "$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 "${confips[@]}"; do
__old_network_parse_confip "$confip" iface
[ -n "$iface" ] || iface="$mainiface"
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"
if [ -n "$reset_interfaces" ]; then
echo >"$interfaces" "\
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
"
fi
# configurer chaque bridge
local -a tmpifaces
local tmpbr
for confip in "${confbrips[@]}"; do
__old_network_parse_confip "$confip" br ipspecs
[ -n "$br" ] || br="$mainbr"
if [ -z "$mainip" -a "$br" == "$mainiface" ]; then
__old_network_parse_ipspec "${ipspecs[0]}" mainip suffix gateway
fi
ifaces=()
for confbr in "${confbrs[@]}"; do
__old_network_parse_confbr "$confbr" tmpbr tmpifaces
if [ "$tmpbr" == "$br" ]; then
array_copy ifaces tmpifaces
break
fi
done
if __old_network_update_bridge "$interfaces" "$workfile" "$br" ipspecs ifaces; then
cat "$workfile" >"$interfaces"
fi
done
# configurer chaque interface classique
for confip in "${confstdips[@]}"; do
__old_network_parse_confip "$confip" iface ipspecs
[ -n "$iface" ] || iface="$mainiface"
if [ -z "$mainip" -a "$iface" == "$mainiface" ]; then
__old_network_parse_ipspec "${ipspecs[0]}" mainip suffix gateway
fi
if __old_network_update_iface "$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
__old_network_backup /etc/network/interfaces
if show_debug; then
edebug "Setting /etc/network/interfaces to:"
cat "$interfaces" | sed 's/^/ /g' 1>&2
else
estep /etc/network/interfaces
fi
cat "$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="${mainips[0]}"
fi
__old_network_hostname "$host"
__old_network_mailname "$host"
if [ -n "$mainip" ]; then
__old_network_hosts "$host" "$mainip"
fi
eend
fi
return 0
}