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 $2 est vide, sa valeur par défaut est
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# bridge_ports none
# bridge_stp off
# bridge_fd 2
# bridge_maxwait 0
# OPTIONS:
# --static L'interface est statique plutôt que de recevoir son
# adresse par DHCP
# --auto Démarrer l'interface automatiquement
# Une définition existante de l'interface n'est jamais écrasée.
# Retourner vrai si la définition a été ajoutée dans /etc/network/interfaces
local args method auto ifname lines
method=dhcp
parse_opts \
--static method=static \
--auto auto \
@ args -- "$@" && 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
}
}'
}
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__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS=
function __network_backup() {
local file="$1"
local backup="$file.orig$(date +%Y%m%d)"
[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
}
function __network_hostname() {
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local hostname="${1%%.*}"
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/hostname to $hostname"
else
__network_backup /etc/hostname
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echo "$hostname" >/etc/hostname
fi
}
function __network_mailname() {
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local host="$1"
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/mailname to $host"
else
__network_backup /etc/mailname
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echo "$host" >/etc/mailname
fi
}
function __network_fix_exim4() {
local host="$1"
local tmpfile; ac_set_tmpfile tmpfile
</etc/exim4/update-exim4.conf.conf sed '/^dc_other_hostnames=/c\
'"dc_other_hostnames='$host'" >"$tmpfile"
if [ -n "$__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 "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
__network_backup /etc/exim4/update-exim4.conf.conf
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cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
update-exim4.conf
fi
ac_clean "$tmpfile"
}
function __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" "$tmpfile"; then
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sed -i "/^$sip[ $TAB]/d" "$tmpfile"
sed -i "1i\\
$ip$TAB$host $hostname" "$tmpfile"
fi
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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
__network_backup /etc/hosts
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cat "$tmpfile" >/etc/hosts
fi
ac_clean "$tmpfile"
}
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function __network_parse_confip() {
# confip --> iface [ipspecs@] [ipspecs]
local __npc_tmp
splitfsep2 "$1" : "${2:-iface}" __npc_tmp
[ -n "$3" ] && array_split "$3" "$__npc_tmp" ,
[ -n "$4" ] && set_var "$4" "$__npc_tmp"
}
function __network_parse_ipspec() {
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# ipspec --> ip suffix gateway
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local __npi_tmp
splitfsep "$1" / "${2:-ip}" __npi_tmp
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splitfsep "$__npi_tmp" + "${3:-suffix}" "${4:-gateway}"
}
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function __network_parse_confbr() {
# confbr --> br [ifaces@] [ifaces]
local __npc_tmp
splitfsep "$1" : "${2:-br}" __npc_tmp
[ -n "$3" ] && array_split "$3" "$__npc_tmp" ,
[ -n "$4" ] && set_var "$4" "$__npc_tmp"
}
function __network_fix_confips() {
# confips@
local -a __nfc_confips __nfc_ipspecs __nfc_ifaces __nfc_ips
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local __nfc_confip __nfc_iface __nfc_ipspec __nfc_ip __nfc_suffix __nfc_gateway __nfc_first
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array_copy __nfc_confips "${1:-confips}"
# recenser les interfaces et créer les tableaux __IFACE_ipspecs
for __nfc_confip in "${__nfc_confips[@]}"; do
__network_parse_confip "$__nfc_confip" __nfc_iface __nfc_ipspecs
array_addu __nfc_ifaces "$__nfc_iface"
eval "local -a __nfc_${__nfc_iface}_ipspecs"
done
# puis constuire la liste des adresses IP associées à chaque interface
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for __nfc_confip in "${__nfc_confips[@]}"; do
__network_parse_confip "$__nfc_confip" __nfc_iface __nfc_ipspecs
for __nfc_ipspec in "${__nfc_ipspecs[@]}"; do
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__network_parse_ipspec "$__nfc_ipspec" __nfc_ip __nfc_suffix __nfc_gateway
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if ! array_contains __nfc_ips "$__nfc_ip"; then
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[ -n "$__nfc_suffix" ] || __nfc_suffix=24
if [ -z "$__nfc_gateway" ] && array_isempty "__nfc_${__nfc_iface}_ipspecs"; then
# premier ipspec, il faut spécifier le gateway
__nfc_gateway="$(ipcalc_gateway "$__nfc_ip" "$__nfc_suffix")"
fi
eval "array_add __nfc_${__nfc_iface}_ipspecs \"$__nfc_ip/$__nfc_suffix${__nfc_gateway:++$__nfc_gateway}\""
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array_add __nfc_ips "$__nfc_ip"
fi
done
done
# puis construire le tableau final
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array_new __nfc_confips
for __nfc_iface in "${__nfc_ifaces[@]}"; do
array_add __nfc_confips "$__nfc_iface:$(array_join "__nfc_${__nfc_iface}_ipspecs" ,)"
done
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array_copy "${1:-confips}" __nfc_confips
}
function __network_fix_confbrs() {
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# confbrs@
local -a __nfc_confbrs __nfc_ifaces __nfc_brs __nfc_ips
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local __nfc_confbr __nfc_br __nfc_iface __nfc_ip __nfc_suffix __nfc_gateway
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array_copy __nfc_confbrs "${1:-confbrs}"
# recenser les bridges et créer les tableaux __BR_ifaces
for __nfc_confbr in "${__nfc_confbrs[@]}"; do
__network_parse_confbr "$__nfc_confbr" __nfc_br __nfc_ifaces
array_addu __nfc_brs "$__nfc_br"
eval "local -a __nfc_${__nfc_br}_ifaces"
done
# puis constuire la liste des interfaces associées à chaque bridge
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for __nfc_confbr in "${__nfc_confbrs[@]}"; do
__network_parse_confbr "$__nfc_confbr" __nfc_br __nfc_ifaces
array_extendu "__nfc_${__nfc_br}_ifaces" __nfc_ifaces
done
# puis construire le tableau final
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array_new __nfc_confbrs
for __nfc_br in "${__nfc_brs[@]}"; do
array_add __nfc_confbrs "$__nfc_br:$(array_join "__nfc_${__nfc_br}_ifaces" ,)"
done
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array_copy "${1:-confbrs}" __nfc_confbrs
}
function __network_resolve_mainiface() {
local __nrm_mainiface="${1:-mainiface}" __nrm_mainconfbr="$2" __nrm_mainconfip="$3"
[ -n "${!__nrm_mainiface}" ] || __network_parse_confbr "$__nrm_mainconfbr" "$__nrm_mainiface"
[ -n "${!__nrm_mainiface}" ] || __network_parse_confip "$__nrm_mainconfip" "$__nrm_mainiface"
[ -n "${!__nrm_mainiface}" ] || set_var "$__nrm_mainiface" eth0
}
function __network_set_mainip() {
# XXX modifier pour en faire set_confips, qui initialise confips en fonction
# des adresses actuelles, principale et supplémentaire
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eval "$(ip addr show dev "$1" | awk "BEGIN {
mainipvar = \"${2:-mainip}\"
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suffixvar = \"${3:-suffix}\"
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broadcastvar = \"${4:-broadcast}\"
"'
print mainipvar "="
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print suffixvar "="
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print broadcastvar "="
}
$1 == "inet" {
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mainip = ""; suffix = ""; broadcast = ""
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if (match($0, "inet ([^ ]*)/([^ ]*) ", vs) != 0) {
mainip = vs[1]
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suffix = vs[2]
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}
if (match($0, "brd ([^ ]*) ", vs) != 0) {
broadcast = vs[1]
}
print mainipvar "=\"" mainip "\""
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print suffixvar "=\"" suffix "\""
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print broadcastvar "=\"" broadcast "\""
exit 0
}')"
}
function __network_set_gateway() {
eval "$(route -n | awk "BEGIN {
iface = \"$1\"
gatewayvar = \"${2:-gateway}\"
"'
print gatewayvar "="
}
$1 == "0.0.0.0" && $8 == iface {
print gatewayvar "=\"" $2 "\""
}')"
}
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#BUG")"
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__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT='
BEGIN {
method = "dhcp"
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array_new(have_iface_hotplugs)
array_new(have_iface_autos)
array_new(have_iface_manuals)
array_new(ips)
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array_new(suffixes)
array_new(gateways)
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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(/ *$/, "", line)
print line
}
}
'
__DEBIAN_NETWORK_UPDATE_BRIDGE_SCRIPT='
BEGIN {
for (i = 1; i <= ifaces_count; i++) {
have_iface_hotplugs[i] = 0
have_iface_autos[i] = 0
have_iface_manuals[i] = 0
}
for (i = 1; i <= ipspecs_count; i++) {
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if (match(ipspecs[i], "^([^/]*)(/([^+]*))?(\\+(.*))?$", vs) != 0) {
ip = vs[1]
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suffix = vs[3]
gateway = vs[5]
} else {
ip = ""
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suffix = ""
gateway = ""
}
if (i == 1) {
if (ip == "dhcp") method = "dhcp"
else method = "static"
}
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if (suffix == "") suffix = "24"
ips[i] = ip
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suffixes[i] = suffix
gateways[i] = gateway
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have_ip_ups[i] = 0
have_ip_downs[i] = 0
}
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}
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'
__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 = ""
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}
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if (i == 1) {
if (ip == "dhcp") method = "dhcp"
else method = "static"
}
if (suffix == "") suffix = "24"
ips[i] = ip
suffixes[i] = suffix
gateways[i] = gateway
have_ip_ups[i] = 0
have_ip_downs[i] = 0
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}
}
'
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function __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
}
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'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_BRIDGE_SCRIPT
"'
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$1 == "iface" && $2 == iface && $3 == "inet" {
have_iface = 1
if (($0 " ") ~ (" " method " ")) have_method = 1
in_iface = 1
next
}
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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])
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if (i != 0) have_ip_ups[i] = 1
}
next
}
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in_iface && $0 ~ "^[ \\t]*down (/sbin/)?ip addr del " {
if (match($0, "ip addr del (.*)/.* dev " iface, vs) != 0) {
i = indexof_ip(vs[1])
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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 (($0 " ") ~ (" " ifaces[i] " ")) have_iface_autos[i] = 1
}
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in_iface = 0
next
}
END {
check_hotplug = !have_hotplug
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if (check_hotplug) for (i = 1; i <= ifaces_count; i++) {
if (iface_have_hotplugs[i]) {
check_hotplug = 0
break
}
}
check_auto = have_auto
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if (check_auto) for (i = 1; i <= ifaces_count; i++) {
if (!have_iface_autos[i]) {
check_auto = 0
break
}
}
check_iface = have_iface && have_method && have_mainip
check_supplips = 1
for (i = 1; i <= ipspecs_count; i++) {
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if (!have_ip_ups[i] || !have_ip_downs[i]) {
check_supplips = 0
break
}
}
if (!check_hotplug || !check_auto || !check_iface || !check_supplips) {
exit 1 # il faut refaire la configuration
}
exit 0 # tout est ok
}
' && return 1
# il faut refaire la configuration
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awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" ifaces[@]="${3:-ifaces}" '
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BEGIN {
have_auto = 0
remove_auto = 0
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array_new(remove_iface_autos)
for (i = 1; i <= ifaces_count; i++) {
remove_iface_autos[i] = 0
}
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replace_conf = 1
in_iface = 0
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found_iface = 0
remove_old_iface = 0
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}
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'"
$__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])
print " gateway " gateways[1]
}
ports = " bridge_ports"
if (ifaces_count == 0) {
ports = ports " none"
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} else {
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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++
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}
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print ""
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}
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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
}
}
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}
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if (replace_conf && found_iface) write_conf()
if (!remove_old_iface) print
next
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}
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$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 __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
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}
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'"
$__DEBIAN_NETWORK_UPDATE_BASE_SCRIPT
$__DEBIAN_NETWORK_UPDATE_IFACE_SCRIPT
"'
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function write_conf() {
replace_conf = 0
if (!have_auto) print "auto " iface
print "iface " iface " inet " method
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if (ipspecs_count > 0 && method == "static") {
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print " address " ips[1]
print " netmask " get_netmask(suffixes[1])
print " gateway " gateways[1]
}
serial = 0
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for (i = 2; i <= ipspecs_count; i++) {
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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++
}
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print ""
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}
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($0 " ") ~ ("^allow-hotplug.* " iface " ") { print_hotplug_iface(remove_hotplug_iface(iface)); next; }
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!remove_auto && ($0 " ") ~ ("^(allow-)?auto.* " iface " ") { have_auto = 1; remove_auto = 1; next; }
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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; }
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{ print }
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END {
if (replace_conf) write_conf()
}
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'
return 0
}
function network_config() {
# (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
# 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.
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# Le tableau confips doit contenir des définitions d'une des formes
# suivantes:
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# [iface:]address[/suffix][+gateway],...
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# [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
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local -a __nc_confips __nc_confbrs
[ -n "$2" ] && array_copy __nc_confips "$2"
[ -n "$3" ] && array_copy __nc_confbrs "$3"
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local host="$1" mainiface="$4" reset_interfaces="$5"
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local -a confips confbrs
array_copy confips __nc_confips
array_copy confbrs __nc_confbrs
__network_fix_confips confips
__network_fix_confbrs confbrs
local mainbr # bridge principal
local mainip # adresse IP principale de l'interface principale
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local confbr confip br iface suffix gateway
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local -a ipspecs
__network_resolve_mainiface mainiface "${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
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[ -n "$iface" ] || iface="$mainiface"
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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"
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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
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# 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" == "$mainiface" ]; then
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__network_parse_ipspec "${ipspecs[0]}" mainip suffix gateway
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fi
ifaces=()
for confbr in "${confbrs[@]}"; do
__network_parse_confbr "$confbr" tmpbr tmpifaces
if [ "$tmpbr" == "$br" ]; then
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array_copy ifaces tmpifaces
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break
fi
done
if __network_update_bridge "$interfaces" "$workfile" "$br" ipspecs ifaces; then
cat "$workfile" >"$interfaces"
fi
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done
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# configurer chaque interface classique
for confip in "${confstdips[@]}"; do
__network_parse_confip "$confip" iface ipspecs
[ -n "$iface" ] || iface="$mainiface"
if [ -z "$mainip" -a "$iface" == "$mainiface" ]; then
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__network_parse_ipspec "${ipspecs[0]}" mainip suffix gateway
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fi
if __network_update_iface "$interfaces" "$workfile" "$iface" ipspecs; then
cat "$workfile" >"$interfaces"
fi
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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
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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: $host"
# si on ne spécifie pas l'adresse ip principale, la résoudre ici. ceci
# est nécessaire pour mettre à jour /etc/hosts
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if [ "$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
}
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mainip="${mainips[0]}"
fi
estep "/etc/hostname"
__network_hostname "$host"
estep "/etc/mailname"
__network_mailname "$host"
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if [ -f "/etc/exim4/update-exim4.conf.conf" ]; then
estep "/etc/exim4/update-exim4.conf.conf"
__network_fix_exim4 "$host"
fi
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# XXX tester la présence de postfix, et si nécessaire, modifier la
# configuration
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if [ -n "$mainip" ]; then
estep "/etc/hosts"
__network_hosts "$host" "$mainip"
fi
eend
fi
return 0
}