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
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urequire base sysinfos service ipcalc
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################################################################################
# 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
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__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS=
__DEBIAN_NETWORK_INTERFACES=/etc/network/interfaces
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function __network_parse_confbr() {
local br; local -a ifaces
splitpair "$1" br ifaces
array_split ifaces "$ifaces" ,
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__npc_destbr="$br"
array_copy __npc_destifaces ifaces
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}
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function network_parse_confbr() {
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# network_parse_confbr "$confbr" br ifaces
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local __npc_destbr; local -a __npc_destifaces
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__network_parse_confbr "$1"
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set_var "${2:-br}" "$__npc_destbr"
array_copy "${3:-ifaces}" __npc_destifaces
}
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function network_format_confbr() {
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# network_format_confbr "$br" ifaces --> "br:ifaces"
echo "$1:$(array_join "${2:-ifaces}" ,)"
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}
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function __network_parse_confip() {
local tmpig iface gateway; local -a ipsuffixes
splitfsep2 "$1" : tmpig ipsuffixes
splitfsep "$tmpig" // iface gateway
array_split ipsuffixes "$ipsuffixes" ,
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__npc_destiface="$iface"
__npc_destgateway="$gateway"
array_copy __npc_destipsuffixes ipsuffixes
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}
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function network_parse_confip() {
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# network_parse_confip "$confip" iface gateway ipsuffixes
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local __npc_destiface __npc_destgateway; local -a __npc_destipsuffixes
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__network_parse_confip "$1"
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set_var "${2:-iface}" "$__npc_destiface"
set_var "${3:-gateway}" "$__npc_destgateway"
array_copy "${4:-ipsuffixes}" __npc_destipsuffixes
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}
function network_parse_ipsuffix() {
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# network_parse_ipsuffix "$ipsuffix" ip suffix
splitfsep "$1" / "${2:-ip}" "${3:-suffix}"
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}
function network_format_confip() {
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# network_format_confip "$iface" "$gateway" ipsuffixes --> "iface//gateway:ipsuffixes"
local tmpig="$1${2:+//$2}"
echo "${tmpig:+$tmpig:}$(array_join "${3:-ipsuffixes}" ,)"
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}
function network_format_ipsuffix() {
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# network_format_ipsuffix "$ip" "$suffix" --> "ip:suffix"
if [ "${1,,}" == "dhcp" ]; then
echo "${1,,}"
else
echo "$1${2:+/$2}"
fi
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}
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function __network_fix_confbrs() {
local -a confbrs ifaces brs ips
local confbr br iface
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# recenser les bridges et créer les tableaux __BR_ifaces
for confbr in "${__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
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array_copy __nfc_destconfbrs confbrs
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}
function network_fix_confbrs() {
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# normaliser le tableau $1(=confbrs): fusionner les doublons
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local -a __nfc_confbrs __nfc_destconfbrs
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array_copy __nfc_confbrs "${1:-confbrs}"
__network_fix_confbrs
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array_copy "${1:-confbrs}" __nfc_destconfbrs
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}
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function __network_fix_confips() {
local -a confips ipsuffixes ifaces ips
local confip iface gateway ip suffix mainip
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local mainiface="$1"
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# recenser les interfaces et créer les tableaux __IFACE_ipspecs
for confip in "${__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
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array_copy __nfc_destconfips confips
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}
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function network_fix_confips() {
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# normaliser le tableau $1(=confips): fusionner les doublons, spécifier le
# suffixe /24 par défaut, etc. $2 est le cas échéant l'interface associée
# aux adresses ip non qualifiées
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local -a __nfc_confips __nfc_destconfips
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array_copy __nfc_confips "${1:-confips}"
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__network_fix_confips "$2"
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array_copy "${1:-confips}" __nfc_destconfips
}
function __network_fix_mainiface() {
local -a confips ifaces ipsuffixes
local br iface gateway confip mainconfip
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local mainiface="$1"
# déterminer mainiface
if [ -z "$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"
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array_copy __nfm_destconfips confips
}
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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 $3 est
# spécifié, c'est la valeur sélectionnée. Sinon, si un bridge existe, c'est
# le premier bridge qui est sélectionné. Sinon, la première interface est
# sélectionnée. Sinon, on prend eth0.
# Ensuite, réorganiser les tableaux de façon que confips[0] devienne la
# configuration ip de l'interface principale.
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local -a __nfm_confbrs __nfm_confips __nfm_destconfips
array_copy __nfm_confbrs "${1:-confbrs}"
array_copy __nfm_confips "${2:-confips}"
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__network_fix_mainiface "$3"
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array_copy "${2:-confips}" __nfm_destconfips
}
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function network_fix_confs() {
network_fix_confbrs "${1:-confbrs}"
network_fix_confips "${2:-confips}"
network_fix_mainiface "${1:-confbrs}" "${2:-confips}" "$3"
}
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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
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array_copy __nsc_destconfbrs confbrs
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}
function network_set_confbrs() {
# initialiser $1(=confbrs) avec l'état des bridges sur le système courant
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local -a __nsc_destconfbrs
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__network_set_confbrs
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array_copy "${1:-confbrs}" __nsc_destconfbrs
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}
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() {
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# initialiser la variable confip avec l'état de l'interface $1, en assumant
# que la passerelle vaut $2.
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# retourner 1 si l'interface n'a pas d'adresse ip associée
local -a ipsuffixes
array_from_lines ipsuffixes "$(ip addr show dev "$1" | awk '$1 == "inet" { print $2 }')"
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confip="$(network_format_confip "$1" "$2" ipsuffixes)"
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[ "${#ipsuffixes[*]}" -gt 0 ]
}
function __network_set_confips() {
local -a confips ifaces
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local iface gateway
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array_from_lines ifaces "$(__network_valid_ifaces)"
for iface in "${ifaces[@]}"; do
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__network_set_gateway "$iface"
__network_set_confip "$iface" "$gateway" || continue
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array_add confips "$confip"
done
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array_copy __nsc_destconfips confips
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}
function network_set_confips() {
# initialiser le tableau $1(=confips) avec l'état des interfaces sur le
# système courant
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local -a __nsc_destconfips
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__network_set_confips
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array_copy "${1:-confips}" __nsc_destconfips
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}
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function network_interfaces_check_confbr() {
# Vérifier que la configuration du bridge $1, dont les membres sont les
# interfaces du tableau $2(=ifaces) est faite dans le fichier
# $3(=/etc/network/interfaces)
local -a __nicc_ifaces; array_copy __nicc_ifaces "${2:-ifaces}"
local br="$1"
local -a ifaces; array_copy ifaces __nicc_ifaces
local nifile="${3:-$__DEBIAN_NETWORK_INTERFACES}"
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awkrun <"$nifile" -f br="$br" ifaces[@]=__nicc_ifaces '
BEGIN {
array_new(iface_have_autos)
array_new(iface_have_hotplugs)
array_new(iface_have_manuals)
for (i = 1; i <= ifaces_count; i++) {
iface_have_autos[i] = 0
iface_have_hotplugs[i] = 0
iface_have_manuals[i] = 0
}
br_have_auto = 0
br_have_hotplug = 0
have_br = 0
}
function get_iface_index(iface, i) {
for (i = 1; i <= ifaces_count; i++) {
if (ifaces[i] == iface) return i
}
return 0
}
$1 ~ /^(allow-)?auto$/ {
for (j = 2; j <= NF; j++) {
i = get_iface_index($j)
if (i != 0) iface_have_autos[i] = 1
if ($i == br) br_have_auto = 1
}
}
$1 == "allow-hotplug" {
for (j = 2; j <= NF; j++) {
i = get_iface_index($j)
if (i != 0) iface_have_hotplugs[i] = 1
if ($i == br) br_have_hotplug = 1
}
}
$1 == "iface" && $3 == "inet" && $4 == "manual" {
i = get_iface_index($2)
if (i != 0) iface_have_manuals[i] = 1
}
$1 == "iface" && $2 == br && $3 == "inet" {
have_br = 1
}
END {
check_auto_or_hotplug = br_have_auto || br_have_hotplug
check_manuals = 1
if (check_auto_or_hotplug) {
for (i = 1; i <= ifaces_count; i++) {
if (!iface_have_autos[i] && !iface_have_hotplugs[i]) {
check_auto_or_hotplug = 0
break
}
if (!iface_have_manuals[i]) {
check_manuals = 0
break
}
}
}
if (!check_auto_or_hotplug || !check_manuals || !have_br) {
exit 1
}
exit 0
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}'
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}
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function network_interfaces_check_confip() {
# Vérifier que la configuration de l'interface $1, avec la passerelle $2,
# avec les adresses IP du tabbleau $3(=ipsuffixes) est faite dans le fichier
# $4(=/etc/network/interfaces)
local -a __nicc_ipsuffixes; array_copy __nicc_ipsuffixes "${3:-ipsuffixes}"
local iface="$1" gateway="$2"
local -a ipsuffixes; array_copy ipsuffixes __nicc_ipsuffixes
local nifile="${4:-$__DEBIAN_NETWORK_INTERFACES}"
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awkrun <"$nifile" -f iface="$iface" gateway="$gateway" ipsuffixes[@]=ipsuffixes '
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BEGIN {
have_auto = 0
have_hotplug = 0
have_iface = 0
have_method = 0 # static ou dhcp
have_gateway = ipsuffixes[1] == "dhcp" || gateway == ""
array_new(have_ips)
array_new(have_ip_ups)
array_new(have_ip_downs)
for (i = 1; i <= ipsuffixes_count; i++) {
have_ips[i] = 1
have_ip_ups[i] = 0
have_ip_downs[i] = 0
}
have_ips[1] = 0
have_ip_ups[1] = 1
have_ip_downs[1] = 1
in_iface = 0
}
function get_ipsuffix_index(ipsuffix, i) {
ip0 = ipsuffix; sub(/\/[0-9]+$/, "", ip0)
for (i = 1; i <= ipsuffixes_count; i++) {
# XXX ne pas comparer les suffixes pour le moment
ipi = ipsuffixes[i]; sub(/\/[0-9]+$/, "", ipi)
if (ipi == ip0) return i
}
return 0
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}
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$1 == "iface" && $2 == iface && $3 == "inet" {
have_iface = 1
if (ipsuffixes[1] == "dhcp") {
have_method = $4 == "dhcp"
} else {
have_method = $4 == "static"
}
in_iface = 1
next
}
in_iface && $1 == "gateway" && $2 == gateway {
have_gateway = 1
next
}
in_iface && $1 == "address" && get_ipsuffix_index($2) == 1 {
have_ips[1] = 1
next
}
in_iface && $0 ~ "^[ \\t]*(post-)?up (/sbin/)?ip addr add " {
if (match($0, "ip addr add (.*/.*) dev " iface " ", vs) != 0) {
i = get_ipsuffix_index(vs[1])
if (i > 1) {
have_ip_ups[i] = 1
}
}
next
}
in_iface && $0 ~ "^[ \\t]*(pre-)?down (/sbin/)?ip addr del " {
if (match($0, "ip addr del (.*/.*) dev " iface " ", vs) != 0) {
i = get_ipsuffix_index(vs[1])
if (i > 1) {
have_ip_downs[i] = 1
}
}
next
}
$1 == "iface" {
in_iface = 0
next
}
$1 ~ /^(allow-)?auto$/ {
for (i = 2; i <= NF; i++) {
if ($i == iface) {
have_auto = 1
}
}
in_iface = 0
next
}
$1 == "allow-hotplug" {
for (i = 2; i <= NF; i++) {
if ($i == iface) {
have_hotplug = 1
}
}
in_iface = 0
next
}
END {
check_auto_or_hotplug = have_auto || have_hotplug
check_iface = have_iface && have_method && have_gateway
check_ips = 1
for (i = 1; i <= ipsuffixes_count; i++) {
if (!have_ips[i] || !have_ip_ups[i] || !have_ip_downs[i]) {
check_ips = 0
break
}
}
if (!check_auto_or_hotplug || !check_iface || !check_ips) {
exit 1
}
exit 0
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}'
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}
function __network_interfaces_remove_iface() {
awkrun -f iface="$1" '
function match_iface(iface, line) {
if (line == "") line = $0 " "
return line ~ (" " iface " ")
}
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
}
}
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
}
}
BEGIN {
in_iface = 0
found_iface = 0
modified = 0
}
!found_iface && $1 == "iface" && $2 == iface && $3 == "inet" {
in_iface = 1
found_iface = 1
modified = 1
next
}
$1 == "iface" {
in_iface = 0
}
$1 ~ /^(allow-)?auto$/ {
in_iface = 0
if (match_iface(iface)) {
print_auto_iface(remove_auto_iface(iface))
modified = 1
next
}
}
$1 == "allow-hotplug" {
in_iface = 0
if (match_iface(iface)) {
print_hotplug_iface(remove_hotplug_iface(iface))
modified = 1
next
}
}
!in_iface { print }
END {
if (modified) exit 0
else exit 1
}'
}
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function network_interfaces_remove_iface() {
# Supprimer dans le fichier $2(=/etc/network/interfaces) toute la
# configuration qui concerne l'interface $1
local iface="$1" nifile="${2:-$__DEBIAN_NETWORK_INTERFACES}"
local tmpfile; ac_set_tmpfile tmpfile
local modified
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if __network_interfaces_remove_iface "$iface" <"$nifile" >"$tmpfile"; then
cat "$tmpfile" >"$nifile"
modified=1
fi
ac_clean "$tmpfile"
[ -n "$modified" ]
}
function network_interfaces_remove_ifaces() {
# Supprimer dans le fichier $2(=/etc/network/interfaces) toute la
# configuration qui concerne les interfaces du tableau $1=(ifaces)
local -a __niri_ifaces; array_copy __niri_ifaces "${1:-ifaces}"
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local -a ifaces; array_copy ifaces __niri_ifaces
local nifile="${2:-$__DEBIAN_NETWORK_INTERFACES}"
local workfile; ac_set_tmpfile workfile
local tmpfile; ac_set_tmpfile tmpfile
local iface modified
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cat "$nifile" >"$workfile"
for iface in "${__niri_ifaces[@]}"; do
if __network_interfaces_remove_iface "$iface" <"$workfile" >"$tmpfile"; then
cat "$tmpfile" >"$workfile"
modified=1
fi
done
[ -n "$modified" ] && cat "$workfile" >"$nifile"
ac_clean "$workfile" "$tmpfile"
[ -n "$modified" ]
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}
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function network_interfaces_remove_confbr() {
# Supprimer dans le fichier $3(=/etc/network/interfaces) toute la
# configuration qui concerne le bridge $1, et dont les interfaces sont
# listées dans le tableau $2(=ifaces)
local -a __nirc_ifaces; array_copy __nirc_ifaces "${2:-ifaces}"
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local -a ifaces; array_copy ifaces __nirc_ifaces
array_ins ifaces "$1"
network_interfaces_remove_ifaces ifaces "$3"
}
function network_interfaces_add_confip() {
# ajouter dans le fichier $4(=/etc/network/interfaces) la configuration pour
# l'interface $1, avec éventuellement la passerelle $2, et les adresses ips
# telles qu'elles sont définies dans le table $3(=ipsuffixes)
local -a __niac_ipsuffixes; array_copy __niac_ipsuffixes "${3:-ipsuffixes}"
local iface="$1" gateway="$2"
local -a ipsuffixes; array_copy ipsuffixes __niac_ipsuffixes
local nifile="${4:-$__DEBIAN_NETWORK_INTERFACES}"
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local mainip netmask method
network_parse_ipsuffix "${ipsuffixes[0]}" mainip netmask
if [ "$mainip" == "dhcp" ]; then
mainip=
netmask=
method=dhcp
else
netmask="$(ipcalc_netmask "$netmask")"
[ -n "$netmask" ] || netmask=255.255.255.0
method=static
fi
echo >>"$nifile" "
auto $iface
iface $iface inet $method${mainip:+
address $mainip
netmask $netmask${gateway:+
gateway $gateway}}"
local i=0 ipsuffix
for ipsuffix in "${ipsuffixes[@]:1}"; do
echo >>"$nifile" "\
up ip addr add $ipsuffix dev $iface label $iface:$i
down ip addr del $ipsuffix dev $iface label $iface:$i"
i=$(($i + 1))
done
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}
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function network_interfaces_add_confbr() {
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# ajouter dans le fichier $4(=/etc/network/interfaces) la configuration pour
# le bridge $1, avec la liste des interfaces dans le tableau $2(=ifaces) et
# la liste des configurations des adresses des interfaces dans le tableau
# $3(=confips)
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local -a __niac_ifaces; array_copy __niac_ifaces "${2:-ifaces}"
local -a __niac_confips; array_copy __niac_confips "${3:-confips}"
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local br="$1"
local -a ifaces; array_copy ifaces __niac_ifaces
local -a confips; array_copy confips __niac_confips
local nifile="${4:-$__DEBIAN_NETWORK_INTERFACES}"
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local iface confip
for iface in "${ifaces[@]}"; do
echo >>"$nifile" "
auto $iface
iface $iface inet manual"
done
local found=
for confip in "${confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
if [ "$iface" == "$br" ]; then
found=1
break
fi
done
[ -n "$found" ] || return 1
network_interfaces_add_confip "$br" "$gateway" ipsuffixes "$nifile"
ifaces="${ifaces[*]}"
[ -n "$ifaces" ] || ifaces="none"
echo >>"$nifile" "\
bridge_ports $ifaces
bridge_stp off
bridge_fd 2
bridge_maxwait 0"
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}
function __network_backup() {
local file="$1"
local backup="$file.orig$(date +%Y%m%d)"
[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
}
function network_fix_hostname() {
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local hostname="${1%%.*}"
local modified
[ -f /etc/hostname ] || touch /etc/hostname
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/hostname to $hostname"
elif [ "$(</etc/hostname)" != "$hostname" ]; then
__network_backup /etc/hostname
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if show_debug; then
edebug "Setting /etc/hostname to $hostname"
else
estep /etc/hostname
fi
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echo "$hostname" >/etc/hostname
modified=1
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fi
[ -n "$modified" ]
}
function network_fix_mailname() {
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local host="$1"
local modified
[ -f /etc/mailname ] || touch /etc/mailname
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
uecho "Setting /etc/mailname to $host"
elif [ "$(</etc/mailname)" != "$host" ]; then
__network_backup /etc/mailname
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if show_debug; then
edebug "Setting /etc/mailname to $host"
else
estep /etc/mailname
fi
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echo "$host" >/etc/mailname
modified=1
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fi
[ -n "$modified" ]
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}
function network_fix_exim4() {
local host="$1" oldhost="$2"
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local tmpfile; ac_set_tmpfile tmpfile
local modified
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sed </etc/exim4/update-exim4.conf.conf >"$tmpfile" "
/^dc_other_hostnames=/c\\
dc_other_hostnames='$host'"
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if [ -n "$__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 "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
__network_backup /etc/exim4/update-exim4.conf.conf
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if show_debug; then
edebug "Setting /etc/exim4/update-exim4.conf.conf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/exim4/update-exim4.conf.conf
fi
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cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
update-exim4.conf
modified=1
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fi
ac_clean "$tmpfile"
[ -n "$modified" ]
}
function network_fix_postfix() {
local host="$1" oldhost="$2"
local tmpfile; ac_set_tmpfile tmpfile
local modified
awkrun </etc/postfix/main.cf >"$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 "$tmpfile" /etc/postfix/main.cf; then
__network_backup /etc/postfix/main.cf
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if show_debug; then
edebug "Setting /etc/postfix/main.cf to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/postfix/main.cf
fi
cat "$tmpfile" >/etc/postfix/main.cf
modified=1
fi
ac_clean "$tmpfile"
[ -n "$modified" ]
}
function network_fix_hosts() {
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local host="$1" hostname="${1%%.*}"; local shost="${host//./\\.}"
local ip="$2"; local sip="${ip//./\\.}"
local oldhost="$3" oldhostname="${3%%.*}"; soldhost="${host//./\\.}"
local tmpfile; ac_set_tmpfile tmpfile
local modified
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awkrun </etc/hosts >"$tmpfile" \
host="$host" hostname="$hostname" \
ip="$ip" \
oldhost="$oldhost" oldhostname="$oldhostname" \
'
/^[^# \t]/ {
gsub("[ \\t]+" host "[ \\t]*", " ")
gsub("[ \\t]+" hostname "[ \\t]*", " ")
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gsub("[ \\t]+" oldhost "[ \\t]*", " ")
gsub("[ \\t]+" oldhostname "[ \\t]*", " ")
if ($0 ~ /^[^ \t]+[ \t]*$/) next
gsub(/[ \t]*$/, "")
}
{ print }'
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if quietgrep "^$sip[ $TAB]\\+$shost[ $TAB]\\+$hostname" "$tmpfile"; then
sed -i "\
s/\$/ /
/^[ $TAB]$oldhost[ $TAB]/d
/^[ $TAB]$oldhostname[ $TAB]/d
s/ \$//
" "$tmpfile"
fi
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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if show_debug; then
edebug "Setting /etc/hosts to:"
cat "$tmpfile" | sed 's/^/ /g' 1>&2
else
estep /etc/hosts
fi
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cat "$tmpfile" >/etc/hosts
modified=1
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fi
ac_clean "$tmpfile"
[ -n "$modified" ]
}
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
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# 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.
# $6 (oldhost) est le nom d'hôte actuel, avant la modification
# 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:
# [[iface][//gateway]:]address[/suffix],...
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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.
local -a __nc_confips __nc_confbrs
[ -n "$2" ] && array_copy __nc_confips "$2"
[ -n "$3" ] && array_copy __nc_confbrs "$3"
local host="$1"
local -a confips; array_copy confips __nc_confips
local -a confbrs; array_copy confbrs __nc_confbrs
local mainiface="$4" reset_interfaces="$5" oldhost="$6"
local modified
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network_fix_confs confbrs confips "$mainiface"
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local confbr br; local -a ifaces
local confip iface gateway mainip suffix; local -a ipsuffixes
network_parse_confip "${confips[0]}" iface gateway ipsuffixes
network_parse_ipsuffix "${ipsuffixes[0]}" mainip suffix
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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 gateway ipsuffixes
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array_addu ifaces_with_ips "$iface"
done
for confbr in "${confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
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array_add brifaces "$br"
for iface in "${ifaces[@]}"; do
if array_contains ifaces_with_ips "$iface"; then
eerror "$iface: Impossible de configurer une interface dans un bridge ET avec une adresse IP"
return 1
fi
done
done
# vérifier si une modification est nécessaire
local modify
for confbr in "${confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
if ! network_interfaces_check_confbr "$br" iface; then
modify=1
break
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fi
done
if [ -z "$modify" ]; then
for confip in "${confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
if ! network_interfaces_check_confip "$iface" "$gateway" ipsuffixes; then
modify=1
break
fi
done
fi
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# yes! il faut refaire la configuration
if [ -n "$modify" ]; then
# faire une copie de travail
local interfaces; ac_set_tmpfile interfaces
cat "$__DEBIAN_NETWORK_INTERFACES" >"$interfaces"
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if [ -n "$reset_interfaces" ]; then
echo >"$interfaces" "\
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# 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
"
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fi
# d'abord supprimer l'ancienne configuration
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for confbr in "${confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
network_interfaces_remove_confbr "$br" ifaces "$interfaces"
done
for confip in "${confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
network_interfaces_remove_iface "$iface" "$interfaces"
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done
# puis recréer la configuration
for confbr in "${confbrs[@]}"; do
network_parse_confbr "$confbr" br ifaces
network_interfaces_add_confbr "$br" ifaces confips "$interfaces"
done
for confip in "${confips[@]}"; do
network_parse_confip "$confip" iface gateway ipsuffixes
if ! array_contains brifaces "$iface"; then
network_interfaces_add_confip "$iface" "$gateway" ipsuffixes "$interfaces"
fi
done
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# Fin de traitement
if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
if testdiff "$interfaces" "$__DEBIAN_NETWORK_INTERFACES"; then
uecho "Setting $__DEBIAN_NETWORK_INTERFACES to:"
cat "$interfaces" | sed 's/^/ /g' 1>&2
else
uecho "$__DEBIAN_NETWORK_INTERFACES: pas de modifications"
fi
elif testdiff "$interfaces" "$__DEBIAN_NETWORK_INTERFACES"; then
__network_backup "$__DEBIAN_NETWORK_INTERFACES"
if show_debug; then
edebug "Setting $__DEBIAN_NETWORK_INTERFACES to:"
cat "$interfaces" | sed 's/^/ /g' 1>&2
else
estep "$__DEBIAN_NETWORK_INTERFACES"
fi
cat "$interfaces" >"$__DEBIAN_NETWORK_INTERFACES"
modified=1
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fi
ac_clean "$interfaces"
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fi
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="${mainips[0]}"
fi
network_fix_hostname "$host"
network_fix_mailname "$host"
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network_fix_hosts "$host" "$mainip" "$oldhost"
eend
fi
[ -z "$modified" ] && return 10
return 0
}