vérifier le fichier /etc/network/interfaces
This commit is contained in:
Jephte CLAIN
parent
aecf51721d
commit
01a837b103
152
ulib/debian
152
ulib/debian
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@ -114,11 +114,18 @@ END {
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__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS=
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function __network_backup() {
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local file="$1"
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local backup="$file.orig$(date +%Y%m%d)"
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[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
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}
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function __network_hostname() {
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local hostname="${1%%.*}"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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uecho "Setting /etc/hostname to $hostname"
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else
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__network_backup /etc/hostname
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echo "$hostname" >/etc/hostname
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fi
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}
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@ -128,6 +135,7 @@ function __network_mailname() {
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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uecho "Setting /etc/mailname to $host"
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else
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__network_backup /etc/mailname
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echo "$host" >/etc/mailname
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fi
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}
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@ -146,9 +154,11 @@ function __network_fix_exim4() {
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uecho "/etc/exim4/update-exim4.conf.conf: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
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__network_backup /etc/exim4/update-exim4.conf.conf
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cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
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update-exim4.conf
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fi
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ac_clean "$tmpfile"
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}
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function __network_hosts() {
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@ -171,11 +181,37 @@ $ip$TAB$host $hostname" "$tmpfile"
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uecho "/etc/hosts: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/hosts; then
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__network_backup /etc/hosts
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cat "$tmpfile" >/etc/hosts
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fi
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ac_clean "$tmpfile"
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}
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function __network_reset_interfaces() {
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local tmpfile; ac_set_tmpfile tmpfile
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echo >"$tmpfile" "\
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# This file describes the network interfaces available on your system
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# and how to activate them. For more information, see interfaces(5).
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# The loopback network interface
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auto lo
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iface lo inet loopback
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"
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if [ -n "$__DEBIAN_NETWORK_DEVEL_SHOW_MODIFS" ]; then
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if testdiff "$tmpfile" /etc/network/interfaces; then
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uecho "Setting /etc/network/interfaces to:"
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cat "$tmpfile" | sed 's/^/ /g' 1>&2
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else
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uecho "/etc/network/interfaces: pas de modifications"
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fi
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elif testdiff "$tmpfile" /etc/network/interfaces; then
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__network_backup /etc/network/interfaces
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cat "$tmpfile" >/etc/network/interfaces
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fi
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ac_clean "$tmpfile"
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}
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function __network_parse_confip() {
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# confip --> iface [ipspecs@] [ipspecs]
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local __npc_tmp
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@ -265,6 +301,8 @@ function __network_resolve_mainiface() {
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}
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function __network_set_mainip() {
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# XXX modifier pour en faire set_confips, qui initialise confips en fonction
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# des adresses actuelles, principale et supplémentaire
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eval "$(ip addr show dev "$1" | awk "BEGIN {
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mainipvar = \"${2:-mainip}\"
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netmaskvar = \"${3:-netmask}\"
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@ -308,7 +346,9 @@ function __network_update_bridge() {
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# bridge, bridge en auto, adresse ip principale statique ou en dhcp,
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# adresses ip supplémentaires), puis si nécessaire, supprimer l'ancienne
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# configuration et créer la nouvelle.
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awkrun -f iface="$1" ipspecs="${2:-ipspecs}[@]" ifaces="${3:-ifaces}[@]" '
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local inf="$1"; shift
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local outf="$1"; shift
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awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" ifaces[@]="${3:-ifaces}" '
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{ print }
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'
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}
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@ -318,9 +358,106 @@ function __network_update_iface() {
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# adresse ip principale statique ou en dhcp, adresses ip supplémentaires),
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# puis si nécessaire, supprimer l'ancienne configuration et créer la
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# nouvelle.
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awkrun -f iface="$1" ipspecs[@] '
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local inf="$1"; shift
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local outf="$1"; shift
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local IPSPECS_SCRIPT='
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method = "dhcp"
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ips_count = ipspecs_count
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array_new(ips)
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array_new(masks)
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array_new(gateways)
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array_new(have_ups)
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array_new(have_downs)
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for (i = 1; i <= ips_count; i++) {
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if (match(ipspecs[i], "^(.*)(/(.*))?(\\+(.*))?$", vs) != 0) {
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ip = vs[1]
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mask = vs[3]
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gateway = vs[5]
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} else {
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ip = ""
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mask = ""
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gateway = ""
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}
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if (i == 1) {
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if (ip == "dhcp") method = "dhcp"
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else method = "static"
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}
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if (mask == "") mask = "255.255.255.0"
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ips[i] = ip
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#masks[i] = mask
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#gateways[i] = gateway
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have_ups[i] = 0
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have_downs[i] = 0
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}
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'
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awkrun <"$inf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
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BEGIN {
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have_hotplug = 0
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have_auto = 0
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have_iface = 0
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have_method = 0 # static ou dhcp
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in_iface = 0
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have_mainip = 0
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'"$IPSPECS_SCRIPT"'
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}
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function indexof_ip(ip, i) {
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for (i = 1; i = ips_count; i++) {
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if (ips[i] == ip) {
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return i
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}
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}
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return 0
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}
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($0 " ") ~ ("^allow-hotplug.* " iface " ") { have_hotplug = 1; next }
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($0 " ") ~ ("^(allow-)?auto.* " iface " ") { have_auto = 1; next }
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$0 ~ ("^iface " iface " inet ") {
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have_iface = 1
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if (($0 " ") ~ (" " method " ")) have_method = 1
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in_iface = 1
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next
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}
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$0 ~ ("^iface ") { in_inface = 0; next; }
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in_iface && $0 ~ "^[ ]*address " mainip { have_mainip = 1 }
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in_iface && $0 ~ "^[ ]*up (/sbin/)?ip addr add " {
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if (match($0, "ip addr add (.*)/.* dev " iface, vs) != 0) {
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i = indexof_ip(vs[1])
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if (i != 0) have_ups[i] = 1
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}
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next
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}
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in_iface && $0 ~ "^[ ]*down (/sbin/)?ip addr del " {
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if (match($0, "ip addr del (.*)/.* dev " iface, vs) != 0) {
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i = indexof_ip(vs[1])
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if (i != 0) have_downs[i] = 1
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}
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next
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}
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END {
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check_hotplug = !have_hotplug
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check_auto = have_auto
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check_iface = have_iface && have_method && have_mainip
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check_supplips = 1
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for (i = 1; i <= ipspecs_count; i++) {
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if (!have_ups[i] || !have_downs[i]) {
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check_supplips = 0
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break
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}
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}
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if (!check_hotplug || !check_auto || !check_iface || !check_supplips) {
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exit 1 # il faut refaire la configuration
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}
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exit 0 # tout est ok
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}
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' && return 1
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# il faut refaire la configuration
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awkrun <"$inf" >"$outf" -f iface="$1" ipspecs[@]="${2:-ipspecs}" '
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{ print }
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'
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return 0
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}
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function network_config() {
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@ -430,8 +567,9 @@ function network_config() {
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fi
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done
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__network_update_bridge "$br" ipspecs ifaces <"$interfaces" >"$workfile"
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cat "$workfile" >"$interfaces"
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if __network_update_bridge "$interfaces" "$workfile" "$br" ipspecs ifaces; then
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cat "$workfile" >"$interfaces"
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fi
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done
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# configurer chaque interface classique
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@ -443,8 +581,9 @@ function network_config() {
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__network_parse_ipspec "${ipspecs[0]}" mainip mask gateway
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fi
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__network_update_iface "$iface" ipspecs <"$interfaces" >"$workfile"
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cat "$workfile" >"$interfaces"
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if __network_update_iface "$interfaces" "$workfile" "$iface" ipspecs; then
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cat "$workfile" >"$interfaces"
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fi
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done
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# Fin de traitement
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@ -456,6 +595,7 @@ function network_config() {
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uecho "/etc/network/interfaces: pas de modifications"
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fi
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elif testdiff "$interfaces" /etc/network/interfaces; then
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__network_backup /etc/network/interfaces
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cat "$interfaces" >/etc/network/interfaces
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fi
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ac_clean "$interfaces" "$workfile"
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