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170 lines
5.0 KiB
170 lines
5.0 KiB
6 years ago
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From 17985b2575c10b488e7af2aeef160b41a97b2358 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Mon, 14 Dec 2015 13:10:05 +0100
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Subject: [PATCH] network: fix carrier detection
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rename iface_has_link() to iface_has_carrier() to clarify usage
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Only assign static "wildcard interface" settings, if the interface has a
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carrier.
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If the interface name was specified with a name, do not do carrier
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checking for static configurations.
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(cherry picked from commit df95b1003c8e7564da73de92403013763eb028fe)
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---
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modules.d/40network/ifup.sh | 42 ++++++++++++++++++++-----------------
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modules.d/40network/net-lib.sh | 47 ++++++++++++++++++++++++++----------------
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2 files changed, 52 insertions(+), 37 deletions(-)
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diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
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index 7c06cd86..30551987 100755
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--- a/modules.d/40network/ifup.sh
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+++ b/modules.d/40network/ifup.sh
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@@ -105,7 +105,7 @@ do_dhcp() {
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[ -e /tmp/dhclient.$netif.pid ] && return 0
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- if ! iface_has_link $netif; then
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+ if ! iface_has_carrier $netif; then
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warn "No carrier detected on interface $netif"
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return 1
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fi
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@@ -155,7 +155,10 @@ do_ipv6auto() {
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do_static() {
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strstr $ip '*:*:*' && load_ipv6
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- if ! linkup $netif; then
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+ if [ -z "$dev" ] && ! iface_has_carrier "$netif"; then
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+ warn "No carrier detected on interface $netif"
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+ return 1
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+ elif ! linkup "$netif"; then
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warn "Could not bring interface $netif up!"
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return 1
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fi
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@@ -398,27 +401,28 @@ for p in $(getargs ip=); do
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done
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ret=$?
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- > /tmp/net.${netif}.up
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+ if [ $ret -eq 0 ]; then
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+ > /tmp/net.${netif}.up
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- if [ -e /sys/class/net/${netif}/address ]; then
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- > /tmp/net.$(cat /sys/class/net/${netif}/address).up
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- fi
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+ if [ -e /sys/class/net/${netif}/address ]; then
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+ > /tmp/net.$(cat /sys/class/net/${netif}/address).up
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+ fi
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- case $autoconf in
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- dhcp|on|any|dhcp6)
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+ case $autoconf in
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+ dhcp|on|any|dhcp6)
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;;
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- *)
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- if [ $ret -eq 0 ]; then
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- setup_net $netif
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- source_hook initqueue/online $netif
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- if [ -z "$manualup" ]; then
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- /sbin/netroot $netif
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+ *)
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+ if [ $ret -eq 0 ]; then
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+ setup_net $netif
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+ source_hook initqueue/online $netif
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+ if [ -z "$manualup" ]; then
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+ /sbin/netroot $netif
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+ fi
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fi
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- fi
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- ;;
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- esac
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-
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- exit 0
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+ ;;
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+ esac
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+ exit $ret
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+ fi
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done
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# netif isn't the top stack? Then we should exit here.
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diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh
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index 995d32f6..07ea5709 100755
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--- a/modules.d/40network/net-lib.sh
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+++ b/modules.d/40network/net-lib.sh
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@@ -531,22 +531,20 @@ wait_for_if_up() {
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while [ $cnt -lt $timeout ]; do
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li=$(ip -o link show up dev $1)
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- if ! strstr "$li" "NO-CARRIER"; then
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- if [ -n "$li" ]; then
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- case "$li" in
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- *\<UP*)
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- return 0;;
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- *\<*,UP\>*)
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- return 0;;
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- *\<*,UP,*\>*)
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- return 0;;
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- esac
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- fi
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- if strstr "$li" "LOWER_UP" \
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- && strstr "$li" "state UNKNOWN" \
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- && ! strstr "$li" "DORMANT"; then
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- return 0
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- fi
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+ if [ -n "$li" ]; then
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+ case "$li" in
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+ *\<UP*)
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+ return 0;;
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+ *\<*,UP\>*)
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+ return 0;;
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+ *\<*,UP,*\>*)
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+ return 0;;
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+ esac
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+ fi
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+ if strstr "$li" "LOWER_UP" \
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+ && strstr "$li" "state UNKNOWN" \
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+ && ! strstr "$li" "DORMANT"; then
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+ return 0
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fi
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sleep 0.1
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cnt=$(($cnt+1))
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@@ -614,7 +612,7 @@ hostname() {
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cat /proc/sys/kernel/hostname
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}
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-iface_has_link() {
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+iface_has_carrier() {
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local cnt=0
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local interface="$1" flags=""
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[ -n "$interface" ] || return 2
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@@ -625,14 +623,27 @@ iface_has_link() {
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timeout=$(($timeout*10))
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linkup "$1"
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+
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+ li=$(ip -o link show up dev $1)
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+ strstr "$li" "NO-CARRIER" && _no_carrier_flag=1
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+
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while [ $cnt -lt $timeout ]; do
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- [ "$(cat $interface/carrier)" = 1 ] && return 0
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+ if [ -n "$_no_carrier_flag" ]; then
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+ # NO-CARRIER flag was cleared
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+ strstr "$li" "NO-CARRIER" || return 0
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+ fi
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+ # double check the syscfs carrier flag
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+ [ -e "$interface/carrier" ] && [ "$(cat $interface/carrier)" = 1 ] && return 0
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sleep 0.1
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cnt=$(($cnt+1))
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done
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return 1
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}
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+iface_has_link() {
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+ iface_has_carrier "$@"
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+}
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+
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find_iface_with_link() {
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local iface_path="" iface=""
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for iface_path in /sys/class/net/*; do
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