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From 42dd8928a81ba5ec244a5634813285ab6f342480 Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Thu, 30 Jun 2016 11:10:35 +0200
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Subject: [PATCH] network: differ between ipv6 local and global tentative
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For dhcpv6, only a non-tentative scope local address is needed.
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---
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modules.d/40network/dhclient-script.sh | 2 +-
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modules.d/40network/net-lib.sh | 24 +++++++++++++++++++++---
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2 files changed, 22 insertions(+), 4 deletions(-)
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diff --git a/modules.d/40network/dhclient-script.sh b/modules.d/40network/dhclient-script.sh
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index 95538585..f6c77f2f 100755
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--- a/modules.d/40network/dhclient-script.sh
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+++ b/modules.d/40network/dhclient-script.sh
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@@ -149,7 +149,7 @@ case $reason in
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PREINIT6)
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echo "dhcp: PREINIT6 $netif up"
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linkup $netif
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- wait_for_ipv6_dad $netif
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+ wait_for_ipv6_dad_link $netif
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;;
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BOUND)
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diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh
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index b248133d..986c673c 100755
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--- a/modules.d/40network/net-lib.sh
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+++ b/modules.d/40network/net-lib.sh
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@@ -636,16 +636,34 @@ wait_for_route_ok() {
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return 1
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}
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+wait_for_ipv6_dad_link() {
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+ local cnt=0
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+ local timeout="$(getargs rd.net.timeout.ipv6dad=)"
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+ timeout=${timeout:-50}
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+ timeout=$(($timeout*10))
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+
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+ while [ $cnt -lt $timeout ]; do
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+ [ -z "$(ip -6 addr show dev "$1" scope link tentative)" ] \
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+ && return 0
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+ [ -n "$(ip -6 addr show dev "$1" scope link dadfailed)" ] \
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+ && return 1
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+ sleep 0.1
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+ cnt=$(($cnt+1))
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+ done
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+ return 1
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+}
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+
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wait_for_ipv6_dad() {
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local cnt=0
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- local li
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local timeout="$(getargs rd.net.timeout.ipv6dad=)"
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timeout=${timeout:-50}
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timeout=$(($timeout*10))
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while [ $cnt -lt $timeout ]; do
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- li=$(ip -6 addr show dev $1 scope link)
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- strstr "$li" "tentative" || return 0
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+ [ -z "$(ip -6 addr show dev "$1" tentative)" ] \
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+ && return 0
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+ [ -n "$(ip -6 addr show dev "$1" dadfailed)" ] \
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+ && return 1
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sleep 0.1
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cnt=$(($cnt+1))
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done
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