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| author | Lukas Nykryn <lnykryn@redhat.com> | 2016-06-13 16:35:23 +0200 |
|---|---|---|
| committer | Lukas Nykryn <lnykryn@redhat.com> | 2016-06-13 16:35:33 +0200 |
| commit | c1880449e4a518ca649120e5589e409d26a82550 (patch) | |
| tree | 5af6e30620ccc425e67dc35cd63e173840f74930 /sysconfig | |
| parent | 9c0c0098a35a8d0f4960b1a07ff38701ffce86a9 (diff) | |
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ipv6: wait for all global IPv6 addresses to leave the "tentative" state
Diffstat (limited to 'sysconfig')
| -rwxr-xr-x | sysconfig/network-scripts/ifup-ipv6 | 2 | ||||
| -rw-r--r-- | sysconfig/network-scripts/network-functions-ipv6 | 21 |
2 files changed, 23 insertions, 0 deletions
diff --git a/sysconfig/network-scripts/ifup-ipv6 b/sysconfig/network-scripts/ifup-ipv6 index b31ad11b..8f740344 100755 --- a/sysconfig/network-scripts/ifup-ipv6 +++ b/sysconfig/network-scripts/ifup-ipv6 @@ -305,3 +305,5 @@ if [ "$IPV6TO4INIT" = "yes" ]; then fi fi +#wait for all global IPv6 addresses to leave the "tentative" state +ipv6_wait_tentative $DEVICE diff --git a/sysconfig/network-scripts/network-functions-ipv6 b/sysconfig/network-scripts/network-functions-ipv6 index 394367bb..079a055f 100644 --- a/sysconfig/network-scripts/network-functions-ipv6 +++ b/sysconfig/network-scripts/network-functions-ipv6 @@ -1042,3 +1042,24 @@ ipv6_trigger_radvd() { return 0 } + +#https://www.vaspects.com/2013/12/11/services-dont-bind-to-ipv6-address/ +ipv6_wait_tentative() { + local fn="ipv6_wait_tentative" + local device=$1 + local countdown=30 + + if [ -z "$device" ]; then + net_log $"Missing parameter 'device' (arg 1)" err $fn + return 1 + fi + + [ "$device" = lo ] && return 0 + + while [ ${countdown} -gt 0 -a -n "$(ip -6 addr show dev ${device} scope global tentative)" ]; do + net_log $"Waiting for interface ${device} IPv6 address(es) to leave the \"tentative\" state" info $fn + countdown=$(($countdown - 1)) + sleep 1 + done + return 0 +} |