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core: workaround ipv6 不联网时无法初始化 alpine 环境

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bin456789 2023-09-10 22:23:02 +08:00
parent 87055558b8
commit 30174545b0
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1 changed files with 18 additions and 8 deletions
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26
alpine-network.sh
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@ -48,6 +48,8 @@ get_ipv4_entry && dhcpv4=true || dhcpv4=false
get_ipv6_entry | grep /128 && dhcpv6=true || dhcpv6=false
# 检测是否有 slaac
# 也可以有地址就行，不管是slaac或者dhcpv6
# 因为会在trans里判断
slaac=false
for i in $(seq 10 -1 0); do
echo "waiting slaac for ${i}s"
@ -68,10 +70,9 @@ fi
# 检查 ipv4/ipv6 是否连接联网
ipv4_has_internet=false
ipv6_has_internet=false
for i in $(seq 10); do
is_have_ipv4 && ipv4_test_complete=false || ipv4_test_complete=true
is_have_ipv6 && ipv6_test_complete=false || ipv6_test_complete=true
is_have_ipv4 && ipv4_test_complete=false || ipv4_test_complete=true
is_have_ipv6 && ipv6_test_complete=false || ipv6_test_complete=true
for i in $(seq 5); do
if ! $ipv4_test_complete && nslookup www.qq.com $ipv4_dns1; then
ipv4_has_internet=true
ipv4_test_complete=true
@ -94,11 +95,20 @@ if { $dhcpv4 || $dhcpv6 || $slaac; } && [ ! -e /etc/resolv.conf ]; then
sleep 5
fi
# 如果ipv4/ipv6不联网，则删除该协议的dns
if [ -e /etc/resolv.conf ]; then
if $ipv4_has_internet && ! $ipv6_has_internet; then
# 如果有ipv6地址，但ipv6没网络
# alpine只会用ipv6下载apk，而不用会ipv4下载
# 所以要删除不联网协议的ip和dns
# 甲骨文云管理面板添加ipv6地址然后取消
# 依然会分配ipv6地址，但ipv6没网络
if $ipv4_has_internet && ! $ipv6_has_internet; then
ip -6 addr flush scope global dev eth0
if [ -e /etc/resolv.conf ]; then
sed -i '/^[[:blank:]]*nameserver[[:blank:]].*:/d' /etc/resolv.conf
elif ! $ipv4_has_internet && $ipv6_has_internet; then
fi
elif ! $ipv4_has_internet && $ipv6_has_internet; then
ip -4 addr flush scope global dev eth0
if [ -e /etc/resolv.conf ]; then
sed -i '/^[[:blank:]]*nameserver[[:blank:]].*\./d' /etc/resolv.conf
fi
fi