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处理部分商家 slaac / dhcpv6 获取的 ip 无法上网

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bin456789
2024-05-29 21:30:21 +08:00
parent 43f6b19eeb
commit bbb7d0b119
3 changed files with 102 additions and 8 deletions
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52
alpine-network.sh
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@ -31,6 +31,18 @@ else
ipv6_dns2='2001:4860:4860::8888'
fi
get_ipv4_gateway() {
# debian 11 initrd 没有 xargs awk
# debian 12 initrd 没有 xargs
ip -4 route show default | head -1 | cut -d ' ' -f3
}
get_ipv6_gateway() {
# debian 11 initrd 没有 xargs awk
# debian 12 initrd 没有 xargs
ip -6 route show default | head -1 | cut -d ' ' -f3
}
get_first_ipv4_addr() {
# debian 11 initrd 没有 xargs awk
# debian 12 initrd 没有 xargs
@ -41,6 +53,16 @@ get_first_ipv4_addr() {
fi
}
get_first_ipv6_addr() {
# debian 11 initrd 没有 xargs awk
# debian 12 initrd 没有 xargs
if false; then
ip -6 -o addr show scope global dev "$ethx" | head -1 | awk '{print $4}'
else
ip -6 -o addr show scope global dev "$ethx" | head -1 | grep -o '[0-9a-f\:]*/[0-9]*'
fi
}
is_have_ipv4_addr() {
ip -4 addr show scope global dev "$ethx" | grep -q inet
}
@ -150,13 +172,23 @@ flush_ipv4_config() {
ip -4 route flush dev "$ethx"
}
flush_ipv6_config() {
# 是否临时禁用 ra / slaac
if [ "$1" = true ]; then
echo 0 >"/proc/sys/net/ipv6/conf/$ethx/autoconf"
fi
ip -6 addr flush scope global dev "$ethx"
ip -6 route flush dev "$ethx"
}
test_internet
# 处理云电脑 dhcp 获取的地址无法上网
if $dhcpv4 && ! $ipv4_has_internet &&
[ -n "$ipv4_addr" ] && [ -n "$ipv4_gateway" ] &&
! [ "$ipv4_addr" = "$(get_first_ipv4_addr)" ]; then
echo "DHCPv4 can't access Internet. And not match static IPv4."
{ ! [ "$ipv4_addr" = "$(get_first_ipv4_addr)" ] || ! [ "$ipv4_gateway" = "$(get_ipv4_gateway)" ]; }; then
echo "DHCPv4 can't access Internet. And not match static IPv4 Address or Gateway."
flush_ipv4_config
add_missing_ipv4_config
test_internet
@ -165,6 +197,21 @@ if $dhcpv4 && ! $ipv4_has_internet &&
fi
fi
should_disable_ra_slaac=false
# 处理部分商家 slaac / dhcpv6 获取的 ip 无法上网
if $dhcpv6_or_slaac && ! $ipv6_has_internet &&
[ -n "$ipv6_addr" ] && [ -n "$ipv6_gateway" ] &&
{ ! [ "$ipv6_addr" = "$(get_first_ipv6_addr)" ] || ! [ "$ipv6_gateway" = "$(get_ipv6_gateway)" ]; }; then
echo "SLAAC can't access Internet. And not match static IPv6 Address or Gateway."
flush_ipv6_config true
add_missing_ipv6_config
test_internet
if $ipv6_has_internet; then
dhcpv6_or_slaac=false
should_disable_ra_slaac=true
fi
fi
# 等待 udhcpc 创建 /etc/resolv.conf
# 好像只有 dhcpv4 会创建 resolv.conf
if { $dhcpv4 || $dhcpv6_or_slaac; } && [ ! -e /etc/resolv.conf ]; then
@ -196,6 +243,7 @@ fi
# 传参给 trans.start
$dhcpv4 && echo 1 >/dev/dhcpv4 || echo 0 >/dev/dhcpv4
$should_disable_ra_slaac && echo 1 >/dev/should_disable_ra_slaac || echo 0 >/dev/should_disable_ra_slaac
$is_in_china && echo 1 >/dev/is_in_china || echo 0 >/dev/is_in_china
echo "$ethx" >/dev/ethx
echo "$mac_addr" >/dev/mac_addr