mirror of
https://github.com/bin456789/reinstall.git
synced 2025-01-19 12:49:14 +08:00
124 lines
3.4 KiB
Bash
124 lines
3.4 KiB
Bash
#!/bin/ash
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# shellcheck shell=dash
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mac_addr=$1
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ipv4_addr=$2
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ipv4_gateway=$3
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ipv6_addr=$4
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ipv6_gateway=$5
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is_in_china=$6
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if $is_in_china; then
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ipv4_dns1='119.29.29.29'
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ipv4_dns2='223.5.5.5'
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ipv6_dns1='2402:4e00::'
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ipv6_dns2='2400:3200::1'
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else
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ipv4_dns1='1.1.1.1'
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ipv4_dns2='8.8.8.8'
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ipv6_dns1='2606:4700:4700::1111'
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ipv6_dns2='2001:4860:4860::8888'
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fi
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is_have_ipv4() {
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ip -4 addr show scope global dev eth0 | grep -q inet
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}
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is_have_ipv6() {
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ip -6 addr show scope global dev eth0 | grep -q inet6
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}
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# 开启 eth0
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ip link set dev eth0 up
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# 等待slaac
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# 有ipv6地址就跳过，不管是slaac或者dhcpv6
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# 因为会在trans里判断
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for i in $(seq 10 -1 0); do
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is_have_ipv6 && break
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echo "waiting slaac for ${i}s"
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sleep 1
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done
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# 记录是否有动态地址
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# 由于还没设置静态ip，所以有条目表示有动态地址
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is_have_ipv4 && dhcpv4=true || dhcpv4=false
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is_have_ipv6 && dhcpv6_or_slaac=true || dhcpv6_or_slaac=false
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# 设置静态地址
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if ! is_have_ipv4 && [ -n "$ipv4_addr" ] && [ -n "$ipv4_gateway" ]; then
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ip -4 addr add "$ipv4_addr" dev eth0
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ip -4 route add default dev eth0 via "$ipv4_gateway" onlink
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fi
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if ! is_have_ipv6 && [ -n "$ipv6_addr" ] && [ -n "$ipv6_gateway" ]; then
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ip -6 addr add "$ipv6_addr" dev eth0
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ip -6 route add default dev eth0 via "$ipv6_gateway" onlink
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fi
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# 检查 ipv4/ipv6 是否连接联网
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ipv4_has_internet=false
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ipv6_has_internet=false
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is_need_test_ipv4() {
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is_have_ipv4 && ! $ipv4_has_internet
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}
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is_need_test_ipv6() {
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is_have_ipv6 && ! $ipv6_has_internet
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}
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echo 'Testing Internet Connection...'
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for i in $(seq 5); do
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{
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if is_need_test_ipv4 && nslookup www.qq.com $ipv4_dns1; then
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ipv4_has_internet=true
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fi
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if is_need_test_ipv6 && nslookup www.qq.com $ipv6_dns1; then
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ipv6_has_internet=true
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fi
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if ! is_need_test_ipv4 && ! is_need_test_ipv6; then
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break
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fi
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sleep 1
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} >/dev/null 2>&1
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done
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# 等待 udhcpc 创建 /etc/resolv.conf
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# 好像只有 dhcpv4 会创建 resolv.conf
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if { $dhcpv4 || $dhcpv6_or_slaac; } && [ ! -e /etc/resolv.conf ]; then
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echo "Waiting for /etc/resolv.conf..."
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sleep 5
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fi
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# 要删除不联网协议的ip，因为
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# 1 甲骨文云管理面板添加ipv6地址然后取消
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# 依然会分配ipv6地址，但ipv6没网络
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# 此时alpine只会用ipv6下载apk，而不用会ipv4下载
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# 2 有ipv4地址但没有ipv4网关的情况(vultr)，aria2会用ipv4下载
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if $ipv4_has_internet && ! $ipv6_has_internet; then
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echo 0 >/proc/sys/net/ipv6/conf/eth0/accept_ra
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ip -6 addr flush scope global dev eth0
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elif ! $ipv4_has_internet && $ipv6_has_internet; then
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ip -4 addr flush scope global dev eth0
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fi
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# 如果联网了，但没获取到默认 DNS，则添加我们的 DNS
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if $ipv4_has_internet && ! grep '\.' /etc/resolv.conf; then
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echo "nameserver $ipv4_dns1" >>/etc/resolv.conf
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echo "nameserver $ipv4_dns2" >>/etc/resolv.conf
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fi
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if $ipv6_has_internet && ! grep ':' /etc/resolv.conf; then
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echo "nameserver $ipv6_dns1" >>/etc/resolv.conf
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echo "nameserver $ipv6_dns2" >>/etc/resolv.conf
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fi
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# 传参给 trans.start
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$dhcpv4 && echo 1 >/dev/dhcpv4 || echo 0 >/dev/dhcpv4
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$is_in_china && echo 1 >/dev/is_in_china || echo 0 >/dev/is_in_china
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echo "$mac_addr" >/dev/mac_addr
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echo "$ipv4_addr" >/dev/ipv4_addr
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echo "$ipv4_gateway" >/dev/ipv4_gateway
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echo "$ipv6_addr" >/dev/ipv6_addr
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echo "$ipv6_gateway" >/dev/ipv6_gateway
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