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core: 重构 alpine 网络部分
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bin456789
parent
3bf44504a6
commit
6bf325e905
129
trans.sh
129
trans.sh
@ -220,25 +220,64 @@ clear_previous() {
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} 2>/dev/null || true
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}
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get_netconf() {
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[ -e /dev/$1 ] && cat /dev/$1
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get_virt_to() {
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if [ -z "$_virt" ]; then
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apk add virt-what
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_virt="$(virt-what)"
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apk del virt-what
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fi
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eval "$1='$_virt'"
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}
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is_virt() {
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get_virt_to virt
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[ -n "$virt" ]
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}
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get_ra_to() {
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if [ -z "$_ra" ]; then
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apk add ndisc6
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_ra="$(rdisc6 eth0)"
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apk del ndisc6
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fi
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eval "$1='$_ra'"
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}
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get_netconf_to() {
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case "$1" in
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slaac | dhcpv6 | rdnss) get_ra_to ra ;;
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esac
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# shellcheck disable=SC2154
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case "$1" in
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slaac) echo "$ra" | grep 'Autonomous address conf' | grep Yes && res=1 || res=0 ;;
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dhcpv6) echo "$ra" | grep 'Stateful address conf' | grep Yes && res=1 || res=0 ;;
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rdnss) res=$(echo "$ra" | grep 'Recursive DNS server' | cut -d: -f2- | xargs) ;;
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*) [ -e /dev/$1 ] && res=$(cat /dev/$1) ;;
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esac
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eval "$1='$res'"
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}
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is_dhcpv4() {
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get_netconf_to dhcpv4
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# shellcheck disable=SC2154
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[ "$dhcpv4" = 1 ]
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}
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is_slaac() {
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get_netconf_to slaac
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# shellcheck disable=SC2154
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[ "$slaac" = 1 ]
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}
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is_dhcpv6() {
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get_netconf_to dhcpv6
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# shellcheck disable=SC2154
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[ "$dhcpv6" = 1 ]
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}
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install_alpine() {
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# 添加 virt-what 用到的社区仓库
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add_community_repo
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# 保存默认应用列表
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if [ ! -e /tmp/world.orig ]; then
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cp /etc/apk/world /tmp/world.orig
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fi
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# 如果是 vm 就用 virt 内核
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apk add virt-what
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if [ -n "$(virt-what)" ]; then
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kernel_opt="-k virt"
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fi
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# 网络
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# 坑1 udhcpc下，ip -4 addr 无法知道是否是 dhcp
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# 坑2 udhcpc不支持dhcpv6
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@ -253,25 +292,11 @@ install_alpine() {
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# 2 自带rdnss支持
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# 3 唯一要做的是关闭隐私保护
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# 检测 ipv6
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apk add ndisc6
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is_slaac=false
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is_dhcpv6=false
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if ra=$(rdisc6 eth0); then
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echo "$ra" | cat -n
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echo "$ra" | grep 'Autonomous address conf' | grep Yes && is_slaac=true
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echo "$ra" | grep 'Stateful address conf' | grep Yes && is_dhcpv6=true
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rdnss=$(echo "$ra" | grep 'Recursive DNS server' | cut -d: -f2- | xargs)
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fi
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# 删除临时安装的软件，不然会带到新系统
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# shellcheck disable=SC2046
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apk del $(diff /tmp/world.orig /etc/apk/world | grep '^+' | sed '1d' | sed 's/^+//' | xargs)
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# 安装 dhcpcd
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apk add dhcpcd
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sed -i '/^slaac private/s/^/#/' /etc/dhcpcd.conf
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sed -i '/^#slaac hwaddr/s/^#//' /etc/dhcpcd.conf
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rc-update add networking boot
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# 生成 lo配置 + eth0头部
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cat <<EOF >/etc/network/interfaces
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@ -282,14 +307,13 @@ auto eth0
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EOF
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# 生成 ipv4 配置
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if [ "$(get_netconf dhcpv4)" = 1 ]; then
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# dhcpv4
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if is_dhcpv4; then
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echo "iface eth0 inet dhcp" >>/etc/network/interfaces
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else
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# static
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ipv4_addr=$(get_netconf ipv4_addr)
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ipv4_gateway=$(get_netconf ipv4_gateway)
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get_netconf_to ipv4_addr
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get_netconf_to ipv4_gateway
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if [ -n "$ipv4_addr" ]; then
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# shellcheck disable=SC2154
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cat <<EOF >>/etc/network/interfaces
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iface eth0 inet static
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address $ipv4_addr
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@ -301,20 +325,21 @@ EOF
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# 生成 ipv6 配置
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# slaac 或者 dhcpv6，实测不用写配置
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if false; then
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if $is_slaac; then
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if is_slaac; then
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echo 'iface eth0 inet6 auto' >>/etc/network/interfaces
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fi
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if $is_dhcpv6; then
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if is_dhcpv6; then
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echo 'iface eth0 inet6 dhcp' >>/etc/network/interfaces
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fi
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fi
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# 静态
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if ! $is_slaac && ! $is_dhcpv6; then
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ipv6_addr=$(get_netconf ipv6_addr)
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ipv6_gateway=$(get_netconf ipv6_gateway)
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if ! is_slaac && ! is_dhcpv6; then
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get_netconf_to ipv6_addr
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get_netconf_to ipv6_gateway
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if [ -n "$ipv6_addr" ]; then
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# shellcheck disable=SC2154
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cat <<EOF >>/etc/network/interfaces
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iface eth0 inet6 static
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address $ipv6_addr
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@ -322,6 +347,7 @@ iface eth0 inet6 static
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EOF
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# 如果有rdnss，则删除自己添加的dns，再添加rdnss
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# 也有可能 dhcpcd 会自动设置，但没环境测试
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get_netconf_to rdnss
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if [ -n "$rdnss" ]; then
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sed -i '/^[[:blank:]]*nameserver[[:blank:]].*:/d' /etc/resolv.conf
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echo "nameserver $rdnss" >>/etc/resolv.conf
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@ -329,9 +355,14 @@ EOF
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fi
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fi
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ip addr
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# 显示网络配置
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echo
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ip addr | cat -n
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echo
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echo "$ra" | cat -n
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echo
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cat -n /etc/network/interfaces
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rc-update add networking boot
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echo
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# 设置
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setup-keymap us us
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@ -344,13 +375,23 @@ EOF
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# 但是从initramfs chroot到真正的系统后，是能识别rtc硬件的
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# 所以我们手动改用hwclock修复这个问题
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rc-update del swclock boot || true
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rc-update add hwclock boot || true
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rc-update add hwclock boot
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# 通过 setup-alpine 安装会多启用几个服务
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# https://github.com/alpinelinux/alpine-conf/blob/c5131e9a038b09881d3d44fb35e86851e406c756/setup-alpine.in#L189
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# acpid | default
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# crond | default
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# seedrng | boot
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if [ -e /dev/input/event0 ]; then
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rc-update add acpid
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fi
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rc-update add crond
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rc-update add seedrng boot
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# 如果是 vm 就用 virt 内核
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if is_virt; then
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kernel_opt="-k virt"
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fi
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# 重置为官方仓库配置
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true >/etc/apk/repositories
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