mirror of
https://github.com/sipeed/NanoKVM.git
synced 2026-09-11 00:22:56 -05:00
Update S30eth
This commit is contained in:
BuGu
@@ -1,119 +1,67 @@
|
||||
#!/bin/sh
|
||||
|
||||
. /etc/profile
|
||||
RESERVE_INET="192.168.90.1/22"
|
||||
|
||||
# /boot/eth.nodhcp for example
|
||||
# ipaddr/net gw[optional]
|
||||
# 192.168.0.101/24 192.168.0.1
|
||||
# 192.168.3.116/22
|
||||
clean_line() {
|
||||
echo "$1" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//;s/\r//g'
|
||||
}
|
||||
|
||||
RESERVE_INET="192.168.0.1/24"
|
||||
calc_gw() {
|
||||
addr="$1"
|
||||
netid="$2"
|
||||
IFS=. read a b c d <<EOF
|
||||
$addr
|
||||
EOF
|
||||
ipnum=$(( (a<<24) + (b<<16) + (c<<8) + d ))
|
||||
mask=$(( 0xFFFFFFFF << (32-netid) & 0xFFFFFFFF ))
|
||||
gwnum=$(( (ipnum & mask) | 1 ))
|
||||
echo "$(( (gwnum>>24)&255 )).$(( (gwnum>>16)&255 )).$(( (gwnum>>8)&255 )).$(( gwnum&255 ))"
|
||||
}
|
||||
|
||||
start() {
|
||||
printf "start ethernet: "
|
||||
if [ -e /boot/eth.nodhcp ]
|
||||
then
|
||||
[ -e /boot/eth.nodhcp ] &&
|
||||
cat /boot/eth.nodhcp | while read inet gw
|
||||
do
|
||||
addr=${inet%/*}
|
||||
netid=${inet#*/}
|
||||
[ -z $gw ] &&
|
||||
gw=$( echo $addr| ( IFS='.' read a b c d; echo $((
|
||||
(((((($a<<8)+$b)<<8)+$c)<<8)+$d)
|
||||
& (((1<<$netid)-1)<<(32-$netid))
|
||||
))
|
||||
)) &&
|
||||
gw=$(($gw>>24&0xff)).$(($gw>>16&0xff)).$(($gw>>8&0xff)).$((1+( $gw>>0&0xff )))
|
||||
if [ -e /boot/eth.nodhcp ]; then
|
||||
while IFS= read -r line || [ -n "$line" ]; do
|
||||
line=$(clean_line "$line")
|
||||
[ -z "$line" ] && continue
|
||||
set -- $line
|
||||
inet="$1"
|
||||
gw="$2"
|
||||
[ -z "$inet" ] && continue
|
||||
addr=${inet%/*}
|
||||
netid=${inet#*/}
|
||||
[ -z "$gw" ] && gw=$(calc_gw "$addr" "$netid")
|
||||
arping -Dqc2 -Ieth0 "$addr" || continue
|
||||
ip a add "$inet" brd + dev eth0
|
||||
ip r add default via "$gw" dev eth0
|
||||
echo -e "nameserver $gw" >> /etc/resolv.conf
|
||||
break
|
||||
done < /boot/eth.nodhcp
|
||||
|
||||
arping -Dqc2 -Ieth0 $addr || continue
|
||||
ip a add $inet brd + dev eth0
|
||||
ip r add default via $gw dev eth0
|
||||
cp -f /etc/resolv.conf /etc/resolv.conf.old
|
||||
cat > /etc/resolv.conf << EOF
|
||||
nameserver $gw
|
||||
nameserver 8.8.4.4
|
||||
nameserver 8.8.8.8
|
||||
nameserver 114.114.114.114
|
||||
nameserver 119.29.29.29
|
||||
nameserver 223.5.5.5
|
||||
EOF
|
||||
break
|
||||
done &&
|
||||
ip a show dev eth0|grep inet || (
|
||||
udhcpc -i eth0 -t 3 -T 1 -A 5 -b -p /run/udhcpc.eth0.pid &>/dev/null
|
||||
ip a show dev eth0|grep inet
|
||||
) || (
|
||||
# failed to apply dynamic addr, need a available static addr to visit the LAN
|
||||
inet=$RESERVE_INET
|
||||
addr=${inet%/*}
|
||||
ip a add $inet brd + dev eth0
|
||||
) || exit 1
|
||||
ip a show dev eth0 | grep inet > /dev/null || {
|
||||
udhcpc -i eth0 -t 3 -T 1 -A 5 -b -p /run/udhcpc.eth0.pid &>/dev/null
|
||||
ip a show dev eth0 | grep inet > /dev/null
|
||||
} || {
|
||||
inet=$RESERVE_INET
|
||||
addr=${inet%/*}
|
||||
ip a add "$inet" brd + dev eth0
|
||||
} || exit 1
|
||||
else
|
||||
(udhcpc -i eth0 -t 10 -T 1 -A 5 -b -p /run/udhcpc.eth0.pid) &
|
||||
udhcpc -i eth0 -t 10 -T 1 -A 5 -b -p /run/udhcpc.eth0.pid &
|
||||
fi
|
||||
|
||||
echo "OK"
|
||||
}
|
||||
|
||||
stop() {
|
||||
[[ ! -e "/run/udhcpc.eth0.pid" ]] && echo "udhcpc is not running..." && exit 1
|
||||
kill `cat /run/udhcpc.eth0.pid`
|
||||
[ ! -e "/run/udhcpc.eth0.pid" ] && exit 1
|
||||
kill "$(cat /run/udhcpc.eth0.pid)"
|
||||
rm /run/udhcpc.eth0.pid
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
start)
|
||||
start
|
||||
;;
|
||||
stop)
|
||||
stop
|
||||
;;
|
||||
restart|reload)
|
||||
$0 stop
|
||||
$0 start
|
||||
;;
|
||||
doc)
|
||||
cat <<EOF
|
||||
If you want to set your own static ip address
|
||||
rather then fetch it by dhcp.
|
||||
Then you need to create a file \`/boot/eth.nodhcp\`,
|
||||
and edit it following the format below:
|
||||
\`addr/netid gw[optional]\` in one line
|
||||
for example (support muti definations, checks with arp):
|
||||
1. 192.168.0.101/24 192.168.0.1
|
||||
2. 192.168.3.116/22
|
||||
Delete this file if you change to use dhcp default.
|
||||
ATTENTION: If all the STATIC address you set in the file is
|
||||
already in use on this LAN checked with arp, then none
|
||||
of them will be yours. And it will trigger dhcp, try to
|
||||
fetch DYNAMIC one. If it's also failed, your address will
|
||||
be the REVERSE one, 192.168.0.1/24. Just to be sure that
|
||||
you can visit your NanoKVM device through eth to fix some
|
||||
problems by ssh, unless you must disassemble it and modify
|
||||
or rewrite the TFCard once again.
|
||||
EOF
|
||||
echo ""
|
||||
cat <<EOF
|
||||
如果您想自行设置静态 ip 地址而不是使用 dhcp 来获取它。
|
||||
|
||||
那么您需要新建一个文件 \`/boot/eth.nodhcp\`，然后按照以下格式编辑它：
|
||||
\`addr/netid gw[optional]\` 在一行内
|
||||
示例（支持多个预设，会通过 arp 检查是否占用）：
|
||||
1. 192.168.0.101/24 192.168.0.1
|
||||
2. 192.168.3.116/22
|
||||
|
||||
如果您想改回默认 dhcp 获取 ip 地址的方式，删除该文件后即可恢复。
|
||||
|
||||
注意：如果您预设的所有静态 ip 地址都被 arp 检测到已占用，则不会成功设置。
|
||||
此时会触发 dhcp 尝试获取 ip 地址，如果仍失败，那么最终会强制设置成
|
||||
192.168.90.1/24。这是为了保证您的 NanoKVM 设备总是能有一个可用的
|
||||
ip 地址，方便您通过局域网 ssh 连接设备进行一些修复，否则您可能需要
|
||||
拆开外壳以手动修改 TF 卡或重新烧卡。
|
||||
|
||||
|
||||
EOF
|
||||
;;
|
||||
*)
|
||||
echo "Usage: $0 {start|stop|restart}"
|
||||
exit 1
|
||||
esac
|
||||
start) start ;;
|
||||
stop) stop ;;
|
||||
restart|reload)
|
||||
$0 stop
|
||||
$0 start
|
||||
;;
|
||||
*) exit 1 ;;
|
||||
esac
|
||||
Reference in New Issue
Block a user