mirror of
https://github.com/superconvert/smart-os.git
synced 2024-10-30 15:57:46 +08:00
106 lines
2.9 KiB
Bash
Executable File
106 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
|
||
|
||
#---------------------
|
||
# 初始化公共环境
|
||
#---------------------
|
||
. ./common.sh
|
||
|
||
#---------------------
|
||
# 停掉 NAT
|
||
#---------------------
|
||
stop_nat() {
|
||
# 停掉 tap0
|
||
ip link set tap0 down
|
||
# 断开与网桥链接
|
||
brctl delif br0 tap0
|
||
# 停掉网桥
|
||
ip link set br0 down
|
||
# 删除设备 tap0
|
||
ip tuntap del mode tap tap0
|
||
# 删除网桥
|
||
brctl delbr br0
|
||
# 删除规则链
|
||
iptables -D FORWARD -s 192.168.100.0/24 -j ACCEPT
|
||
iptables -D FORWARD -d 192.168.100.0/24 -j ACCEPT
|
||
iptables -t nat -D POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -j MASQUERADE
|
||
}
|
||
|
||
#---------------------
|
||
# 启动 NAT
|
||
#---------------------
|
||
start_nat() {
|
||
# 创建虚拟网桥
|
||
brctl addbr br0
|
||
# 创建虚拟tap设备
|
||
ip tuntap add dev tap0 mode tap
|
||
# 将tap设备介入网桥
|
||
brctl addif br0 tap0
|
||
# 配置网桥ip
|
||
ip addr add 192.168.100.1/24 dev br0
|
||
ip addr add 192.168.100.2/24 dev tap0
|
||
# 启动桥设备和虚拟网卡设备
|
||
ip link set br0 up
|
||
ip link set tap0 up
|
||
# 开启物理网卡的转发功能:
|
||
sysctl -w net.ipv4.ip_forward=1
|
||
# 配置iptables forward转发规则
|
||
# 在基本环境搭建这一节中，设置了一个本地网络，虚机只能访问host，无法访问外网，如果需要访问外网需要设置SNAT
|
||
iptables -t nat -A POSTROUTING -s 192.168.100.0/24 ! -d 192.168.100.0/24 -j MASQUERADE
|
||
# 如果有防火墙的，特别是centos系统中，记得放开防火墙
|
||
iptables -A FORWARD -s 192.168.100.0/24 -j ACCEPT
|
||
iptables -A FORWARD -d 192.168.100.0/24 -j ACCEPT
|
||
}
|
||
|
||
#----------------------
|
||
# DNS 服务
|
||
#----------------------
|
||
start_dns() {
|
||
|
||
# 准备dnsmasq配置文件,启动dnsmasq服务，这样就能为虚拟机自动分配IP了
|
||
cat<<EOF>dnsmasq.conf
|
||
strict-order
|
||
pid-file=/var/run/dnsmasq.pid
|
||
except-interface=lo
|
||
bind-interfaces
|
||
listen-address=192.168.0.1
|
||
dhcp-range=192.168.100.2,192.168.100.254
|
||
dhcp-no-override
|
||
dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases
|
||
dhcp-lease-max=253
|
||
dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
|
||
addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
|
||
EOF
|
||
/usr/sbin/dnsmasq --conf-file=./dnsmasq.conf
|
||
|
||
}
|
||
|
||
stop_dns() {
|
||
# 杀掉 dhcp 服务
|
||
killall dnsmasq
|
||
}
|
||
|
||
#----------------------------------------------
|
||
# 运行 smart-os 前，先启动这个，这样就能上网了
|
||
#----------------------------------------------
|
||
start_nat
|
||
|
||
#----------------------------------------------------
|
||
#
|
||
# 多硬盘测试 -hdb extra.img
|
||
#
|
||
#----------------------------------------------------
|
||
if [ "${with_sdb}" = false ]; then
|
||
sdb_img=""
|
||
else
|
||
./mk_sdb.sh
|
||
sdb_img="-hdb extra.img"
|
||
fi
|
||
|
||
rm -rf ./qemu.log
|
||
# 启动镜像 网络对应 run_nat.sh 里面的配置
|
||
qemu-system-x86_64 -drive format=raw,file=disk.img ${sdb_img} -netdev tap,id=nd0,ifname=tap0 -device e1000,netdev=nd0
|
||
#qemu-system-x86_64 -serial file:./qemu.log -drive format=raw,file=disk.img -netdev tap,id=nd0,ifname=tap0 -device e1000,netdev=nd0
|
||
|
||
# stop nat
|
||
stop_nat
|