jslinux-network

最新推荐文章于 2024-03-15 09:30:56 发布

原创最新推荐文章于 2024-03-15 09:30:56 发布 · 206 阅读

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文章标签：

#jslinux #kernel #tun #CONFIG_TUN

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本文详细介绍如何通过JSLinux搭建网络模块，包括git克隆项目、安装依赖、配置虚拟环境及启动WebSocket服务等步骤。此外，还介绍了如何修改配置文件以实现与本地服务器的连接，并对可能出现的问题给出了解决方案。

git clone https://github.com/killinux/jslinux-network

把 jslinux-network 放在apache或者nginx中。


yum install python-virtualenv

virtualenv mysite

source mysite/bin/activate

pip install mod_pywebsocket

cd jslinux-network/websocketstuntap

这里需要tap_wsh.py


python -m mod_pywebsocket.standalone -d . --log-level=info -p 3000

或launch.sh

这时，ifconfig

假设本机IP是192.168.139.85
vim network-websockets.js
第7行改成

tuntapWS_connection = new WebSocket('ws://192.168.139.85:3000/tap', []);

chrome：
http://192.168.137.85/jslinux-network

先点boot
启动后，点connect or reconnect websockets启动websocket
chrome变黄色

这时观察后台launch.sh会建立个链接一个连接
[code="java"]
(mysite)# ./launch.sh
[2016-05-30 10:54:50,203] [INFO] __main__.WebSocketServer: Create socket on: (10, 1, '', '', '')
[2016-05-30 10:54:50,204] [INFO] __main__.WebSocketServer: Create socket on: (2, 1, '', '', '')
[2016-05-30 10:54:50,204] [INFO] __main__.WebSocketServer: Bind on: (10, 1, '', '', '')
[2016-05-30 10:54:50,205] [INFO] __main__.WebSocketServer: Bind on: (2, 1, '', '', '')
[2016-05-30 10:54:50,205] [INFO] __main__.WebSocketServer: Listen on: (10, 1, '', '', '')
[2016-05-30 10:54:50,205] [INFO] __main__.WebSocketServer: Listen on: (2, 1, '', '', '')
[2016-05-30 10:54:50,205] [INFO] __main__.WebSocketServer: Skip by failure: error(98, 'Address already in use')
[2016-05-30 10:56:23,729] [INFO] mod_pywebsocket.handshake: Established (RFC 6455 protocol)
tuntapdevice: websockettuntap
[/code]

ifconfig观察服务器会多个tap设备
[code="java"]
websockettuntap: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.2.1 netmask 255.0.0.0 broadcast 10.255.255.255
inet6 fe80::d894:8ff:fec0:b547 prefixlen 64 scopeid 0x20<link>
ether da:94:08:c0:b5:47 txqueuelen 500 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

#
[/code]

默认IP是10.0.2.1

进入jslinux后
cat /dev/clipboard|sh
生成tap设备

默认的ip是10.0.2.2
ping 10.0.2.1
能ping通表示正常

如果是自己编译的内核
需要注意.config文件一定要多一条
# CONFIG_EQUALIZER is not set
[color=red]CONFIG_TUN=y[/color]

否则jslinux在建立tap设备的时候会说找不到设备的问题

[url]chrome://appcache-internals/[/url]
可以看到浏览器的cache

如果想把120M的镜像放在这里
需要改
jslinux.js里面的


197     //params.hda = { url: "hda%d.bin", block_size: 64, nb_blocks: 912 };
198     params.hda = { url: "hda%d.bin", block_size: 64, nb_blocks: 2000 };

否则会报
attempt to access beyond end of device
的错误