更新README.md
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README.md
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README.md
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## 简介
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- PacketAdapter 是一个基于 iptables 的数据包过滤,转换/适配工具。
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- PacketAdapter 并不会凭空产生数据包,而是将 iptables 过滤的数据包重新转换/适配后再回注到网络中。
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- PacketAdapter 是一个数据包过滤/转换/适配工具。
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- PacketAdapter 并不会凭空产生数据包,而是将 MRZCPD 上送的数据包重新转换/适配后通过 RAW Socket 回注到管理口。
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- 可用于 Overlay networks 中 Packet encapsulation and decapsulation,屏蔽端到端协议层之间的差异。
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## 应用 -- 实现 GTP Overlay 数据包的解封装
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@@ -15,7 +14,7 @@ PacketAdapter 通过 iptables 将 Firewall 发送的 GTP RST 包进行过滤,
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```
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+-----------+ +-----------+
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| TCP/UDP | | TCP/UDP |
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| ********* | | ********* |
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+-----------+ +-----------+
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| IPv4/IPv6 | | IPv4/IPv6 |
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+-----------+ +-----------+
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@@ -24,7 +23,7 @@ PacketAdapter 通过 iptables 将 Firewall 发送的 GTP RST 包进行过滤,
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| UDP | ==> | |
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+-----------+ | |
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| IPv4/IPv6 | | |
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+-----------+ | |
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+-----------+ | Replace |
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| MAC | | MAC |
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+-----------+ +-----------+
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```
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@@ -33,44 +32,62 @@ PacketAdapter 通过 iptables 将 Firewall 发送的 GTP RST 包进行过滤,
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* /MAC/IPv6 的 first next header 必须为 UDP。
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* 目前不支持 GTP 扩展头。
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## 运行环境
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## 应用 -- 实现 VLAN Overlay 数据包的解封装
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``` shell
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# yum install --downloadonly --downloaddir=./ libnetfilter_queue.x86_64
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# yum install --downloadonly --downloaddir=./ libnetfilter_queue-devel.x86_64
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# 安装 libnetfilter_queue
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yum install -y libnetfilter_queue
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# 清空 iptables
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iptables -F -t nat
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iptables -F -t filter
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iptables -F -t mangle
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iptables -F -t raw
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ip6tables -F -t nat
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ip6tables -F -t filter
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ip6tables -F -t mangle
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ip6tables -F -t raw
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# 增加 iptables
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/usr/sbin/iptables -A OUTPUT -o eno2 -p udp --dport 2152 -j NFQUEUE --queue-num 1
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/usr/sbin/ip6tables -A OUTPUT -o eno2 -p udp --dport 2152 -j NFQUEUE --queue-num 1
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# 删除 iptables
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/usr/sbin/iptables -D OUTPUT -o eno2 -p udp --dport 2152 -j NFQUEUE --queue-num 1
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/usr/sbin/ip6tables -D OUTPUT -o eno2 -p udp --dport 2152 -j NFQUEUE --queue-num 1
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# 调试 iptables
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# /usr/sbin/iptables -A OUTPUT -o eno2 -j LOG
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# /usr/sbin/ip6tables -A OUTPUT -o eno2 -j LOG
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# 启动服务
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systemctl enable packet_adapter
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systemctl start packet_adapter
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```
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+-----------+ +-----------+
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| ********* | | ********* |
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+-----------+ +-----------+
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| IPv4/IPv6 | | IPv4/IPv6 |
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+-----------+ +-----------+
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| VLAN | ==> | |
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+-----------+ | |
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| VLAN | | |
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+-----------+ | Replace |
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| MAC | | MAC |
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+-----------+ +-----------+
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```
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## TODO
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## 应用 -- 实现 MPLS Overlay 数据包的解封装
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```
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+-----------+ +-----------+
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| ********* | | ********* |
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+-----------+ +-----------+
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| IPv4/IPv6 | | IPv4/IPv6 |
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+-----------+ +-----------+
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| MPLS | ==> | |
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+-----------+ | |
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| MPLS | | |
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+-----------+ | Replace |
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| MAC | | MAC |
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+-----------+ +-----------+
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```
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- [x] support service
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- [ ] support filestat
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## 应用 -- 实现 PPPOE Overlay 数据包的解封装
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```
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+-----------+ +-----------+
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| ********* | | ********* |
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+-----------+ +-----------+
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| IPv4/IPv6 | | IPv4/IPv6 |
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+-----------+ +-----------+
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| PPPOE | ==> | |
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+-----------+ | Replace |
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| MAC | | MAC |
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+-----------+ +-----------+
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```
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```
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+-----------+ +-----------+
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| ********* | | ********* |
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+-----------+ +-----------+
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| IPv4/IPv6 | | IPv4/IPv6 |
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+-----------+ +-----------+
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| PPPOE | ==> | |
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+-----------+ | |
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| VLAN | | |
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+-----------+ | Replace |
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| MAC | | MAC |
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+-----------+ +-----------+
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```
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15
platform/test/README.md
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15
platform/test/README.md
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@@ -0,0 +1,15 @@
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# README
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## 配置 IPv6 测试环境
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``` shell
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# config IPv6 address
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/usr/sbin/ip addr add fe80::42:acff:fe11:2/64 dev eth0
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# config IPv6 route
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/usr/sbin/ip -6 route add default dev eth0 via fe80::42:acff:fe11:1
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# config IPv6 neigh
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/usr/sbin/ip -6 neigh flush dev eth0
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/usr/sbin/ip -6 neigh add fe80::42:acff:fe11:1 lladdr aa:aa:bb:bb:cc:cc dev eth0 nud permanent
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```
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BIN
platform/test/inject_packet.pcap
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BIN
platform/test/inject_packet.pcap
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