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fix: address final tutorial portability review

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LinuxDev9002
2026-07-14 04:43:20 -07:00
parent f1974b8f14
commit adc1bd6f1c
3 changed files with 5 additions and 5 deletions
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6
src/41-xdp-tcpdump/xdp-tcpdump.h
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@@ -1,5 +1,5 @@
#ifndef __XDP_TCPDUMP_H
#define __XDP_TCPDUMP_H
#ifndef XDP_TCPDUMP_H_
#define XDP_TCPDUMP_H_
#define MAX_TCP_HEADER_BYTES 60
@@ -8,4 +8,4 @@ struct tcp_event {
unsigned char header[MAX_TCP_HEADER_BYTES];
};
#endif /* __XDP_TCPDUMP_H */
#endif /* XDP_TCPDUMP_H_ */

2
src/42-xdp-loadbalancer/README.md
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@@ -450,7 +450,7 @@ To run the XDP load balancer, execute the following command, specifying the inte
To make XDP work with veth interfaces we need to add a stub eBPF program to the other end of the pair.
```console
clang -target bpf -I/usr/include/$(uname -m)-linux-gnu -o stub.bpf.o -c stub.bpf.c
clang -target bpf -I/usr/include/$(gcc -print-multiarch) -o stub.bpf.o -c stub.bpf.c
sudo ip l set dev veth7 xdp obj ./stub.bpf.o sec .xdp # stub XDP_PASS on the receiving interface
sudo ip netns exec lb ./xdp_lb veth6 10.0.0.2 de:ad:be:ef:00:02 10.0.0.3 de:ad:be:ef:00:03
```

2
src/42-xdp-loadbalancer/README.zh.md
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@@ -449,7 +449,7 @@ sudo ./teardown.sh
要运行 XDP 负载均衡器，执行以下命令，指定接口和后端服务器的 IP 和 MAC 地址。为了让 XDP 在 veth 接口上工作，还需要在 veth 对的另一端挂载一个返回 `XDP_PASS` 的桩程序。
```console
clang -target bpf -I/usr/include/$(uname -m)-linux-gnu -o stub.bpf.o -c stub.bpf.c
clang -target bpf -I/usr/include/$(gcc -print-multiarch) -o stub.bpf.o -c stub.bpf.c
sudo ip l set dev veth7 xdp obj ./stub.bpf.o sec .xdp
sudo ip netns exec lb ./xdp_lb veth6 10.0.0.2 de:ad:be:ef:00:02 10.0.0.3 de:ad:be:ef:00:03
```