samueljaydan

Working on a project using AF_XDP for both monitoring and filtering purposes. I have below code on eBPF side. And also has userspace written by GoLang. With the userspace programming,...

Modifying Packet at Ethernet/IPv4/TCP layers on user space can be done by using AF_XDP and Socket? (It will be used for blocking traffic)

1

I have this on eBPF side. I want to manipulate and modify a packet at the Ethernet/IPv4/TCP layers and then send it to the kernel. This way, for example, I...

Can I use a struct as a map key in XDP?

2

Is it possible to create a struct as shown below in the XDP part and use it as a key, then write to this map in the packet processor part?...

Map load does not work with snprintf or bpf_snprintf. When these lines are removed, map read/write continues.

2

This piece of XDP code is not working (I mean map is not woking for read and write) when snprintf or bpf_snprintf exists. At bpf side, is there any possibility...

There are 2 WAN interfaces. WAN1 => fwmark 1 WAN2 => fwmark 2 lo998 has 2 different IP addresses. 127.0.88.1 will be used for WAN1, and 127.0.88.2 will be used...

There are 2 WAN interfaces. WAN1 => fwmark 1 WAN2 => fwmark 2 lo998 has 2 different IP addresses. 127.0.88.1 will be used for WAN1, and 127.0.88.2 will be used...

**Problem Description:** When upgrading from influx 2.7.1 to the recommended influx 2.7.3 version of Influx after the operating system update (OpenBSD 7.5), the following error started to occur. **Error Log:**...

When I get the codes and use them directly, I run the code with the following iptables rules. Then the pages open very slowly. For example, the speedtest page opens,...

I want to manipulate and modify a packet at the Ethernet/IPv4/TCP layers and send it to the kernel. This way, for example, I can block by sending tcp.rst.