I am trying to write a code for XDP where a user space program will populate a bpf map and then later the Kernel will look into the map. For creating the map I have added a SEC(".maps") in t...

Not able to understand why the following code fails verifier. I am doing all possible validations in this test function. { if (tcph + 1 > data_end) return XDP_DROP; tcp_len = tcph-...

I have basic question on ebpf behavior when multiple ebpf hooks are loaded(not using chaining) simultaneously in kernel. Are all of those hooks invoked? For example, I loaded my ebpf program which has...

I'm trying, finally, to understand eBPF and maybe use it in an upcoming project. For sake of simplicity I started with reading bcc documentation. In my project I'll need to send some data over network...