xdp-tutorial

xdp-tutorial copied to clipboard

for things like websocket which depends on the number of file descriptors, does AF_XDP have file descriptors per connection?

3

for things like websocket which depends on the number of file descriptors, does AF_XDP have file descriptors per connection? sorry was just curious. i've tried out asavie/xdp repo but not...

kolinfluence

with reference here too : https://github.com/xdp-project/xdp-tools/issues/246

kolinfluence

does anyone know how to do crc32 on ipv6hdr->saddr? i cant convert ipv6hdr->saddr to something crc32 can digest. how shld i do this? > tcphdr->dest = bpf_htons(80 + (ipv6hdr->saddr %...

kolinfluence

how do u printout the ipv6hdr? i'm trying to do crc32(ipv6hdr)%cpunum can anyone help? i can buy u a coffee for this ``` bpf_printk("source ip address is %u = %u\n",...

kolinfluence

does anyone know of any slack or discord or telegram group i can ask questions like how to get the number of cpu threads in ebpf for xdp etc?

kolinfluence

need most basic anti-ddos protection feature can i buy u coffees to expand on these area? a) i have created multiple processes for each port to handle incoming requests per...

kolinfluence

Attempt to redirect to lo interface using xdp's bpf_redirect or bpf_redirect.

4

Hi. I redirect tcp(http) packets coming into eth0(NIC) to the lo interface as an example of packet03-redirecting I want to see http as tcpdump in lo but it doesn't work....

Jerry0171

Success with another test case, and migration to 1.0 interface

1

@tohojo @magnus-karlsson I now have success with the test case I have been working on, where user-space code decides whether a flow between source and destination endpoints is to be...

tjcw

Send data with an socket to an port running locally

1

Hi all, I am trying to send data via an socket to an socket sever (running on an port) My current code looks like this now: ``` short SocketCreate(void) {...

Fabian-Ser

Handling packets in user space

2

I now have my eBPF code working the way I want, and I am trying to get the user space code to work. Overall this is an application that I...

tjcw