This program uses xdp to simply process gtpu packet.
It is just a toy, but it shows the possibility of using xdp to implement 5g upf.
libbpf
goebpf
sudo apt install libbpfcc-devgo get github.com/dropbox/goebpf
make./main -h Usage of ./main: -elf string clang/llvm compiled binary file (default "upf.elf") -iface string Interface to bind XDP UPF N3/N6 -n4addr string N4 server socket (default "127.0.0.1:8805") -test mock and testing (default true) -verbose Enable verbose mode with debug log messages
Message routing can be forwarded directly through the xdp encapsulation layer 2 Ethernet frame without going through the protocol stack.
What is the number of tables supported by xdp?
