Re: Facing an error while compiling for bpf using clang
Thank You, I updated clang and now I am able to compile the code in CentOS-7.
I am facing another issue while loading the ebpf code in tc. I am able to run this in Ubuntu-18.04, but the usecase is to run it in CentOS. Can someone please help me out in resolving it.
replicator.o is my objext file and classifier/action are the classifier/action code.
# sudo tc filter add dev enp0s8 parent ffff: bpf obj replicator.o sec classifier flowid ffff:1 \
action bpf obj replicator.o sec action ok
What is "obj"?
Usage: ... bpf ...
[inline]: run bytecode BPF_BYTECODE
[from file]: run bytecode-file FILE
[ police POLICE_SPEC ] [ action ACTION_SPEC ]
[ classid CLASSID ]
Where BPF_BYTECODE := 's,c t f k,c t f k,c t f k,...'
c,t,f,k and s are decimals; s denotes number of 4-tuples
Where FILE points to a file containing the BPF_BYTECODE string