blaster4385/linux-IllusionX/tools/testing/selftests/bpf/progs/load_bytes_relative.c, branch v6.13Linux kernel with personal config changes for arch linuxhttp://git.tablaster.dev/blaster4385/linux-IllusionX/atom?h=v6.132020-06-11T14:05:56Zselftests/bpf: Add cgroup_skb/egress test for load_bytes_relative2020-06-11T14:05:56ZYiFei Zhuzhuyifei1999@gmail.com2020-06-10T18:41:40Zurn:sha1:bd6fecb9a99cceb949271c1821cfbad2b2db97c6
When cgroup_skb/egress triggers the MAC header is not set. Added a
test that asserts reading MAC header is a -EFAULT but NET header
succeeds. The test result from within the eBPF program is stored in
an 1-element array map that the userspace then reads and asserts on.
Another assertion is added that reading from a large offset, past
the end of packet, returns -EFAULT.
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/9028ccbea4385a620e69c0a104f469ffd655c01e.1591812755.git.zhuyifei@google.com