bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG

2021-01-29T01:09:31Z

Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket. Note that we could remove the switch for prog->expected_attach_type altogether since all current sock_addr attach types are covered. However, it makes sense to keep it as a safe-guard in case new sock_addr attach types are added that might not operate on a locked socket. Therefore, avoid to let this slip through. Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20210127232853.3753823-5-sdf@google.com

selftests/bpf: Rewrite recvmsg{4,6} asm progs to c in test_sock_addr

2021-01-29T01:09:05Z

I'll extend them in the next patch. It's easier to work with C than with asm. Signed-off-by: Stanislav Fomichev Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20210127232853.3753823-4-sdf@google.com

kernel/tools/testing/selftests/bpf/progs/recvmsg4_prog.c, branch linux-6.2.y

bpf: Enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG

selftests/bpf: Rewrite recvmsg{4,6} asm progs to c in test_sock_addr