Re: [PATCH bpf-next v2 4/4] bpf: enable bpf_{g,s}etsockopt in BPF_CGROUP_UDP{4,6}_RECVMSG
From: Daniel Borkmann <daniel@iogearbox.net>
Date: 2021-01-29 00:53:40
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netdev
On 1/28/21 12:28 AM, Stanislav Fomichev wrote:
quoted hunk ↗ jump to hunk
Those hooks run as BPF_CGROUP_RUN_SA_PROG_LOCK and operate on a locked socket. Signed-off-by: Stanislav Fomichev <redacted> --- net/core/filter.c | 4 ++++ tools/testing/selftests/bpf/progs/recvmsg4_prog.c | 5 +++++ tools/testing/selftests/bpf/progs/recvmsg6_prog.c | 5 +++++ 3 files changed, 14 insertions(+)diff --git a/net/core/filter.c b/net/core/filter.c index ba436b1d70c2..e15d4741719a 100644 --- a/net/core/filter.c +++ b/net/core/filter.c@@ -7023,6 +7023,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME:@@ -7039,6 +7041,8 @@ sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) case BPF_CGROUP_INET6_BIND: case BPF_CGROUP_INET4_CONNECT: case BPF_CGROUP_INET6_CONNECT: + case BPF_CGROUP_UDP4_RECVMSG: + case BPF_CGROUP_UDP6_RECVMSG: case BPF_CGROUP_UDP4_SENDMSG: case BPF_CGROUP_UDP6_SENDMSG: case BPF_CGROUP_INET4_GETPEERNAME:
Looks good overall, also thanks for adding the test cases! I was about to apply, but noticed one small nit that would be good to get resolved before that. Above you now list all the attach hooks for sock_addr ctx, so we should just remove the whole switch that tests on prog->expected_attach_type altogether in this last commit. Thanks, Daniel