From: Daniel Borkmann <daniel@iogearbox.net>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>,
Jakub Sitnicki <jakub@cloudflare.com>
Cc: bpf <bpf@vger.kernel.org>, Networking <netdev@vger.kernel.org>,
kernel-team <kernel-team@cloudflare.com>,
Alexei Starovoitov <ast@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Subject: Re: [PATCH bpf-next v5 15/15] selftests/bpf: Tests for BPF_SK_LOOKUP attach point
Date: Tue, 28 Jul 2020 22:47:53 +0200 [thread overview]
Message-ID: <891f94a4-1663-0830-516c-348c965844fe@iogearbox.net> (raw)
In-Reply-To: <CAEf4BzZHf7838t88Ed3Gzp32UFMq2o2zryL3=hjAL4mELzUC+w@mail.gmail.com>
On 7/28/20 10:13 PM, Andrii Nakryiko wrote:
> On Fri, Jul 17, 2020 at 3:36 AM Jakub Sitnicki <jakub@cloudflare.com> wrote:
>>
>> Add tests to test_progs that exercise:
>>
>> - attaching/detaching/querying programs to BPF_SK_LOOKUP hook,
>> - redirecting socket lookup to a socket selected by BPF program,
>> - failing a socket lookup on BPF program's request,
>> - error scenarios for selecting a socket from BPF program,
>> - accessing BPF program context,
>> - attaching and running multiple BPF programs.
>>
>> Run log:
>>
>> bash-5.0# ./test_progs -n 70
>> #70/1 query lookup prog:OK
>> #70/2 TCP IPv4 redir port:OK
>> #70/3 TCP IPv4 redir addr:OK
>> #70/4 TCP IPv4 redir with reuseport:OK
>> #70/5 TCP IPv4 redir skip reuseport:OK
>> #70/6 TCP IPv6 redir port:OK
>> #70/7 TCP IPv6 redir addr:OK
>> #70/8 TCP IPv4->IPv6 redir port:OK
>> #70/9 TCP IPv6 redir with reuseport:OK
>> #70/10 TCP IPv6 redir skip reuseport:OK
>> #70/11 UDP IPv4 redir port:OK
>> #70/12 UDP IPv4 redir addr:OK
>> #70/13 UDP IPv4 redir with reuseport:OK
>> #70/14 UDP IPv4 redir skip reuseport:OK
>> #70/15 UDP IPv6 redir port:OK
>> #70/16 UDP IPv6 redir addr:OK
>> #70/17 UDP IPv4->IPv6 redir port:OK
>> #70/18 UDP IPv6 redir and reuseport:OK
>> #70/19 UDP IPv6 redir skip reuseport:OK
>> #70/20 TCP IPv4 drop on lookup:OK
>> #70/21 TCP IPv6 drop on lookup:OK
>> #70/22 UDP IPv4 drop on lookup:OK
>> #70/23 UDP IPv6 drop on lookup:OK
>> #70/24 TCP IPv4 drop on reuseport:OK
>> #70/25 TCP IPv6 drop on reuseport:OK
>> #70/26 UDP IPv4 drop on reuseport:OK
>> #70/27 TCP IPv6 drop on reuseport:OK
>> #70/28 sk_assign returns EEXIST:OK
>> #70/29 sk_assign honors F_REPLACE:OK
>> #70/30 sk_assign accepts NULL socket:OK
>> #70/31 access ctx->sk:OK
>> #70/32 narrow access to ctx v4:OK
>> #70/33 narrow access to ctx v6:OK
>> #70/34 sk_assign rejects TCP established:OK
>> #70/35 sk_assign rejects UDP connected:OK
>> #70/36 multi prog - pass, pass:OK
>> #70/37 multi prog - drop, drop:OK
>> #70/38 multi prog - pass, drop:OK
>> #70/39 multi prog - drop, pass:OK
>> #70/40 multi prog - pass, redir:OK
>> #70/41 multi prog - redir, pass:OK
>> #70/42 multi prog - drop, redir:OK
>> #70/43 multi prog - redir, drop:OK
>> #70/44 multi prog - redir, redir:OK
>> #70 sk_lookup:OK
>> Summary: 1/44 PASSED, 0 SKIPPED, 0 FAILED
>>
>> Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
>> ---
>>
>
> Hey Jakub!
>
> We are getting this failure in Travis CI when syncing libbpf [0]:
>
> ```
> ip: either "local" is duplicate, or "nodad" is garbage
>
> switch_netns:PASS:unshare 0 nsec
>
> switch_netns:FAIL:system failed
>
> (/home/travis/build/libbpf/libbpf/travis-ci/vmtest/bpf-next/tools/testing/selftests/bpf/prog_tests/sk_lookup.c:1310:
> errno: No such file or directory) system(ip -6 addr add dev lo
> fd00::1/128 nodad)
>
> #73 sk_lookup:FAIL
> ```
Jakub, I'm actually seeing a slightly different one on my test machine with sk_lookup:
# ./test_progs -t sk_lookup
#14 cgroup_skb_sk_lookup:OK
#73/1 query lookup prog:OK
#73/2 TCP IPv4 redir port:OK
#73/3 TCP IPv4 redir addr:OK
#73/4 TCP IPv4 redir with reuseport:OK
#73/5 TCP IPv4 redir skip reuseport:OK
#73/6 TCP IPv6 redir port:OK
#73/7 TCP IPv6 redir addr:OK
#73/8 TCP IPv4->IPv6 redir port:OK
#73/9 TCP IPv6 redir with reuseport:OK
#73/10 TCP IPv6 redir skip reuseport:OK
#73/11 UDP IPv4 redir port:OK
#73/12 UDP IPv4 redir addr:OK
#73/13 UDP IPv4 redir with reuseport:OK
attach_lookup_prog:PASS:open 0 nsec
attach_lookup_prog:PASS:bpf_program__attach_netns 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
update_lookup_map:PASS:bpf_map__fd 0 nsec
update_lookup_map:PASS:bpf_map_update_elem 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
update_lookup_map:PASS:bpf_map__fd 0 nsec
update_lookup_map:PASS:bpf_map_update_elem 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
run_lookup_prog:PASS:getsockname 0 nsec
run_lookup_prog:PASS:connect 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_client:PASS:make_client 0 nsec
send_byte:PASS:send_byte 0 nsec
udp_recv_send:FAIL:recvmsg failed
(/root/bpf-next/tools/testing/selftests/bpf/prog_tests/sk_lookup.c:339: errno: Resource temporarily unavailable) failed to receive
#73/14 UDP IPv4 redir and reuseport with conns:FAIL
#73/15 UDP IPv4 redir skip reuseport:OK
#73/16 UDP IPv6 redir port:OK
#73/17 UDP IPv6 redir addr:OK
#73/18 UDP IPv4->IPv6 redir port:OK
#73/19 UDP IPv6 redir and reuseport:OK
attach_lookup_prog:PASS:open 0 nsec
attach_lookup_prog:PASS:bpf_program__attach_netns 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(IPV6_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
update_lookup_map:PASS:bpf_map__fd 0 nsec
update_lookup_map:PASS:bpf_map_update_elem 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(IPV6_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
update_lookup_map:PASS:bpf_map__fd 0 nsec
update_lookup_map:PASS:bpf_map_update_elem 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_server:PASS:setsockopt(IP_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(IPV6_RECVORIGDSTADDR) 0 nsec
make_server:PASS:setsockopt(SO_REUSEPORT) 0 nsec
make_server:PASS:bind 0 nsec
make_server:PASS:attach_reuseport 0 nsec
run_lookup_prog:PASS:getsockname 0 nsec
run_lookup_prog:PASS:connect 0 nsec
make_socket:PASS:make_address 0 nsec
make_socket:PASS:socket 0 nsec
make_socket:PASS:setsockopt(SO_SNDTIMEO) 0 nsec
make_socket:PASS:setsockopt(SO_RCVTIMEO) 0 nsec
make_client:PASS:make_client 0 nsec
send_byte:PASS:send_byte 0 nsec
udp_recv_send:FAIL:recvmsg failed
(/root/bpf-next/tools/testing/selftests/bpf/prog_tests/sk_lookup.c:339: errno: Resource temporarily unavailable) failed to receive
#73/20 UDP IPv6 redir and reuseport with conns:FAIL
#73/21 UDP IPv6 redir skip reuseport:OK
#73/22 TCP IPv4 drop on lookup:OK
#73/23 TCP IPv6 drop on lookup:OK
#73/24 UDP IPv4 drop on lookup:OK
#73/25 UDP IPv6 drop on lookup:OK
#73/26 TCP IPv4 drop on reuseport:OK
#73/27 TCP IPv6 drop on reuseport:OK
#73/28 UDP IPv4 drop on reuseport:OK
#73/29 TCP IPv6 drop on reuseport:OK
#73/30 sk_assign returns EEXIST:OK
#73/31 sk_assign honors F_REPLACE:OK
#73/32 sk_assign accepts NULL socket:OK
#73/33 access ctx->sk:OK
#73/34 narrow access to ctx v4:OK
#73/35 narrow access to ctx v6:OK
#73/36 sk_assign rejects TCP established:OK
#73/37 sk_assign rejects UDP connected:OK
#73/38 multi prog - pass, pass:OK
#73/39 multi prog - drop, drop:OK
#73/40 multi prog - pass, drop:OK
#73/41 multi prog - drop, pass:OK
#73/42 multi prog - pass, redir:OK
#73/43 multi prog - redir, pass:OK
#73/44 multi prog - drop, redir:OK
#73/45 multi prog - redir, drop:OK
#73/46 multi prog - redir, redir:OK
#73 sk_lookup:FAIL
Summary: 1/44 PASSED, 0 SKIPPED, 3 FAILED
> Can you please help fix it so that it works in a Travis CI environment
> as well? For now I disabled sk_lookup selftests altogether. You can
> try to repro it locally by forking https://github.com/libbpf/libbpf
> and enabling Travis CI for your account. See [1] for the PR that
> disabled sk_lookup.
>
>
> [0] https://travis-ci.com/github/libbpf/libbpf/jobs/365878309#L5408
> [1] https://github.com/libbpf/libbpf/pull/182/commits/78368c2eaed8b0681381fc34d6016c9b5a443be8
>
>
> Thanks for your help!
>
next prev parent reply other threads:[~2020-07-28 20:48 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 10:35 [PATCH bpf-next v5 00/15] Run a BPF program on socket lookup Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 01/15] bpf, netns: Handle multiple link attachments Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 02/15] bpf: Introduce SK_LOOKUP program type with a dedicated attach point Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 03/15] inet: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 04/15] inet: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 05/15] inet6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 06/15] inet6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 07/15] udp: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 08/15] udp: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 09/15] udp6: Extract helper for selecting socket from reuseport group Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 10/15] udp6: Run SK_LOOKUP BPF program on socket lookup Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 11/15] bpf: Sync linux/bpf.h to tools/ Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 12/15] libbpf: Add support for SK_LOOKUP program type Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 13/15] tools/bpftool: Add name mappings for SK_LOOKUP prog and attach type Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 14/15] selftests/bpf: Add verifier tests for bpf_sk_lookup context access Jakub Sitnicki
2020-07-17 10:35 ` [PATCH bpf-next v5 15/15] selftests/bpf: Tests for BPF_SK_LOOKUP attach point Jakub Sitnicki
2020-07-28 20:13 ` Andrii Nakryiko
2020-07-28 20:47 ` Daniel Borkmann [this message]
2020-07-29 8:55 ` Jakub Sitnicki
2020-07-31 0:04 ` Daniel Borkmann
2020-07-29 8:57 ` Jakub Sitnicki
2020-07-30 13:10 ` Jakub Sitnicki
2020-07-30 19:43 ` Andrii Nakryiko
2020-07-17 16:40 ` [PATCH bpf-next v5 00/15] Run a BPF program on socket lookup Lorenz Bauer
2020-07-18 3:25 ` Alexei Starovoitov
2020-08-18 15:49 ` BPF sk_lookup v5 - TCP SYN and UDP 0-len flood benchmarks Jakub Sitnicki
2020-08-18 18:19 ` Alexei Starovoitov
2020-08-20 10:29 ` Jakub Sitnicki
2020-08-20 12:20 ` David Laight
2020-08-20 22:18 ` Alexei Starovoitov
2020-08-21 10:22 ` Jakub Sitnicki
2020-08-24 8:17 ` Paolo Abeni
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