5 Commits

Author SHA1 Message Date
Lorenz Bauer
5792d52df1 selftests/bpf: test references to sock_common
Make sure that returning a struct sock_common * reference invokes
the reference tracking machinery in the verifier.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-03-21 18:59:11 -07:00
Lorenz Bauer
dbaf2877e9 selftests/bpf: allow specifying helper for BPF_SK_LOOKUP
Make the BPF_SK_LOOKUP macro take a helper function, to ease
writing tests for new helpers.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-03-21 18:59:11 -07:00
Martin KaFai Lau
b55aa7b04b bpf: Test ref release issue in bpf_tcp_sock and bpf_sk_fullsock
Adding verifier tests to ensure the ptr returned from bpf_tcp_sock() and
bpf_sk_fullsock() cannot be accessed after bpf_sk_release() is called.
A few of the tests are derived from a reproducer test by Lorenz Bauer.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-03-13 12:04:35 -07:00
Martin KaFai Lau
fb47d1d931 bpf: Add skb->sk, bpf_sk_fullsock and bpf_tcp_sock tests to test_verifer
This patch tests accessing the skb->sk and the new helpers,
bpf_sk_fullsock and bpf_tcp_sock.

The errstr of some existing "reference tracking" tests is changed
with s/bpf_sock/sock/ and s/socket/sock/ where "sock" is from the
verifier's reg_type_str[].

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-02-10 19:46:17 -08:00
Jakub Kicinski
4872922623 selftests: bpf: break up the rest of test_verifier
Break up the rest of test_verifier tests into separate
files.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2019-01-27 21:37:45 -08:00