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author | Willem de Bruijn <willemb@google.com> | 2019-03-22 14:32:53 -0400 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2019-03-22 13:52:44 -0700 |
commit | 8142958954d17a31e0ac9e3a9c91103a1c171179 (patch) | |
tree | bf5124afef654cef89cdbfa723703dfff72ff1db /net/core | |
parent | 7255fade7b93e7e84e12f27ae5e8af9cf8b93745 (diff) | |
download | linux-8142958954d17a31e0ac9e3a9c91103a1c171179.tar.bz2 |
selftests/bpf: extend bpf tunnel test with tso
Segmentation offload takes a longer path. Verify that the feature
works with large packets.
The test succeeds if not setting dodgy in bpf_skb_adjust_room, as veth
TSO is permissive.
If not setting SKB_GSO_DODGY, this enables tunneled TSO offload on
supporting NICs.
The feature sets SKB_GSO_DODGY because the caller is untrusted. As a
result the packets traverse through the gso stack at least up to TCP.
And fail the gso_type validation, such as the skb->encapsulation check
in gre_gso_segment and the gso_type checks introduced in commit
418e897e0716 ("gso: validate gso_type on ipip style tunnel").
This will be addressed in a follow-on feature patch. In the meantime,
disable the new gso tests.
Changes v1->v2:
- not all netcat versions support flag '-q', use timeout instead
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions