diff options
| author |   Stanislav Fomichev <sdf@google.com> | 2019-07-29 14:51:10 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2019-08-01 13:55:52 -0700 |
| commit | 9babe825da769cfbd7080f95e6bddbe98ce6b95d (patch) | |
| tree | a801f1b825ea6f3eef8cdf1a9306984f91426747 /tools/testing/selftests/bpf/progs/sockopt_sk.c | |
| parent | tools: bpftool: add support for reporting the effective cgroup progs (diff) | |
| download | linux-dev-9babe825da769cfbd7080f95e6bddbe98ce6b95d.tar.xz linux-dev-9babe825da769cfbd7080f95e6bddbe98ce6b95d.zip | |
bpf: always allocate at least 16 bytes for setsockopt hook
Since we always allocate memory, allocate just a little bit more
for the BPF program in case it need to override user input with
bigger value. The canonical example is TCP_CONGESTION where
input string might be too small to override (nv -> bbr or cubic).
16 bytes are chosen to match the size of TCP_CA_NAME_MAX and can
be extended in the future if needed.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/sockopt_sk.c')
0 files changed, 0 insertions, 0 deletions