diff options
author | Alexei Starovoitov <ast@kernel.org> | 2019-08-01 13:55:53 -0700 |
---|---|---|
committer | Alexei Starovoitov <ast@kernel.org> | 2019-08-01 13:55:53 -0700 |
commit | 02bc2b64940e00cf1e2809600498433f1fbc698a (patch) | |
tree | ea5d70a8c8822f44c1d2bea45adc64769a6167d7 /tools/testing/selftests/bpf/test_flow_dissector.c | |
parent | tools: bpftool: add support for reporting the effective cgroup progs (diff) | |
parent | selftests/bpf: extend sockopt_sk selftest with TCP_CONGESTION use case (diff) | |
download | linux-dev-02bc2b64940e00cf1e2809600498433f1fbc698a.tar.xz linux-dev-02bc2b64940e00cf1e2809600498433f1fbc698a.zip |
Merge branch 'setsockopt-extra-mem'
Stanislav Fomichev says:
====================
Current setsockopt hook is limited to the size of the buffer that
user had supplied. Since we always allocate memory and copy the value
into kernel space, allocate just a little bit more in case BPF
program needs to override input data with a larger value.
The canonical example is TCP_CONGESTION socket option where
input buffer is a string and if user calls it with a short string,
BPF program has no way of extending it.
The tests are extended with TCP_CONGESTION use case.
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/test_flow_dissector.c')
0 files changed, 0 insertions, 0 deletions