This small patchset is about avoid infinite recursion in TCP header option callbacks and bpf-tcp-cc callbacks via TCP_NODELAY setsockopt.
v4: - Fix the test case for TCP header option callbacks (Martin and Jiayuan) - Reject TCP_NODELAY in bpf-tcp-cc callbacks (AI and Martin) - Add a test case for bpf-tcp-cc v3: - Remove CONFIG_INET check and add comment (Martin and Jiayuan) - Fix the test case (Martin) https://lore.kernel.org/bpf/[email protected]/ v2: - Reject TCP_NODELAY in bpf_sock_ops_setsockopt() (AI and Martin) https://lore.kernel.org/bpf/[email protected]/ v1: https://lore.kernel.org/bpf/[email protected]/ --- KaFai Wan (4): bpf: Reject TCP_NODELAY in TCP header option callbacks bpf: Reject TCP_NODELAY in bpf-tcp-cc selftests/bpf: Test TCP_NODELAY in TCP hdr opt callbacks selftests/bpf: Verify bpf-tcp-cc rejects TCP_NODELAY include/linux/bpf.h | 1 + net/core/filter.c | 30 +++++++++++++++++++ net/ipv4/bpf_tcp_ca.c | 2 +- .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 4 +++ .../bpf/prog_tests/tcp_hdr_options.c | 6 ++++ tools/testing/selftests/bpf/progs/bpf_cubic.c | 12 ++++++++ .../bpf/progs/test_misc_tcp_hdr_options.c | 15 +++++++++- 7 files changed, 68 insertions(+), 2 deletions(-) -- 2.43.0
