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When CONFIG_NF_CONNTRACK=m, struct bpf_ct_opts and enum member
BPF_F_CURRENT_NETNS are not exposed. This commit allows building the
xdp_synproxy selftest in such cases. Note that nf_conntrack must be
loaded before running the test if it's compiled as a module.
This commit also allows this selftest to be successfully compiled when
CONFIG_NF_CONNTRACK is disabled.
One unused local variable of type struct bpf_ct_opts is also removed.
Fixes: fb5cd0ce70d4 ("selftests/bpf: Add selftests for raw syncookie helpers")
Reported-by: Yauheni Kaliuta <ykaliuta@redhat.com>
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220708130319.1016294-1-maximmi@nvidia.com
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This commit extends selftests for the new BPF helpers
bpf_tcp_raw_{gen,check}_syncookie_ipv{4,6} to also test the TC BPF
functionality added in the previous commit.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20220615134847.3753567-7-maximmi@nvidia.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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This commit adds selftests for the new BPF helpers:
bpf_tcp_raw_{gen,check}_syncookie_ipv{4,6}.
xdp_synproxy_kern.c is a BPF program that generates SYN cookies on
allowed TCP ports and sends SYNACKs to clients, accelerating synproxy
iptables module.
xdp_synproxy.c is a userspace control application that allows to
configure the following options in runtime: list of allowed ports, MSS,
window scale, TTL.
A selftest is added to prog_tests that leverages the above programs to
test the functionality of the new helpers.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://lore.kernel.org/r/20220615134847.3753567-5-maximmi@nvidia.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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