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charset="utf-8" This patch adds the redundant BPF MPTCP scheduler test: test_red(). Use sysctl to set net.mptcp.scheduler to use this sched. Add two veth net devices to simulate the multiple addresses case. Use 'ip mptcp endpoint' command to add the new endpoint ADDR_2 to PM netlink. Send data and check bytes_sent of 'ss' output after it to make sure the data has been redundantly sent on both net devices. Signed-off-by: Geliang Tang --- .../testing/selftests/bpf/prog_tests/mptcp.c | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing= /selftests/bpf/prog_tests/mptcp.c index 8b2fe1004323..9f3242c7920a 100644 --- a/tools/testing/selftests/bpf/prog_tests/mptcp.c +++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c @@ -9,6 +9,7 @@ #include "mptcp_bpf_first.skel.h" #include "mptcp_bpf_bkup.skel.h" #include "mptcp_bpf_rr.skel.h" +#include "mptcp_bpf_red.skel.h" =20 #ifndef TCP_CA_NAME_MAX #define TCP_CA_NAME_MAX 16 @@ -381,6 +382,37 @@ static void test_rr(void) mptcp_bpf_rr__destroy(rr_skel); } =20 +static void test_red(void) +{ + struct mptcp_bpf_red *red_skel; + int server_fd, client_fd; + struct bpf_link *link; + + red_skel =3D mptcp_bpf_red__open_and_load(); + if (!ASSERT_OK_PTR(red_skel, "bpf_red__open_and_load")) + return; + + link =3D bpf_map__attach_struct_ops(red_skel->maps.red); + if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) { + mptcp_bpf_red__destroy(red_skel); + return; + } + + sched_init("subflow", "bpf_red"); + server_fd =3D start_mptcp_server(AF_INET, ADDR_1, 0, 0); + client_fd =3D connect_to_fd(server_fd, 0); + + send_data(server_fd, client_fd); + ASSERT_OK(has_bytes_sent(ADDR_1), "has_bytes_sent addr 1"); + ASSERT_OK(has_bytes_sent(ADDR_2), "has_bytes_sent addr 2"); + + close(client_fd); + close(server_fd); + sched_cleanup(); + bpf_link__destroy(link); + mptcp_bpf_red__destroy(red_skel); +} + void test_mptcp(void) { if (test__start_subtest("base")) @@ -391,4 +423,6 @@ void test_mptcp(void) test_bkup(); if (test__start_subtest("rr")) test_rr(); + if (test__start_subtest("red")) + test_red(); } --=20 2.34.1