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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /tools/testing/selftests/bpf/prog_tests/netns_cookie.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/netns_cookie.c')
-rw-r--r-- | tools/testing/selftests/bpf/prog_tests/netns_cookie.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/netns_cookie.c b/tools/testing/selftests/bpf/prog_tests/netns_cookie.c new file mode 100644 index 000000000..71d8f3ba7 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/netns_cookie.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <test_progs.h> +#include "netns_cookie_prog.skel.h" +#include "network_helpers.h" + +#ifndef SO_NETNS_COOKIE +#define SO_NETNS_COOKIE 71 +#endif + +static int duration; + +void test_netns_cookie(void) +{ + int server_fd = -1, client_fd = -1, cgroup_fd = -1; + int err, val, ret, map, verdict; + struct netns_cookie_prog *skel; + uint64_t cookie_expected_value; + socklen_t vallen = sizeof(cookie_expected_value); + static const char send_msg[] = "message"; + + skel = netns_cookie_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "skel_open")) + return; + + cgroup_fd = test__join_cgroup("/netns_cookie"); + if (CHECK(cgroup_fd < 0, "join_cgroup", "cgroup creation failed\n")) + goto done; + + skel->links.get_netns_cookie_sockops = bpf_program__attach_cgroup( + skel->progs.get_netns_cookie_sockops, cgroup_fd); + if (!ASSERT_OK_PTR(skel->links.get_netns_cookie_sockops, "prog_attach")) + goto done; + + verdict = bpf_program__fd(skel->progs.get_netns_cookie_sk_msg); + map = bpf_map__fd(skel->maps.sock_map); + err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0); + if (!ASSERT_OK(err, "prog_attach")) + goto done; + + server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0); + if (CHECK(server_fd < 0, "start_server", "errno %d\n", errno)) + goto done; + + client_fd = connect_to_fd(server_fd, 0); + if (CHECK(client_fd < 0, "connect_to_fd", "errno %d\n", errno)) + goto done; + + ret = send(client_fd, send_msg, sizeof(send_msg), 0); + if (CHECK(ret != sizeof(send_msg), "send(msg)", "ret:%d\n", ret)) + goto done; + + err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sockops_netns_cookies), + &client_fd, &val); + if (!ASSERT_OK(err, "map_lookup(sockops_netns_cookies)")) + goto done; + + err = getsockopt(client_fd, SOL_SOCKET, SO_NETNS_COOKIE, + &cookie_expected_value, &vallen); + if (!ASSERT_OK(err, "getsockopt")) + goto done; + + ASSERT_EQ(val, cookie_expected_value, "cookie_value"); + + err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sk_msg_netns_cookies), + &client_fd, &val); + if (!ASSERT_OK(err, "map_lookup(sk_msg_netns_cookies)")) + goto done; + + ASSERT_EQ(val, cookie_expected_value, "cookie_value"); + +done: + if (server_fd != -1) + close(server_fd); + if (client_fd != -1) + close(client_fd); + if (cgroup_fd != -1) + close(cgroup_fd); + netns_cookie_prog__destroy(skel); +} |