161f8c9c8SFlorent Revest // SPDX-License-Identifier: GPL-2.0
261f8c9c8SFlorent Revest // Copyright (c) 2020 Google LLC.
361f8c9c8SFlorent Revest // Copyright (c) 2018 Facebook
461f8c9c8SFlorent Revest
561f8c9c8SFlorent Revest #include <test_progs.h>
661f8c9c8SFlorent Revest #include "socket_cookie_prog.skel.h"
761f8c9c8SFlorent Revest #include "network_helpers.h"
861f8c9c8SFlorent Revest
961f8c9c8SFlorent Revest static int duration;
1061f8c9c8SFlorent Revest
1161f8c9c8SFlorent Revest struct socket_cookie {
1261f8c9c8SFlorent Revest __u64 cookie_key;
1361f8c9c8SFlorent Revest __u32 cookie_value;
1461f8c9c8SFlorent Revest };
1561f8c9c8SFlorent Revest
test_socket_cookie(void)1661f8c9c8SFlorent Revest void test_socket_cookie(void)
1761f8c9c8SFlorent Revest {
1861f8c9c8SFlorent Revest int server_fd = 0, client_fd = 0, cgroup_fd = 0, err = 0;
1961f8c9c8SFlorent Revest socklen_t addr_len = sizeof(struct sockaddr_in6);
2061f8c9c8SFlorent Revest struct socket_cookie_prog *skel;
2161f8c9c8SFlorent Revest __u32 cookie_expected_value;
2261f8c9c8SFlorent Revest struct sockaddr_in6 addr;
2361f8c9c8SFlorent Revest struct socket_cookie val;
2461f8c9c8SFlorent Revest
2561f8c9c8SFlorent Revest skel = socket_cookie_prog__open_and_load();
2661f8c9c8SFlorent Revest if (!ASSERT_OK_PTR(skel, "skel_open"))
2761f8c9c8SFlorent Revest return;
2861f8c9c8SFlorent Revest
2961f8c9c8SFlorent Revest cgroup_fd = test__join_cgroup("/socket_cookie");
3061f8c9c8SFlorent Revest if (CHECK(cgroup_fd < 0, "join_cgroup", "cgroup creation failed\n"))
3161f8c9c8SFlorent Revest goto out;
3261f8c9c8SFlorent Revest
3361f8c9c8SFlorent Revest skel->links.set_cookie = bpf_program__attach_cgroup(
3461f8c9c8SFlorent Revest skel->progs.set_cookie, cgroup_fd);
3561f8c9c8SFlorent Revest if (!ASSERT_OK_PTR(skel->links.set_cookie, "prog_attach"))
3661f8c9c8SFlorent Revest goto close_cgroup_fd;
3761f8c9c8SFlorent Revest
38*6fdd671bSFlorent Revest skel->links.update_cookie_sockops = bpf_program__attach_cgroup(
39*6fdd671bSFlorent Revest skel->progs.update_cookie_sockops, cgroup_fd);
40*6fdd671bSFlorent Revest if (!ASSERT_OK_PTR(skel->links.update_cookie_sockops, "prog_attach"))
41*6fdd671bSFlorent Revest goto close_cgroup_fd;
42*6fdd671bSFlorent Revest
43*6fdd671bSFlorent Revest skel->links.update_cookie_tracing = bpf_program__attach(
44*6fdd671bSFlorent Revest skel->progs.update_cookie_tracing);
45*6fdd671bSFlorent Revest if (!ASSERT_OK_PTR(skel->links.update_cookie_tracing, "prog_attach"))
4661f8c9c8SFlorent Revest goto close_cgroup_fd;
4761f8c9c8SFlorent Revest
4861f8c9c8SFlorent Revest server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
4961f8c9c8SFlorent Revest if (CHECK(server_fd < 0, "start_server", "errno %d\n", errno))
5061f8c9c8SFlorent Revest goto close_cgroup_fd;
5161f8c9c8SFlorent Revest
5261f8c9c8SFlorent Revest client_fd = connect_to_fd(server_fd, 0);
5361f8c9c8SFlorent Revest if (CHECK(client_fd < 0, "connect_to_fd", "errno %d\n", errno))
5461f8c9c8SFlorent Revest goto close_server_fd;
5561f8c9c8SFlorent Revest
5661f8c9c8SFlorent Revest err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.socket_cookies),
5761f8c9c8SFlorent Revest &client_fd, &val);
5861f8c9c8SFlorent Revest if (!ASSERT_OK(err, "map_lookup(socket_cookies)"))
5961f8c9c8SFlorent Revest goto close_client_fd;
6061f8c9c8SFlorent Revest
6161f8c9c8SFlorent Revest err = getsockname(client_fd, (struct sockaddr *)&addr, &addr_len);
6261f8c9c8SFlorent Revest if (!ASSERT_OK(err, "getsockname"))
6361f8c9c8SFlorent Revest goto close_client_fd;
6461f8c9c8SFlorent Revest
6561f8c9c8SFlorent Revest cookie_expected_value = (ntohs(addr.sin6_port) << 8) | 0xFF;
6661f8c9c8SFlorent Revest ASSERT_EQ(val.cookie_value, cookie_expected_value, "cookie_value");
6761f8c9c8SFlorent Revest
6861f8c9c8SFlorent Revest close_client_fd:
6961f8c9c8SFlorent Revest close(client_fd);
7061f8c9c8SFlorent Revest close_server_fd:
7161f8c9c8SFlorent Revest close(server_fd);
7261f8c9c8SFlorent Revest close_cgroup_fd:
7361f8c9c8SFlorent Revest close(cgroup_fd);
7461f8c9c8SFlorent Revest out:
7561f8c9c8SFlorent Revest socket_cookie_prog__destroy(skel);
7661f8c9c8SFlorent Revest }
77