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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2020 Google LLC.
// Copyright (c) 2018 Facebook
#include <test_progs.h>
#include "socket_cookie_prog.skel.h"
#include "network_helpers.h"
static int duration;
struct socket_cookie {
__u64 cookie_key;
__u32 cookie_value;
};
void test_socket_cookie(void)
{
int server_fd = 0, client_fd = 0, cgroup_fd = 0, err = 0;
socklen_t addr_len = sizeof(struct sockaddr_in6);
struct socket_cookie_prog *skel;
__u32 cookie_expected_value;
struct sockaddr_in6 addr;
struct socket_cookie val;
skel = socket_cookie_prog__open_and_load();
if (!ASSERT_OK_PTR(skel, "skel_open"))
return;
cgroup_fd = test__join_cgroup("/socket_cookie");
if (CHECK(cgroup_fd < 0, "join_cgroup", "cgroup creation failed\n"))
goto out;
skel->links.set_cookie = bpf_program__attach_cgroup(
skel->progs.set_cookie, cgroup_fd);
if (!ASSERT_OK_PTR(skel->links.set_cookie, "prog_attach"))
goto close_cgroup_fd;
skel->links.update_cookie_sockops = bpf_program__attach_cgroup(
skel->progs.update_cookie_sockops, cgroup_fd);
if (!ASSERT_OK_PTR(skel->links.update_cookie_sockops, "prog_attach"))
goto close_cgroup_fd;
skel->links.update_cookie_tracing = bpf_program__attach(
skel->progs.update_cookie_tracing);
if (!ASSERT_OK_PTR(skel->links.update_cookie_tracing, "prog_attach"))
goto close_cgroup_fd;
server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
if (CHECK(server_fd < 0, "start_server", "errno %d\n", errno))
goto close_cgroup_fd;
client_fd = connect_to_fd(server_fd, 0);
if (CHECK(client_fd < 0, "connect_to_fd", "errno %d\n", errno))
goto close_server_fd;
err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.socket_cookies),
&client_fd, &val);
if (!ASSERT_OK(err, "map_lookup(socket_cookies)"))
goto close_client_fd;
err = getsockname(client_fd, (struct sockaddr *)&addr, &addr_len);
if (!ASSERT_OK(err, "getsockname"))
goto close_client_fd;
cookie_expected_value = (ntohs(addr.sin6_port) << 8) | 0xFF;
ASSERT_EQ(val.cookie_value, cookie_expected_value, "cookie_value");
close_client_fd:
close(client_fd);
close_server_fd:
close(server_fd);
close_cgroup_fd:
close(cgroup_fd);
out:
socket_cookie_prog__destroy(skel);
}
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