72 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2 3/*4 * Copyright 2020 Google LLC.5 */6 7#include <test_progs.h>8#include <network_helpers.h>9 10void test_load_bytes_relative(void)11{12 int server_fd, cgroup_fd, prog_fd, map_fd, client_fd;13 int err;14 struct bpf_object *obj;15 struct bpf_program *prog;16 struct bpf_map *test_result;17 __u32 duration = 0;18 19 __u32 map_key = 0;20 __u32 map_value = 0;21 22 cgroup_fd = test__join_cgroup("/load_bytes_relative");23 if (CHECK_FAIL(cgroup_fd < 0))24 return;25 26 server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);27 if (CHECK_FAIL(server_fd < 0))28 goto close_cgroup_fd;29 30 err = bpf_prog_test_load("./load_bytes_relative.bpf.o", BPF_PROG_TYPE_CGROUP_SKB,31 &obj, &prog_fd);32 if (CHECK_FAIL(err))33 goto close_server_fd;34 35 test_result = bpf_object__find_map_by_name(obj, "test_result");36 if (CHECK_FAIL(!test_result))37 goto close_bpf_object;38 39 map_fd = bpf_map__fd(test_result);40 if (map_fd < 0)41 goto close_bpf_object;42 43 prog = bpf_object__find_program_by_name(obj, "load_bytes_relative");44 if (CHECK_FAIL(!prog))45 goto close_bpf_object;46 47 err = bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_INET_EGRESS,48 BPF_F_ALLOW_MULTI);49 if (CHECK_FAIL(err))50 goto close_bpf_object;51 52 client_fd = connect_to_fd(server_fd, 0);53 if (CHECK_FAIL(client_fd < 0))54 goto close_bpf_object;55 close(client_fd);56 57 err = bpf_map_lookup_elem(map_fd, &map_key, &map_value);58 if (CHECK_FAIL(err))59 goto close_bpf_object;60 61 CHECK(map_value != 1, "bpf", "bpf program returned failure");62 63close_bpf_object:64 bpf_object__close(obj);65 66close_server_fd:67 close(server_fd);68 69close_cgroup_fd:70 close(cgroup_fd);71}72