Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2020 Facebook */ #include <sys/types.h> #include <bpf/bpf.h> #include <bpf/libbpf.h> #include "test_progs.h" #include "network_helpers.h" #include "test_sk_storage_trace_itself.skel.h" #include "test_sk_storage_tracing.skel.h" #define LO_ADDR6 "::1" #define TEST_COMM "test_progs" struct sk_stg { __u32 pid; __u32 last_notclose_state; char comm[16]; }; static struct test_sk_storage_tracing *skel; static __u32 duration; static pid_t my_pid; static int check_sk_stg(int sk_fd, __u32 expected_state) { struct sk_stg sk_stg; int err; err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sk_stg_map), &sk_fd, &sk_stg); if (!ASSERT_OK(err, "map_lookup(sk_stg_map)")) return -1; if (!ASSERT_EQ(sk_stg.last_notclose_state, expected_state, "last_notclose_state")) return -1; if (!ASSERT_EQ(sk_stg.pid, my_pid, "pid")) return -1; if (!ASSERT_STREQ(sk_stg.comm, skel->bss->task_comm, "task_comm")) return -1; return 0; } static void do_test(void) { int listen_fd = -1, passive_fd = -1, active_fd = -1, value = 1, err; char abyte; listen_fd = start_server(AF_INET6, SOCK_STREAM, LO_ADDR6, 0, 0); if (CHECK(listen_fd == -1, "start_server", "listen_fd:%d errno:%d\n", listen_fd, errno)) return; active_fd = connect_to_fd(listen_fd, 0); if (CHECK(active_fd == -1, "connect_to_fd", "active_fd:%d errno:%d\n", active_fd, errno)) goto out; err = bpf_map_update_elem(bpf_map__fd(skel->maps.del_sk_stg_map), &active_fd, &value, 0); if (!ASSERT_OK(err, "map_update(del_sk_stg_map)")) goto out; passive_fd = accept(listen_fd, NULL, 0); if (CHECK(passive_fd == -1, "accept", "passive_fd:%d errno:%d\n", passive_fd, errno)) goto out; shutdown(active_fd, SHUT_WR); err = read(passive_fd, &abyte, 1); if (!ASSERT_OK(err, "read(passive_fd)")) goto out; shutdown(passive_fd, SHUT_WR); err = read(active_fd, &abyte, 1); if (!ASSERT_OK(err, "read(active_fd)")) goto out; err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.del_sk_stg_map), &active_fd, &value); if (!ASSERT_ERR(err, "map_lookup(del_sk_stg_map)")) goto out; err = check_sk_stg(listen_fd, BPF_TCP_LISTEN); if (!ASSERT_OK(err, "listen_fd sk_stg")) goto out; err = check_sk_stg(active_fd, BPF_TCP_FIN_WAIT2); if (!ASSERT_OK(err, "active_fd sk_stg")) goto out; err = check_sk_stg(passive_fd, BPF_TCP_LAST_ACK); ASSERT_OK(err, "passive_fd sk_stg"); out: if (active_fd != -1) close(active_fd); if (passive_fd != -1) close(passive_fd); if (listen_fd != -1) close(listen_fd); } void serial_test_sk_storage_tracing(void) { struct test_sk_storage_trace_itself *skel_itself; int err; my_pid = getpid(); skel_itself = test_sk_storage_trace_itself__open_and_load(); if (!ASSERT_NULL(skel_itself, "test_sk_storage_trace_itself")) { test_sk_storage_trace_itself__destroy(skel_itself); return; } skel = test_sk_storage_tracing__open_and_load(); if (!ASSERT_OK_PTR(skel, "test_sk_storage_tracing")) return; err = test_sk_storage_tracing__attach(skel); if (!ASSERT_OK(err, "test_sk_storage_tracing__attach")) { test_sk_storage_tracing__destroy(skel); return; } do_test(); test_sk_storage_tracing__destroy(skel); } |