1 // SPDX-License-Identifier: GPL-2.0 2 #include <test_progs.h> 3 #include <network_helpers.h> 4 5 static void test_l4lb(const char *file) 6 { 7 unsigned int nr_cpus = bpf_num_possible_cpus(); 8 struct vip key = {.protocol = 6}; 9 struct vip_meta { 10 __u32 flags; 11 __u32 vip_num; 12 } value = {.vip_num = VIP_NUM}; 13 __u32 stats_key = VIP_NUM; 14 struct vip_stats { 15 __u64 bytes; 16 __u64 pkts; 17 } stats[nr_cpus]; 18 struct real_definition { 19 union { 20 __be32 dst; 21 __be32 dstv6[4]; 22 }; 23 __u8 flags; 24 } real_def = {.dst = MAGIC_VAL}; 25 __u32 ch_key = 11, real_num = 3; 26 int err, i, prog_fd, map_fd; 27 __u64 bytes = 0, pkts = 0; 28 struct bpf_object *obj; 29 char buf[128]; 30 u32 *magic = (u32 *)buf; 31 LIBBPF_OPTS(bpf_test_run_opts, topts, 32 .data_out = buf, 33 .data_size_out = sizeof(buf), 34 .repeat = NUM_ITER, 35 ); 36 37 err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd); 38 if (CHECK_FAIL(err)) 39 return; 40 41 map_fd = bpf_find_map(__func__, obj, "vip_map"); 42 if (map_fd < 0) 43 goto out; 44 bpf_map_update_elem(map_fd, &key, &value, 0); 45 46 map_fd = bpf_find_map(__func__, obj, "ch_rings"); 47 if (map_fd < 0) 48 goto out; 49 bpf_map_update_elem(map_fd, &ch_key, &real_num, 0); 50 51 map_fd = bpf_find_map(__func__, obj, "reals"); 52 if (map_fd < 0) 53 goto out; 54 bpf_map_update_elem(map_fd, &real_num, &real_def, 0); 55 56 topts.data_in = &pkt_v4; 57 topts.data_size_in = sizeof(pkt_v4); 58 59 err = bpf_prog_test_run_opts(prog_fd, &topts); 60 ASSERT_OK(err, "test_run"); 61 ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv4 test_run retval"); 62 ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out"); 63 ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 magic"); 64 65 topts.data_in = &pkt_v6; 66 topts.data_size_in = sizeof(pkt_v6); 67 topts.data_size_out = sizeof(buf); /* reset out size */ 68 69 err = bpf_prog_test_run_opts(prog_fd, &topts); 70 ASSERT_OK(err, "test_run"); 71 ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv6 test_run retval"); 72 ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out"); 73 ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 magic"); 74 75 map_fd = bpf_find_map(__func__, obj, "stats"); 76 if (map_fd < 0) 77 goto out; 78 bpf_map_lookup_elem(map_fd, &stats_key, stats); 79 for (i = 0; i < nr_cpus; i++) { 80 bytes += stats[i].bytes; 81 pkts += stats[i].pkts; 82 } 83 if (CHECK_FAIL(bytes != MAGIC_BYTES * NUM_ITER * 2 || 84 pkts != NUM_ITER * 2)) 85 printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts); 86 out: 87 bpf_object__close(obj); 88 } 89 90 void test_l4lb_all(void) 91 { 92 if (test__start_subtest("l4lb_inline")) 93 test_l4lb("test_l4lb.bpf.o"); 94 if (test__start_subtest("l4lb_noinline")) 95 test_l4lb("test_l4lb_noinline.bpf.o"); 96 } 97