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 __u32 duration, retval, size; 27 int err, i, prog_fd, map_fd; 28 __u64 bytes = 0, pkts = 0; 29 struct bpf_object *obj; 30 char buf[128]; 31 u32 *magic = (u32 *)buf; 32 33 err = bpf_prog_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd); 34 if (CHECK_FAIL(err)) 35 return; 36 37 map_fd = bpf_find_map(__func__, obj, "vip_map"); 38 if (map_fd < 0) 39 goto out; 40 bpf_map_update_elem(map_fd, &key, &value, 0); 41 42 map_fd = bpf_find_map(__func__, obj, "ch_rings"); 43 if (map_fd < 0) 44 goto out; 45 bpf_map_update_elem(map_fd, &ch_key, &real_num, 0); 46 47 map_fd = bpf_find_map(__func__, obj, "reals"); 48 if (map_fd < 0) 49 goto out; 50 bpf_map_update_elem(map_fd, &real_num, &real_def, 0); 51 52 err = bpf_prog_test_run(prog_fd, NUM_ITER, &pkt_v4, sizeof(pkt_v4), 53 buf, &size, &retval, &duration); 54 CHECK(err || retval != 7/*TC_ACT_REDIRECT*/ || size != 54 || 55 *magic != MAGIC_VAL, "ipv4", 56 "err %d errno %d retval %d size %d magic %x\n", 57 err, errno, retval, size, *magic); 58 59 err = bpf_prog_test_run(prog_fd, NUM_ITER, &pkt_v6, sizeof(pkt_v6), 60 buf, &size, &retval, &duration); 61 CHECK(err || retval != 7/*TC_ACT_REDIRECT*/ || size != 74 || 62 *magic != MAGIC_VAL, "ipv6", 63 "err %d errno %d retval %d size %d magic %x\n", 64 err, errno, retval, size, *magic); 65 66 map_fd = bpf_find_map(__func__, obj, "stats"); 67 if (map_fd < 0) 68 goto out; 69 bpf_map_lookup_elem(map_fd, &stats_key, stats); 70 for (i = 0; i < nr_cpus; i++) { 71 bytes += stats[i].bytes; 72 pkts += stats[i].pkts; 73 } 74 if (CHECK_FAIL(bytes != MAGIC_BYTES * NUM_ITER * 2 || 75 pkts != NUM_ITER * 2)) 76 printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts); 77 out: 78 bpf_object__close(obj); 79 } 80 81 void test_l4lb_all(void) 82 { 83 if (test__start_subtest("l4lb_inline")) 84 test_l4lb("test_l4lb.o"); 85 if (test__start_subtest("l4lb_noinline")) 86 test_l4lb("test_l4lb_noinline.o"); 87 } 88