99 lines · c
1// SPDX-License-Identifier: GPL-2.02#include <test_progs.h>3#include <network_helpers.h>4 5static 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);86out:87 bpf_object__close(obj);88}89 90void 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 if (test__start_subtest("l4lb_noinline_dynptr"))97 test_l4lb("test_l4lb_noinline_dynptr.bpf.o");98}99