1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3
test_l4lb(const char * file)4 static void test_l4lb(const char *file)
5 {
6 unsigned int nr_cpus = bpf_num_possible_cpus();
7 struct vip key = {.protocol = 6};
8 struct vip_meta {
9 __u32 flags;
10 __u32 vip_num;
11 } value = {.vip_num = VIP_NUM};
12 __u32 stats_key = VIP_NUM;
13 struct vip_stats {
14 __u64 bytes;
15 __u64 pkts;
16 } stats[nr_cpus];
17 struct real_definition {
18 union {
19 __be32 dst;
20 __be32 dstv6[4];
21 };
22 __u8 flags;
23 } real_def = {.dst = MAGIC_VAL};
24 __u32 ch_key = 11, real_num = 3;
25 __u32 duration, retval, size;
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
32 err = bpf_prog_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
33 if (CHECK_FAIL(err))
34 return;
35
36 map_fd = bpf_find_map(__func__, obj, "vip_map");
37 if (map_fd < 0)
38 goto out;
39 bpf_map_update_elem(map_fd, &key, &value, 0);
40
41 map_fd = bpf_find_map(__func__, obj, "ch_rings");
42 if (map_fd < 0)
43 goto out;
44 bpf_map_update_elem(map_fd, &ch_key, &real_num, 0);
45
46 map_fd = bpf_find_map(__func__, obj, "reals");
47 if (map_fd < 0)
48 goto out;
49 bpf_map_update_elem(map_fd, &real_num, &real_def, 0);
50
51 err = bpf_prog_test_run(prog_fd, NUM_ITER, &pkt_v4, sizeof(pkt_v4),
52 buf, &size, &retval, &duration);
53 CHECK(err || retval != 7/*TC_ACT_REDIRECT*/ || size != 54 ||
54 *magic != MAGIC_VAL, "ipv4",
55 "err %d errno %d retval %d size %d magic %x\n",
56 err, errno, retval, size, *magic);
57
58 err = bpf_prog_test_run(prog_fd, NUM_ITER, &pkt_v6, sizeof(pkt_v6),
59 buf, &size, &retval, &duration);
60 CHECK(err || retval != 7/*TC_ACT_REDIRECT*/ || size != 74 ||
61 *magic != MAGIC_VAL, "ipv6",
62 "err %d errno %d retval %d size %d magic %x\n",
63 err, errno, retval, size, *magic);
64
65 map_fd = bpf_find_map(__func__, obj, "stats");
66 if (map_fd < 0)
67 goto out;
68 bpf_map_lookup_elem(map_fd, &stats_key, stats);
69 for (i = 0; i < nr_cpus; i++) {
70 bytes += stats[i].bytes;
71 pkts += stats[i].pkts;
72 }
73 if (CHECK_FAIL(bytes != MAGIC_BYTES * NUM_ITER * 2 ||
74 pkts != NUM_ITER * 2))
75 printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts);
76 out:
77 bpf_object__close(obj);
78 }
79
test_l4lb_all(void)80 void test_l4lb_all(void)
81 {
82 const char *file1 = "./test_l4lb.o";
83 const char *file2 = "./test_l4lb_noinline.o";
84
85 test_l4lb(file1);
86 test_l4lb(file2);
87 }
88