1// SPDX-License-Identifier: GPL-2.0
 2#include <test_progs.h>
 3
 4static 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);
76out:
77	bpf_object__close(obj);
78}
79
80void 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}