1
2#include <test_progs.h>
3#include <network_helpers.h>
4
5void test_xdp(void)
6{
7 struct vip key4 = {.protocol = 6, .family = AF_INET};
8 struct vip key6 = {.protocol = 6, .family = AF_INET6};
9 struct iptnl_info value4 = {.family = AF_INET};
10 struct iptnl_info value6 = {.family = AF_INET6};
11 const char *file = "./test_xdp.o";
12 struct bpf_object *obj;
13 char buf[128];
14 struct ipv6hdr iph6;
15 struct iphdr iph;
16 int err, prog_fd, map_fd;
17 LIBBPF_OPTS(bpf_test_run_opts, topts,
18 .data_in = &pkt_v4,
19 .data_size_in = sizeof(pkt_v4),
20 .data_out = buf,
21 .data_size_out = sizeof(buf),
22 .repeat = 1,
23 );
24
25 err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
26 if (CHECK_FAIL(err))
27 return;
28
29 map_fd = bpf_find_map(__func__, obj, "vip2tnl");
30 if (map_fd < 0)
31 goto out;
32 bpf_map_update_elem(map_fd, &key4, &value4, 0);
33 bpf_map_update_elem(map_fd, &key6, &value6, 0);
34
35 err = bpf_prog_test_run_opts(prog_fd, &topts);
36 memcpy(&iph, buf + sizeof(struct ethhdr), sizeof(iph));
37 ASSERT_OK(err, "test_run");
38 ASSERT_EQ(topts.retval, XDP_TX, "ipv4 test_run retval");
39 ASSERT_EQ(topts.data_size_out, 74, "ipv4 test_run data_size_out");
40 ASSERT_EQ(iph.protocol, IPPROTO_IPIP, "ipv4 test_run iph.protocol");
41
42 topts.data_in = &pkt_v6;
43 topts.data_size_in = sizeof(pkt_v6);
44 topts.data_size_out = sizeof(buf);
45
46 err = bpf_prog_test_run_opts(prog_fd, &topts);
47 memcpy(&iph6, buf + sizeof(struct ethhdr), sizeof(iph6));
48 ASSERT_OK(err, "test_run");
49 ASSERT_EQ(topts.retval, XDP_TX, "ipv6 test_run retval");
50 ASSERT_EQ(topts.data_size_out, 114, "ipv6 test_run data_size_out");
51 ASSERT_EQ(iph6.nexthdr, IPPROTO_IPV6, "ipv6 test_run iph6.nexthdr");
52out:
53 bpf_object__close(obj);
54}
55
