55 lines · c
1// SPDX-License-Identifier: GPL-2.02#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.bpf.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