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-rw-r--r--tools/testing/selftests/bpf/prog_tests/xdp.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp.c b/tools/testing/selftests/bpf/prog_tests/xdp.c
new file mode 100644
index 000000000..48921ff74
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_xdp(void)
+{
+ struct vip key4 = {.protocol = 6, .family = AF_INET};
+ struct vip key6 = {.protocol = 6, .family = AF_INET6};
+ struct iptnl_info value4 = {.family = AF_INET};
+ struct iptnl_info value6 = {.family = AF_INET6};
+ const char *file = "./test_xdp.o";
+ struct bpf_object *obj;
+ char buf[128];
+ struct ipv6hdr *iph6 = (void *)buf + sizeof(struct ethhdr);
+ struct iphdr *iph = (void *)buf + sizeof(struct ethhdr);
+ __u32 duration, retval, size;
+ int err, prog_fd, map_fd;
+
+ err = bpf_prog_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+ if (CHECK_FAIL(err))
+ return;
+
+ map_fd = bpf_find_map(__func__, obj, "vip2tnl");
+ if (map_fd < 0)
+ goto out;
+ bpf_map_update_elem(map_fd, &key4, &value4, 0);
+ bpf_map_update_elem(map_fd, &key6, &value6, 0);
+
+ err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
+ buf, &size, &retval, &duration);
+
+ CHECK(err || retval != XDP_TX || size != 74 ||
+ iph->protocol != IPPROTO_IPIP, "ipv4",
+ "err %d errno %d retval %d size %d\n",
+ err, errno, retval, size);
+
+ err = bpf_prog_test_run(prog_fd, 1, &pkt_v6, sizeof(pkt_v6),
+ buf, &size, &retval, &duration);
+ CHECK(err || retval != XDP_TX || size != 114 ||
+ iph6->nexthdr != IPPROTO_IPV6, "ipv6",
+ "err %d errno %d retval %d size %d\n",
+ err, errno, retval, size);
+out:
+ bpf_object__close(obj);
+}