1eb203f4bSAndrey Ignatov // SPDX-License-Identifier: GPL-2.0
2eb203f4bSAndrey Ignatov #include <linux/if_link.h>
3eb203f4bSAndrey Ignatov #include <test_progs.h>
4eb203f4bSAndrey Ignatov
5eb203f4bSAndrey Ignatov #define IFINDEX_LO 1
6eb203f4bSAndrey Ignatov
serial_test_xdp_info(void)7d3f7b166SYucong Sun void serial_test_xdp_info(void)
8eb203f4bSAndrey Ignatov {
9eb203f4bSAndrey Ignatov __u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id;
10afef88e6SDaniel Müller const char *file = "./xdp_dummy.bpf.o";
1184050074SLorenzo Bianconi LIBBPF_OPTS(bpf_xdp_query_opts, opts);
12eb203f4bSAndrey Ignatov struct bpf_prog_info info = {};
13eb203f4bSAndrey Ignatov struct bpf_object *obj;
14eb203f4bSAndrey Ignatov int err, prog_fd;
15eb203f4bSAndrey Ignatov
16eb203f4bSAndrey Ignatov /* Get prog_id for XDP_ATTACHED_NONE mode */
17eb203f4bSAndrey Ignatov
18e4e284a8SAndrii Nakryiko err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
19eb203f4bSAndrey Ignatov if (CHECK(err, "get_xdp_none", "errno=%d\n", errno))
20eb203f4bSAndrey Ignatov return;
21eb203f4bSAndrey Ignatov if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id))
22eb203f4bSAndrey Ignatov return;
23eb203f4bSAndrey Ignatov
24e4e284a8SAndrii Nakryiko err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
25eb203f4bSAndrey Ignatov if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno))
26eb203f4bSAndrey Ignatov return;
27eb203f4bSAndrey Ignatov if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n",
28eb203f4bSAndrey Ignatov prog_id))
29eb203f4bSAndrey Ignatov return;
30eb203f4bSAndrey Ignatov
31eb203f4bSAndrey Ignatov /* Setup prog */
32eb203f4bSAndrey Ignatov
33cbdb1461SAndrii Nakryiko err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
34eb203f4bSAndrey Ignatov if (CHECK_FAIL(err))
35eb203f4bSAndrey Ignatov return;
36eb203f4bSAndrey Ignatov
37*c5a237a4SIlya Leoshkevich err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
38eb203f4bSAndrey Ignatov if (CHECK(err, "get_prog_info", "errno=%d\n", errno))
39eb203f4bSAndrey Ignatov goto out_close;
40eb203f4bSAndrey Ignatov
41e4e284a8SAndrii Nakryiko err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
42eb203f4bSAndrey Ignatov if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno))
43eb203f4bSAndrey Ignatov goto out_close;
44eb203f4bSAndrey Ignatov
45eb203f4bSAndrey Ignatov /* Get prog_id for single prog mode */
46eb203f4bSAndrey Ignatov
47e4e284a8SAndrii Nakryiko err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
48eb203f4bSAndrey Ignatov if (CHECK(err, "get_xdp", "errno=%d\n", errno))
49eb203f4bSAndrey Ignatov goto out;
50eb203f4bSAndrey Ignatov if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n"))
51eb203f4bSAndrey Ignatov goto out;
52eb203f4bSAndrey Ignatov
53e4e284a8SAndrii Nakryiko err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
54eb203f4bSAndrey Ignatov if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno))
55eb203f4bSAndrey Ignatov goto out;
56eb203f4bSAndrey Ignatov if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n"))
57eb203f4bSAndrey Ignatov goto out;
58eb203f4bSAndrey Ignatov
59e4e284a8SAndrii Nakryiko err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &prog_id);
60eb203f4bSAndrey Ignatov if (CHECK(err, "get_xdp_drv", "errno=%d\n", errno))
61eb203f4bSAndrey Ignatov goto out;
62eb203f4bSAndrey Ignatov if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id))
63eb203f4bSAndrey Ignatov goto out;
64eb203f4bSAndrey Ignatov
6584050074SLorenzo Bianconi /* Check xdp features supported by lo device */
6684050074SLorenzo Bianconi opts.feature_flags = ~0;
6784050074SLorenzo Bianconi err = bpf_xdp_query(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &opts);
6884050074SLorenzo Bianconi if (!ASSERT_OK(err, "bpf_xdp_query"))
6984050074SLorenzo Bianconi goto out;
7084050074SLorenzo Bianconi
7184050074SLorenzo Bianconi ASSERT_EQ(opts.feature_flags, 0, "opts.feature_flags");
72eb203f4bSAndrey Ignatov out:
73e4e284a8SAndrii Nakryiko bpf_xdp_detach(IFINDEX_LO, 0, NULL);
74eb203f4bSAndrey Ignatov out_close:
75eb203f4bSAndrey Ignatov bpf_object__close(obj);
76eb203f4bSAndrey Ignatov }
77