1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/if_link.h>
 3#include <test_progs.h>
 4
 5#define IFINDEX_LO 1
 6
 7void serial_test_xdp_info(void)
 8{
 9	__u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id;
10	const char *file = "./xdp_dummy.bpf.o";
11	struct bpf_prog_info info = {};
12	struct bpf_object *obj;
13	int err, prog_fd;
14
15	/* Get prog_id for XDP_ATTACHED_NONE mode */
16
17	err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
18	if (CHECK(err, "get_xdp_none", "errno=%d\n", errno))
19		return;
20	if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id))
21		return;
22
23	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
24	if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno))
25		return;
26	if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n",
27		  prog_id))
28		return;
29
30	/* Setup prog */
31
32	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
33	if (CHECK_FAIL(err))
34		return;
35
36	err = bpf_obj_get_info_by_fd(prog_fd, &info, &len);
37	if (CHECK(err, "get_prog_info", "errno=%d\n", errno))
38		goto out_close;
39
40	err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
41	if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno))
42		goto out_close;
43
44	/* Get prog_id for single prog mode */
45
46	err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
47	if (CHECK(err, "get_xdp", "errno=%d\n", errno))
48		goto out;
49	if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n"))
50		goto out;
51
52	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
53	if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno))
54		goto out;
55	if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n"))
56		goto out;
57
58	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &prog_id);
59	if (CHECK(err, "get_xdp_drv", "errno=%d\n", errno))
60		goto out;
61	if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id))
62		goto out;
63
64out:
65	bpf_xdp_detach(IFINDEX_LO, 0, NULL);
66out_close:
67	bpf_object__close(obj);
68}