| // SPDX-License-Identifier: GPL-2.0 |
| #include <linux/if_link.h> |
| #include <test_progs.h> |
| |
| #define IFINDEX_LO 1 |
| |
| void serial_test_xdp_info(void) |
| { |
| __u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id; |
| const char *file = "./xdp_dummy.o"; |
| struct bpf_prog_info info = {}; |
| struct bpf_object *obj; |
| int err, prog_fd; |
| |
| /* Get prog_id for XDP_ATTACHED_NONE mode */ |
| |
| err = bpf_get_link_xdp_id(IFINDEX_LO, &prog_id, 0); |
| if (CHECK(err, "get_xdp_none", "errno=%d\n", errno)) |
| return; |
| if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id)) |
| return; |
| |
| err = bpf_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_SKB_MODE); |
| if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno)) |
| return; |
| if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n", |
| prog_id)) |
| return; |
| |
| /* Setup prog */ |
| |
| err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd); |
| if (CHECK_FAIL(err)) |
| return; |
| |
| err = bpf_obj_get_info_by_fd(prog_fd, &info, &len); |
| if (CHECK(err, "get_prog_info", "errno=%d\n", errno)) |
| goto out_close; |
| |
| err = bpf_set_link_xdp_fd(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE); |
| if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno)) |
| goto out_close; |
| |
| /* Get prog_id for single prog mode */ |
| |
| err = bpf_get_link_xdp_id(IFINDEX_LO, &prog_id, 0); |
| if (CHECK(err, "get_xdp", "errno=%d\n", errno)) |
| goto out; |
| if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n")) |
| goto out; |
| |
| err = bpf_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_SKB_MODE); |
| if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno)) |
| goto out; |
| if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n")) |
| goto out; |
| |
| err = bpf_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_DRV_MODE); |
| if (CHECK(err, "get_xdp_drv", "errno=%d\n", errno)) |
| goto out; |
| if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id)) |
| goto out; |
| |
| out: |
| bpf_set_link_xdp_fd(IFINDEX_LO, -1, 0); |
| out_close: |
| bpf_object__close(obj); |
| } |