77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/if_link.h>
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#include <test_progs.h>
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#define IFINDEX_LO 1
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void serial_test_xdp_info(void)
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{
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__u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id;
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const char *file = "./xdp_dummy.bpf.o";
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LIBBPF_OPTS(bpf_xdp_query_opts, opts);
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struct bpf_prog_info info = {};
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struct bpf_object *obj;
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int err, prog_fd;
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/* Get prog_id for XDP_ATTACHED_NONE mode */
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err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
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if (CHECK(err, "get_xdp_none", "errno=%d\n", errno))
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return;
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if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id))
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return;
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err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
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if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno))
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return;
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if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n",
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prog_id))
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return;
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/* Setup prog */
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err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
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if (CHECK_FAIL(err))
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return;
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err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
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if (CHECK(err, "get_prog_info", "errno=%d\n", errno))
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goto out_close;
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err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
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if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno))
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goto out_close;
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/* Get prog_id for single prog mode */
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err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
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if (CHECK(err, "get_xdp", "errno=%d\n", errno))
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goto out;
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if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n"))
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goto out;
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err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
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if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno))
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goto out;
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if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n"))
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goto out;
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err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &prog_id);
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if (CHECK(err, "get_xdp_drv", "errno=%d\n", errno))
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goto out;
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if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id))
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goto out;
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/* Check xdp features supported by lo device */
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opts.feature_flags = ~0;
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err = bpf_xdp_query(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &opts);
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if (!ASSERT_OK(err, "bpf_xdp_query"))
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goto out;
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ASSERT_EQ(opts.feature_flags, 0, "opts.feature_flags");
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out:
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bpf_xdp_detach(IFINDEX_LO, 0, NULL);
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out_close:
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bpf_object__close(obj);
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}
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