69 lines
1.9 KiB
C
69 lines
1.9 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 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.o";
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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_get_link_xdp_id(IFINDEX_LO, &prog_id, 0);
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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_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_SKB_MODE);
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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_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_obj_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_set_link_xdp_fd(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE);
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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_get_link_xdp_id(IFINDEX_LO, &prog_id, 0);
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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_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_SKB_MODE);
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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_get_link_xdp_id(IFINDEX_LO, &prog_id, XDP_FLAGS_DRV_MODE);
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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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out:
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bpf_set_link_xdp_fd(IFINDEX_LO, -1, 0);
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out_close:
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bpf_object__close(obj);
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}
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