afef88e655
BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
// 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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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_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_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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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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