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
88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#define IFINDEX_LO 1
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#define XDP_FLAGS_REPLACE (1U << 4)
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void serial_test_xdp_attach(void)
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{
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__u32 duration = 0, id1, id2, id0 = 0, len;
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struct bpf_object *obj1, *obj2, *obj3;
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const char *file = "./test_xdp.bpf.o";
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struct bpf_prog_info info = {};
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int err, fd1, fd2, fd3;
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LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
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len = sizeof(info);
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err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj1, &fd1);
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if (CHECK_FAIL(err))
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return;
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err = bpf_obj_get_info_by_fd(fd1, &info, &len);
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if (CHECK_FAIL(err))
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goto out_1;
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id1 = info.id;
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err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj2, &fd2);
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if (CHECK_FAIL(err))
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goto out_1;
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memset(&info, 0, sizeof(info));
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err = bpf_obj_get_info_by_fd(fd2, &info, &len);
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if (CHECK_FAIL(err))
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goto out_2;
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id2 = info.id;
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err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj3, &fd3);
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if (CHECK_FAIL(err))
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goto out_2;
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err = bpf_xdp_attach(IFINDEX_LO, fd1, XDP_FLAGS_REPLACE, &opts);
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if (CHECK(err, "load_ok", "initial load failed"))
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goto out_close;
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err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
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if (CHECK(err || id0 != id1, "id1_check",
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"loaded prog id %u != id1 %u, err %d", id0, id1, err))
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goto out_close;
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err = bpf_xdp_attach(IFINDEX_LO, fd2, XDP_FLAGS_REPLACE, &opts);
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if (CHECK(!err, "load_fail", "load with expected id didn't fail"))
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goto out;
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opts.old_prog_fd = fd1;
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err = bpf_xdp_attach(IFINDEX_LO, fd2, 0, &opts);
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if (CHECK(err, "replace_ok", "replace valid old_fd failed"))
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goto out;
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err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
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if (CHECK(err || id0 != id2, "id2_check",
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"loaded prog id %u != id2 %u, err %d", id0, id2, err))
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goto out_close;
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err = bpf_xdp_attach(IFINDEX_LO, fd3, 0, &opts);
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if (CHECK(!err, "replace_fail", "replace invalid old_fd didn't fail"))
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goto out;
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err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
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if (CHECK(!err, "remove_fail", "remove invalid old_fd didn't fail"))
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goto out;
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opts.old_prog_fd = fd2;
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err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
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if (CHECK(err, "remove_ok", "remove valid old_fd failed"))
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goto out;
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err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
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if (CHECK(err || id0 != 0, "unload_check",
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"loaded prog id %u != 0, err %d", id0, err))
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goto out_close;
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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(obj3);
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out_2:
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bpf_object__close(obj2);
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out_1:
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bpf_object__close(obj1);
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}
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