63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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// 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 test_xdp_attach(void)
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{
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struct bpf_object *obj1, *obj2, *obj3;
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const char *file = "./test_xdp.o";
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int err, fd1, fd2, fd3;
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__u32 duration = 0;
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DECLARE_LIBBPF_OPTS(bpf_xdp_set_link_opts, opts,
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.old_fd = -1);
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err = bpf_prog_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_prog_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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err = bpf_prog_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_set_link_xdp_fd_opts(IFINDEX_LO, fd1, XDP_FLAGS_REPLACE,
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&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_set_link_xdp_fd_opts(IFINDEX_LO, fd2, XDP_FLAGS_REPLACE,
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&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_fd = fd1;
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err = bpf_set_link_xdp_fd_opts(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_set_link_xdp_fd_opts(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_set_link_xdp_fd_opts(IFINDEX_LO, -1, 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_fd = fd2;
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err = bpf_set_link_xdp_fd_opts(IFINDEX_LO, -1, 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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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(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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