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c93cbdb13f
Because the kfuncs are going through LSM hooks, allowing their use via workqueue callbacks would expose the wrong credentials. This test ensures the kfunc are preventing any use from these contexts. Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Acked-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/bpf/20260813110540.103550-6-mahe.tardy@gmail.com
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2026 Isovalent */
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#include <unistd.h>
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#include "test_progs.h"
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#include "ksock_wq.skel.h"
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#define CALLBACK_WAIT_RETRIES 1000
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#define CALLBACK_WAIT_US 1000
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void test_ksock_wq(void)
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{
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LIBBPF_OPTS(bpf_test_run_opts, opts);
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struct ksock_wq *skel;
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u32 callback_done;
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int err, i;
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skel = ksock_wq__open_and_load();
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if (!ASSERT_OK_PTR(skel, "ksock_wq open and load"))
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return;
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err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.ksock_wq_start),
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&opts);
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if (!ASSERT_OK(err, "run ksock_wq_start"))
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goto out;
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if (!ASSERT_OK(opts.retval, "ksock_wq_start retval"))
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goto out;
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for (i = 0; i < CALLBACK_WAIT_RETRIES; i++) {
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if (__atomic_load_n(&skel->bss->callback_done, __ATOMIC_ACQUIRE))
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break;
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usleep(CALLBACK_WAIT_US);
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}
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callback_done = __atomic_load_n(&skel->bss->callback_done,
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__ATOMIC_ACQUIRE);
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if (!ASSERT_EQ(callback_done, 1, "workqueue callback completed"))
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goto out;
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ASSERT_EQ(skel->bss->create_err, -EOPNOTSUPP,
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"workqueue create rejected");
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out:
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ksock_wq__destroy(skel);
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}
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