7bd1590d4e
This patch adds a few kernel function bpf_kfunc_call_test*() for the selftest's test_run purpose. They will be allowed for tc_cls prog. The selftest calling the kernel function bpf_kfunc_call_test*() is also added in this patch. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20210325015252.1551395-1-kafai@fb.com
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2021 Facebook */
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#include <test_progs.h>
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#include <network_helpers.h>
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#include "kfunc_call_test.skel.h"
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#include "kfunc_call_test_subprog.skel.h"
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static void test_main(void)
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{
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struct kfunc_call_test *skel;
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int prog_fd, retval, err;
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skel = kfunc_call_test__open_and_load();
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if (!ASSERT_OK_PTR(skel, "skel"))
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return;
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prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
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err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
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NULL, NULL, (__u32 *)&retval, NULL);
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ASSERT_OK(err, "bpf_prog_test_run(test1)");
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ASSERT_EQ(retval, 12, "test1-retval");
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prog_fd = bpf_program__fd(skel->progs.kfunc_call_test2);
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err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
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NULL, NULL, (__u32 *)&retval, NULL);
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ASSERT_OK(err, "bpf_prog_test_run(test2)");
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ASSERT_EQ(retval, 3, "test2-retval");
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kfunc_call_test__destroy(skel);
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}
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static void test_subprog(void)
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{
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struct kfunc_call_test_subprog *skel;
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int prog_fd, retval, err;
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skel = kfunc_call_test_subprog__open_and_load();
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if (!ASSERT_OK_PTR(skel, "skel"))
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return;
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prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
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err = bpf_prog_test_run(prog_fd, 1, &pkt_v4, sizeof(pkt_v4),
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NULL, NULL, (__u32 *)&retval, NULL);
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ASSERT_OK(err, "bpf_prog_test_run(test1)");
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ASSERT_EQ(retval, 10, "test1-retval");
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ASSERT_NEQ(skel->data->active_res, -1, "active_res");
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ASSERT_EQ(skel->data->sk_state, BPF_TCP_CLOSE, "sk_state");
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kfunc_call_test_subprog__destroy(skel);
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}
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void test_kfunc_call(void)
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{
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if (test__start_subtest("main"))
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test_main();
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if (test__start_subtest("subprog"))
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test_subprog();
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}
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