96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include "kprobe_multi.skel.h"
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#include "trace_helpers.h"
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#include "bpf/libbpf_internal.h"
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static struct ksyms *ksyms;
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static void kprobe_multi_testmod_check(struct kprobe_multi *skel)
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{
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ASSERT_EQ(skel->bss->kprobe_testmod_test1_result, 1, "kprobe_test1_result");
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ASSERT_EQ(skel->bss->kprobe_testmod_test2_result, 1, "kprobe_test2_result");
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ASSERT_EQ(skel->bss->kprobe_testmod_test3_result, 1, "kprobe_test3_result");
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ASSERT_EQ(skel->bss->kretprobe_testmod_test1_result, 1, "kretprobe_test1_result");
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ASSERT_EQ(skel->bss->kretprobe_testmod_test2_result, 1, "kretprobe_test2_result");
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ASSERT_EQ(skel->bss->kretprobe_testmod_test3_result, 1, "kretprobe_test3_result");
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}
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static void test_testmod_attach_api(struct bpf_kprobe_multi_opts *opts)
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{
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struct kprobe_multi *skel = NULL;
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skel = kprobe_multi__open_and_load();
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if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
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return;
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skel->bss->pid = getpid();
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skel->links.test_kprobe_testmod = bpf_program__attach_kprobe_multi_opts(
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skel->progs.test_kprobe_testmod,
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NULL, opts);
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if (!skel->links.test_kprobe_testmod)
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goto cleanup;
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opts->retprobe = true;
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skel->links.test_kretprobe_testmod = bpf_program__attach_kprobe_multi_opts(
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skel->progs.test_kretprobe_testmod,
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NULL, opts);
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if (!skel->links.test_kretprobe_testmod)
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goto cleanup;
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ASSERT_OK(trigger_module_test_read(1), "trigger_read");
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kprobe_multi_testmod_check(skel);
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cleanup:
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kprobe_multi__destroy(skel);
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}
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static void test_testmod_attach_api_addrs(void)
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{
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LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
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unsigned long long addrs[3];
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addrs[0] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test1");
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ASSERT_NEQ(addrs[0], 0, "ksym_get_addr_local");
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addrs[1] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test2");
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ASSERT_NEQ(addrs[1], 0, "ksym_get_addr_local");
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addrs[2] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test3");
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ASSERT_NEQ(addrs[2], 0, "ksym_get_addr_local");
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opts.addrs = (const unsigned long *) addrs;
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opts.cnt = ARRAY_SIZE(addrs);
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test_testmod_attach_api(&opts);
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}
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static void test_testmod_attach_api_syms(void)
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{
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LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
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const char *syms[3] = {
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"bpf_testmod_fentry_test1",
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"bpf_testmod_fentry_test2",
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"bpf_testmod_fentry_test3",
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};
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opts.syms = syms;
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opts.cnt = ARRAY_SIZE(syms);
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test_testmod_attach_api(&opts);
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}
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void serial_test_kprobe_multi_testmod_test(void)
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{
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ksyms = load_kallsyms_local();
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if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_local"))
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return;
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if (test__start_subtest("testmod_attach_api_syms"))
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test_testmod_attach_api_syms();
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if (test__start_subtest("testmod_attach_api_addrs"))
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test_testmod_attach_api_addrs();
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free_kallsyms_local(ksyms);
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}
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