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// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include "test_attach_probe.skel.h"
void test_attach_probe(void)
{
int duration = 0;
struct bpf_link *kprobe_link, *kretprobe_link;
struct bpf_link *uprobe_link, *uretprobe_link;
struct test_attach_probe* skel;
size_t uprobe_offset;
ssize_t base_addr;
base_addr = get_base_addr();
if (CHECK(base_addr < 0, "get_base_addr",
"failed to find base addr: %zd", base_addr))
return;
uprobe_offset = get_uprobe_offset(&get_base_addr, base_addr);
skel = test_attach_probe__open_and_load();
if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
return;
if (CHECK(!skel->bss, "check_bss", ".bss wasn't mmap()-ed\n"))
goto cleanup;
kprobe_link = bpf_program__attach_kprobe(skel->progs.handle_kprobe,
false /* retprobe */,
SYS_NANOSLEEP_KPROBE_NAME);
if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
goto cleanup;
skel->links.handle_kprobe = kprobe_link;
kretprobe_link = bpf_program__attach_kprobe(skel->progs.handle_kretprobe,
true /* retprobe */,
SYS_NANOSLEEP_KPROBE_NAME);
if (!ASSERT_OK_PTR(kretprobe_link, "attach_kretprobe"))
goto cleanup;
skel->links.handle_kretprobe = kretprobe_link;
uprobe_link = bpf_program__attach_uprobe(skel->progs.handle_uprobe,
false /* retprobe */,
0 /* self pid */,
"/proc/self/exe",
uprobe_offset);
if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe"))
goto cleanup;
skel->links.handle_uprobe = uprobe_link;
uretprobe_link = bpf_program__attach_uprobe(skel->progs.handle_uretprobe,
true /* retprobe */,
-1 /* any pid */,
"/proc/self/exe",
uprobe_offset);
if (!ASSERT_OK_PTR(uretprobe_link, "attach_uretprobe"))
goto cleanup;
skel->links.handle_uretprobe = uretprobe_link;
/* trigger & validate kprobe && kretprobe */
usleep(1);
if (CHECK(skel->bss->kprobe_res != 1, "check_kprobe_res",
"wrong kprobe res: %d\n", skel->bss->kprobe_res))
goto cleanup;
if (CHECK(skel->bss->kretprobe_res != 2, "check_kretprobe_res",
"wrong kretprobe res: %d\n", skel->bss->kretprobe_res))
goto cleanup;
/* trigger & validate uprobe & uretprobe */
get_base_addr();
if (CHECK(skel->bss->uprobe_res != 3, "check_uprobe_res",
"wrong uprobe res: %d\n", skel->bss->uprobe_res))
goto cleanup;
if (CHECK(skel->bss->uretprobe_res != 4, "check_uretprobe_res",
"wrong uretprobe res: %d\n", skel->bss->uretprobe_res))
goto cleanup;
cleanup:
test_attach_probe__destroy(skel);
}
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