From 5712174c5c9e3d684ad05d4aaed1e14acda4bb74 Mon Sep 17 00:00:00 2001
From: Andrii Nakryiko <andriin@fb.com>
Date: Thu, 25 Jun 2020 16:26:29 -0700
Subject: selftests/bpf: Test auto-load disabling logic for BPF programs
Validate that BPF object with broken (in multiple ways) BPF program can still
be successfully loaded, if that broken BPF program is disabled.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200625232629.3444003-3-andriin@fb.com
---
tools/testing/selftests/bpf/prog_tests/autoload.c | 41 +++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 tools/testing/selftests/bpf/prog_tests/autoload.c
(limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
diff --git a/tools/testing/selftests/bpf/prog_tests/autoload.c b/tools/testing/selftests/bpf/prog_tests/autoload.c
new file mode 100644
index 000000000000..3693f7d133eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/autoload.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <time.h>
+#include "test_autoload.skel.h"
+
+void test_autoload(void)
+{
+ int duration = 0, err;
+ struct test_autoload* skel;
+
+ skel = test_autoload__open_and_load();
+ /* prog3 should be broken */
+ if (CHECK(skel, "skel_open_and_load", "unexpected success\n"))
+ goto cleanup;
+
+ skel = test_autoload__open();
+ if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+ goto cleanup;
+
+ /* don't load prog3 */
+ bpf_program__set_autoload(skel->progs.prog3, false);
+
+ err = test_autoload__load(skel);
+ if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
+ goto cleanup;
+
+ err = test_autoload__attach(skel);
+ if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+ goto cleanup;
+
+ usleep(1);
+
+ CHECK(!skel->bss->prog1_called, "prog1", "not called\n");
+ CHECK(!skel->bss->prog2_called, "prog2", "not called\n");
+ CHECK(skel->bss->prog3_called, "prog3", "called?!\n");
+
+cleanup:
+ test_autoload__destroy(skel);
+}
--
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