1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
3 
4 #include <test_progs.h>
5 #include <network_helpers.h>
6 
7 #include "local_kptr_stash.skel.h"
8 #include "local_kptr_stash_fail.skel.h"
test_local_kptr_stash_simple(void)9 static void test_local_kptr_stash_simple(void)
10 {
11 	LIBBPF_OPTS(bpf_test_run_opts, opts,
12 		    .data_in = &pkt_v4,
13 		    .data_size_in = sizeof(pkt_v4),
14 		    .repeat = 1,
15 	);
16 	struct local_kptr_stash *skel;
17 	int ret;
18 
19 	skel = local_kptr_stash__open_and_load();
20 	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
21 		return;
22 
23 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_rb_nodes), &opts);
24 	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
25 	ASSERT_OK(opts.retval, "local_kptr_stash_add_nodes retval");
26 
27 	local_kptr_stash__destroy(skel);
28 }
29 
test_local_kptr_stash_plain(void)30 static void test_local_kptr_stash_plain(void)
31 {
32 	LIBBPF_OPTS(bpf_test_run_opts, opts,
33 		    .data_in = &pkt_v4,
34 		    .data_size_in = sizeof(pkt_v4),
35 		    .repeat = 1,
36 	);
37 	struct local_kptr_stash *skel;
38 	int ret;
39 
40 	skel = local_kptr_stash__open_and_load();
41 	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
42 		return;
43 
44 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_plain), &opts);
45 	ASSERT_OK(ret, "local_kptr_stash_add_plain run");
46 	ASSERT_OK(opts.retval, "local_kptr_stash_add_plain retval");
47 
48 	local_kptr_stash__destroy(skel);
49 }
50 
test_local_kptr_stash_local_with_root(void)51 static void test_local_kptr_stash_local_with_root(void)
52 {
53 	LIBBPF_OPTS(bpf_test_run_opts, opts,
54 		    .data_in = &pkt_v4,
55 		    .data_size_in = sizeof(pkt_v4),
56 		    .repeat = 1,
57 	);
58 	struct local_kptr_stash *skel;
59 	int ret;
60 
61 	skel = local_kptr_stash__open_and_load();
62 	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
63 		return;
64 
65 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_local_with_root), &opts);
66 	ASSERT_OK(ret, "local_kptr_stash_add_local_with_root run");
67 	ASSERT_OK(opts.retval, "local_kptr_stash_add_local_with_root retval");
68 
69 	local_kptr_stash__destroy(skel);
70 }
71 
test_local_kptr_stash_unstash(void)72 static void test_local_kptr_stash_unstash(void)
73 {
74 	LIBBPF_OPTS(bpf_test_run_opts, opts,
75 		    .data_in = &pkt_v4,
76 		    .data_size_in = sizeof(pkt_v4),
77 		    .repeat = 1,
78 	);
79 	struct local_kptr_stash *skel;
80 	int ret;
81 
82 	skel = local_kptr_stash__open_and_load();
83 	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
84 		return;
85 
86 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_rb_nodes), &opts);
87 	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
88 	ASSERT_OK(opts.retval, "local_kptr_stash_add_nodes retval");
89 
90 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.unstash_rb_node), &opts);
91 	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
92 	ASSERT_EQ(opts.retval, 42, "local_kptr_stash_add_nodes retval");
93 
94 	local_kptr_stash__destroy(skel);
95 }
96 
test_refcount_acquire_without_unstash(void)97 static void test_refcount_acquire_without_unstash(void)
98 {
99 	LIBBPF_OPTS(bpf_test_run_opts, opts,
100 		    .data_in = &pkt_v4,
101 		    .data_size_in = sizeof(pkt_v4),
102 		    .repeat = 1,
103 	);
104 	struct local_kptr_stash *skel;
105 	int ret;
106 
107 	skel = local_kptr_stash__open_and_load();
108 	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
109 		return;
110 
111 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.refcount_acquire_without_unstash),
112 				     &opts);
113 	ASSERT_OK(ret, "refcount_acquire_without_unstash run");
114 	ASSERT_EQ(opts.retval, 2, "refcount_acquire_without_unstash retval");
115 
116 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_refcounted_node), &opts);
117 	ASSERT_OK(ret, "stash_refcounted_node run");
118 	ASSERT_OK(opts.retval, "stash_refcounted_node retval");
119 
120 	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.refcount_acquire_without_unstash),
121 				     &opts);
122 	ASSERT_OK(ret, "refcount_acquire_without_unstash (2) run");
123 	ASSERT_EQ(opts.retval, 42, "refcount_acquire_without_unstash (2) retval");
124 
125 	local_kptr_stash__destroy(skel);
126 }
127 
test_local_kptr_stash_fail(void)128 static void test_local_kptr_stash_fail(void)
129 {
130 	RUN_TESTS(local_kptr_stash_fail);
131 }
132 
test_local_kptr_stash(void)133 void test_local_kptr_stash(void)
134 {
135 	if (test__start_subtest("local_kptr_stash_simple"))
136 		test_local_kptr_stash_simple();
137 	if (test__start_subtest("local_kptr_stash_plain"))
138 		test_local_kptr_stash_plain();
139 	if (test__start_subtest("local_kptr_stash_local_with_root"))
140 		test_local_kptr_stash_local_with_root();
141 	if (test__start_subtest("local_kptr_stash_unstash"))
142 		test_local_kptr_stash_unstash();
143 	if (test__start_subtest("refcount_acquire_without_unstash"))
144 		test_refcount_acquire_without_unstash();
145 	if (test__start_subtest("local_kptr_stash_fail"))
146 		test_local_kptr_stash_fail();
147 }
148