tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/bpf.h>
4#include <bpf/bpf_helpers.h>
5#include "bpf_misc.h"
6
7SEC("lsm/file_alloc_security")
8__description("lsm bpf prog with -4095~0 retval. test 1")
9__success
10__naked int errno_zero_retval_test1(void *ctx)
11{
12 asm volatile (
13 "r0 = 0;"
14 "exit;"
15 ::: __clobber_all);
16}
17
18SEC("lsm/file_alloc_security")
19__description("lsm bpf prog with -4095~0 retval. test 2")
20__success
21__naked int errno_zero_retval_test2(void *ctx)
22{
23 asm volatile (
24 "r0 = -4095;"
25 "exit;"
26 ::: __clobber_all);
27}
28
29SEC("lsm/file_mprotect")
30__description("lsm bpf prog with -4095~0 retval. test 4")
31__failure __msg("R0 has smin=-4096 smax=-4096 should have been in [-4095, 0]")
32__naked int errno_zero_retval_test4(void *ctx)
33{
34 asm volatile (
35 "r0 = -4096;"
36 "exit;"
37 ::: __clobber_all);
38}
39
40SEC("lsm/file_mprotect")
41__description("lsm bpf prog with -4095~0 retval. test 5")
42__failure __msg("R0 has smin=4096 smax=4096 should have been in [-4095, 0]")
43__naked int errno_zero_retval_test5(void *ctx)
44{
45 asm volatile (
46 "r0 = 4096;"
47 "exit;"
48 ::: __clobber_all);
49}
50
51SEC("lsm/file_mprotect")
52__description("lsm bpf prog with -4095~0 retval. test 6")
53__failure __msg("R0 has smin=1 smax=1 should have been in [-4095, 0]")
54__naked int errno_zero_retval_test6(void *ctx)
55{
56 asm volatile (
57 "r0 = 1;"
58 "exit;"
59 ::: __clobber_all);
60}
61
62SEC("lsm/audit_rule_known")
63__description("lsm bpf prog with bool retval. test 1")
64__success
65__naked int bool_retval_test1(void *ctx)
66{
67 asm volatile (
68 "r0 = 1;"
69 "exit;"
70 ::: __clobber_all);
71}
72
73SEC("lsm/audit_rule_known")
74__description("lsm bpf prog with bool retval. test 2")
75__success
76__success
77__naked int bool_retval_test2(void *ctx)
78{
79 asm volatile (
80 "r0 = 0;"
81 "exit;"
82 ::: __clobber_all);
83}
84
85SEC("lsm/audit_rule_known")
86__description("lsm bpf prog with bool retval. test 3")
87__failure __msg("R0 has smin=-1 smax=-1 should have been in [0, 1]")
88__naked int bool_retval_test3(void *ctx)
89{
90 asm volatile (
91 "r0 = -1;"
92 "exit;"
93 ::: __clobber_all);
94}
95
96SEC("lsm/audit_rule_known")
97__description("lsm bpf prog with bool retval. test 4")
98__failure __msg("R0 has smin=2 smax=2 should have been in [0, 1]")
99__naked int bool_retval_test4(void *ctx)
100{
101 asm volatile (
102 "r0 = 2;"
103 "exit;"
104 ::: __clobber_all);
105}
106
107SEC("lsm/file_free_security")
108__success
109__description("lsm bpf prog with void retval. test 1")
110__naked int void_retval_test1(void *ctx)
111{
112 asm volatile (
113 "r0 = -4096;"
114 "exit;"
115 ::: __clobber_all);
116}
117
118SEC("lsm/file_free_security")
119__success
120__description("lsm bpf prog with void retval. test 2")
121__naked int void_retval_test2(void *ctx)
122{
123 asm volatile (
124 "r0 = 4096;"
125 "exit;"
126 ::: __clobber_all);
127}
128
129SEC("lsm/getprocattr")
130__description("lsm disabled hook: getprocattr")
131__failure __msg("points to disabled hook")
132__naked int disabled_hook_test1(void *ctx)
133{
134 asm volatile (
135 "r0 = 0;"
136 "exit;"
137 ::: __clobber_all);
138}
139
140SEC("lsm/setprocattr")
141__description("lsm disabled hook: setprocattr")
142__failure __msg("points to disabled hook")
143__naked int disabled_hook_test2(void *ctx)
144{
145 asm volatile (
146 "r0 = 0;"
147 "exit;"
148 ::: __clobber_all);
149}
150
151SEC("lsm/ismaclabel")
152__description("lsm disabled hook: ismaclabel")
153__failure __msg("points to disabled hook")
154__naked int disabled_hook_test3(void *ctx)
155{
156 asm volatile (
157 "r0 = 0;"
158 "exit;"
159 ::: __clobber_all);
160}
161
162char _license[] SEC("license") = "GPL";