1 // SPDX-License-Identifier: GPL-2.0
2 /* Converted from tools/testing/selftests/bpf/verifier/cgroup_inv_retcode.c */
3 
4 #include <linux/bpf.h>
5 #include <bpf/bpf_helpers.h>
6 #include "bpf_misc.h"
7 
8 SEC("cgroup/sock")
9 __description("bpf_exit with invalid return code. test1")
10 __failure __msg("smin=0 smax=4294967295 should have been in [0, 1]")
11 __naked void with_invalid_return_code_test1(void)
12 {
13 	asm volatile ("					\
14 	r0 = *(u32*)(r1 + 0);				\
15 	exit;						\
16 "	::: __clobber_all);
17 }
18 
19 SEC("cgroup/sock")
20 __description("bpf_exit with invalid return code. test2")
21 __success
22 __naked void with_invalid_return_code_test2(void)
23 {
24 	asm volatile ("					\
25 	r0 = *(u32*)(r1 + 0);				\
26 	r0 &= 1;					\
27 	exit;						\
28 "	::: __clobber_all);
29 }
30 
31 SEC("cgroup/sock")
32 __description("bpf_exit with invalid return code. test3")
33 __failure __msg("smin=0 smax=3 should have been in [0, 1]")
34 __naked void with_invalid_return_code_test3(void)
35 {
36 	asm volatile ("					\
37 	r0 = *(u32*)(r1 + 0);				\
38 	r0 &= 3;					\
39 	exit;						\
40 "	::: __clobber_all);
41 }
42 
43 SEC("cgroup/sock")
44 __description("bpf_exit with invalid return code. test4")
45 __success
46 __naked void with_invalid_return_code_test4(void)
47 {
48 	asm volatile ("					\
49 	r0 = 1;						\
50 	exit;						\
51 "	::: __clobber_all);
52 }
53 
54 SEC("cgroup/sock")
55 __description("bpf_exit with invalid return code. test5")
56 __failure __msg("smin=2 smax=2 should have been in [0, 1]")
57 __naked void with_invalid_return_code_test5(void)
58 {
59 	asm volatile ("					\
60 	r0 = 2;						\
61 	exit;						\
62 "	::: __clobber_all);
63 }
64 
65 SEC("cgroup/sock")
66 __description("bpf_exit with invalid return code. test6")
67 __failure __msg("R0 is not a known value (ctx)")
68 __naked void with_invalid_return_code_test6(void)
69 {
70 	asm volatile ("					\
71 	r0 = r1;					\
72 	exit;						\
73 "	::: __clobber_all);
74 }
75 
76 SEC("cgroup/sock")
77 __description("bpf_exit with invalid return code. test7")
78 __failure __msg("R0 has unknown scalar value should have been in [0, 1]")
79 __naked void with_invalid_return_code_test7(void)
80 {
81 	asm volatile ("					\
82 	r0 = *(u32*)(r1 + 0);				\
83 	r2 = *(u32*)(r1 + 4);				\
84 	r0 *= r2;					\
85 	exit;						\
86 "	::: __clobber_all);
87 }
88 
89 char _license[] SEC("license") = "GPL";
90