xref: /linux/tools/testing/selftests/bpf/progs/verifier_sock_addr.c (revision 55d0969c451159cff86949b38c39171cab962069) 
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2024 Google LLC */
3 
4 #include <linux/bpf.h>
5 #include <bpf/bpf_helpers.h>
6 #include <bpf_sockopt_helpers.h>
7 #include "bpf_misc.h"
8 
9 SEC("cgroup/recvmsg4")
10 __success
11 int recvmsg4_good_return_code(struct bpf_sock_addr *ctx)
12 {
13 	return 1;
14 }
15 
16 SEC("cgroup/recvmsg4")
17 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
18 int recvmsg4_bad_return_code(struct bpf_sock_addr *ctx)
19 {
20 	return 0;
21 }
22 
23 SEC("cgroup/recvmsg6")
24 __success
25 int recvmsg6_good_return_code(struct bpf_sock_addr *ctx)
26 {
27 	return 1;
28 }
29 
30 SEC("cgroup/recvmsg6")
31 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
32 int recvmsg6_bad_return_code(struct bpf_sock_addr *ctx)
33 {
34 	return 0;
35 }
36 
37 SEC("cgroup/recvmsg_unix")
38 __success
39 int recvmsg_unix_good_return_code(struct bpf_sock_addr *ctx)
40 {
41 	return 1;
42 }
43 
44 SEC("cgroup/recvmsg_unix")
45 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
46 int recvmsg_unix_bad_return_code(struct bpf_sock_addr *ctx)
47 {
48 	return 0;
49 }
50 
51 SEC("cgroup/sendmsg4")
52 __success
53 int sendmsg4_good_return_code_0(struct bpf_sock_addr *ctx)
54 {
55 	return 0;
56 }
57 
58 SEC("cgroup/sendmsg4")
59 __success
60 int sendmsg4_good_return_code_1(struct bpf_sock_addr *ctx)
61 {
62 	return 1;
63 }
64 
65 SEC("cgroup/sendmsg4")
66 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
67 int sendmsg4_bad_return_code(struct bpf_sock_addr *ctx)
68 {
69 	return 2;
70 }
71 
72 SEC("cgroup/sendmsg6")
73 __success
74 int sendmsg6_good_return_code_0(struct bpf_sock_addr *ctx)
75 {
76 	return 0;
77 }
78 
79 SEC("cgroup/sendmsg6")
80 __success
81 int sendmsg6_good_return_code_1(struct bpf_sock_addr *ctx)
82 {
83 	return 1;
84 }
85 
86 SEC("cgroup/sendmsg6")
87 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
88 int sendmsg6_bad_return_code(struct bpf_sock_addr *ctx)
89 {
90 	return 2;
91 }
92 
93 SEC("cgroup/sendmsg_unix")
94 __success
95 int sendmsg_unix_good_return_code_0(struct bpf_sock_addr *ctx)
96 {
97 	return 0;
98 }
99 
100 SEC("cgroup/sendmsg_unix")
101 __success
102 int sendmsg_unix_good_return_code_1(struct bpf_sock_addr *ctx)
103 {
104 	return 1;
105 }
106 
107 SEC("cgroup/sendmsg_unix")
108 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
109 int sendmsg_unix_bad_return_code(struct bpf_sock_addr *ctx)
110 {
111 	return 2;
112 }
113 
114 SEC("cgroup/getpeername4")
115 __success
116 int getpeername4_good_return_code(struct bpf_sock_addr *ctx)
117 {
118 	return 1;
119 }
120 
121 SEC("cgroup/getpeername4")
122 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
123 int getpeername4_bad_return_code(struct bpf_sock_addr *ctx)
124 {
125 	return 0;
126 }
127 
128 SEC("cgroup/getpeername6")
129 __success
130 int getpeername6_good_return_code(struct bpf_sock_addr *ctx)
131 {
132 	return 1;
133 }
134 
135 SEC("cgroup/getpeername6")
136 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
137 int getpeername6_bad_return_code(struct bpf_sock_addr *ctx)
138 {
139 	return 0;
140 }
141 
142 SEC("cgroup/getpeername_unix")
143 __success
144 int getpeername_unix_good_return_code(struct bpf_sock_addr *ctx)
145 {
146 	return 1;
147 }
148 
149 SEC("cgroup/getpeername_unix")
150 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
151 int getpeername_unix_bad_return_code(struct bpf_sock_addr *ctx)
152 {
153 	return 0;
154 }
155 
156 SEC("cgroup/getsockname4")
157 __success
158 int getsockname4_good_return_code(struct bpf_sock_addr *ctx)
159 {
160 	return 1;
161 }
162 
163 SEC("cgroup/getsockname4")
164 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
165 int getsockname4_bad_return_code(struct bpf_sock_addr *ctx)
166 {
167 	return 0;
168 }
169 
170 SEC("cgroup/getsockname6")
171 __success
172 int getsockname6_good_return_code(struct bpf_sock_addr *ctx)
173 {
174 	return 1;
175 }
176 
177 SEC("cgroup/getsockname6")
178 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
179 int getsockname6_bad_return_code(struct bpf_sock_addr *ctx)
180 {
181 	return 0;
182 }
183 
184 SEC("cgroup/getsockname_unix")
185 __success
186 int getsockname_unix_good_return_code(struct bpf_sock_addr *ctx)
187 {
188 	return 1;
189 }
190 
191 SEC("cgroup/getsockname_unix")
192 __failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
193 int getsockname_unix_unix_bad_return_code(struct bpf_sock_addr *ctx)
194 {
195 	return 0;
196 }
197 
198 SEC("cgroup/bind4")
199 __success
200 int bind4_good_return_code_0(struct bpf_sock_addr *ctx)
201 {
202 	return 0;
203 }
204 
205 SEC("cgroup/bind4")
206 __success
207 int bind4_good_return_code_1(struct bpf_sock_addr *ctx)
208 {
209 	return 1;
210 }
211 
212 SEC("cgroup/bind4")
213 __success
214 int bind4_good_return_code_2(struct bpf_sock_addr *ctx)
215 {
216 	return 2;
217 }
218 
219 SEC("cgroup/bind4")
220 __success
221 int bind4_good_return_code_3(struct bpf_sock_addr *ctx)
222 {
223 	return 3;
224 }
225 
226 SEC("cgroup/bind4")
227 __failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]")
228 int bind4_bad_return_code(struct bpf_sock_addr *ctx)
229 {
230 	return 4;
231 }
232 
233 SEC("cgroup/bind6")
234 __success
235 int bind6_good_return_code_0(struct bpf_sock_addr *ctx)
236 {
237 	return 0;
238 }
239 
240 SEC("cgroup/bind6")
241 __success
242 int bind6_good_return_code_1(struct bpf_sock_addr *ctx)
243 {
244 	return 1;
245 }
246 
247 SEC("cgroup/bind6")
248 __success
249 int bind6_good_return_code_2(struct bpf_sock_addr *ctx)
250 {
251 	return 2;
252 }
253 
254 SEC("cgroup/bind6")
255 __success
256 int bind6_good_return_code_3(struct bpf_sock_addr *ctx)
257 {
258 	return 3;
259 }
260 
261 SEC("cgroup/bind6")
262 __failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]")
263 int bind6_bad_return_code(struct bpf_sock_addr *ctx)
264 {
265 	return 4;
266 }
267 
268 SEC("cgroup/connect4")
269 __success
270 int connect4_good_return_code_0(struct bpf_sock_addr *ctx)
271 {
272 	return 0;
273 }
274 
275 SEC("cgroup/connect4")
276 __success
277 int connect4_good_return_code_1(struct bpf_sock_addr *ctx)
278 {
279 	return 1;
280 }
281 
282 SEC("cgroup/connect4")
283 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
284 int connect4_bad_return_code(struct bpf_sock_addr *ctx)
285 {
286 	return 2;
287 }
288 
289 SEC("cgroup/connect6")
290 __success
291 int connect6_good_return_code_0(struct bpf_sock_addr *ctx)
292 {
293 	return 0;
294 }
295 
296 SEC("cgroup/connect6")
297 __success
298 int connect6_good_return_code_1(struct bpf_sock_addr *ctx)
299 {
300 	return 1;
301 }
302 
303 SEC("cgroup/connect6")
304 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
305 int connect6_bad_return_code(struct bpf_sock_addr *ctx)
306 {
307 	return 2;
308 }
309 
310 SEC("cgroup/connect_unix")
311 __success
312 int connect_unix_good_return_code_0(struct bpf_sock_addr *ctx)
313 {
314 	return 0;
315 }
316 
317 SEC("cgroup/connect_unix")
318 __success
319 int connect_unix_good_return_code_1(struct bpf_sock_addr *ctx)
320 {
321 	return 1;
322 }
323 
324 SEC("cgroup/connect_unix")
325 __failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
326 int connect_unix_bad_return_code(struct bpf_sock_addr *ctx)
327 {
328 	return 2;
329 }
330 
331 char _license[] SEC("license") = "GPL";
332