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Diffstat (limited to 'src/regress/lib/libc/sys/t_chroot.c')
-rw-r--r--src/regress/lib/libc/sys/t_chroot.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/src/regress/lib/libc/sys/t_chroot.c b/src/regress/lib/libc/sys/t_chroot.c
deleted file mode 100644
index fb65bacebd..0000000000
--- a/src/regress/lib/libc/sys/t_chroot.c
+++ /dev/null
@@ -1,318 +0,0 @@
1/* $OpenBSD: t_chroot.c,v 1.3 2021/12/13 16:56:48 deraadt Exp $ */
2/* $NetBSD: t_chroot.c,v 1.2 2017/01/10 22:36:29 christos Exp $ */
3
4/*-
5 * Copyright (c) 2011 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jukka Ruohonen.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include "macros.h"
34
35#include <sys/wait.h>
36#include <sys/stat.h>
37
38#include "atf-c.h"
39#include <errno.h>
40#include <fcntl.h>
41#include <limits.h>
42#include <pwd.h>
43#include <stdlib.h>
44#include <string.h>
45#include <unistd.h>
46
47ATF_TC(chroot_basic);
48ATF_TC_HEAD(chroot_basic, tc)
49{
50 atf_tc_set_md_var(tc, "descr", "A basic test of chroot(2)");
51 atf_tc_set_md_var(tc, "require.user", "root");
52}
53
54ATF_TC_BODY(chroot_basic, tc)
55{
56 char buf[PATH_MAX];
57 int fd, sta;
58 pid_t pid;
59
60 (void)memset(buf, '\0', sizeof(buf));
61 (void)getcwd(buf, sizeof(buf));
62 (void)strlcat(buf, "/dir", sizeof(buf));
63
64 ATF_REQUIRE(mkdir(buf, 0500) == 0);
65 ATF_REQUIRE(chdir(buf) == 0);
66
67 pid = fork();
68 ATF_REQUIRE(pid >= 0);
69
70 if (pid == 0) {
71
72 if (chroot(buf) != 0)
73 _exit(EXIT_FAILURE);
74
75 errno = 0;
76
77 if (chroot("/root") != -1)
78 _exit(EXIT_FAILURE);
79
80 if (errno != ENOENT)
81 _exit(EXIT_FAILURE);
82
83 fd = open("file", O_RDONLY | O_CREAT, 0600);
84
85 if (fd < 0)
86 _exit(EXIT_FAILURE);
87
88 if (close(fd) != 0)
89 _exit(EXIT_FAILURE);
90
91 _exit(EXIT_SUCCESS);
92 }
93
94 (void)wait(&sta);
95
96 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
97 atf_tc_fail("chroot(2) failed");
98
99 (void)chdir("/");
100 (void)strlcat(buf, "/file", sizeof(buf));
101
102 fd = open(buf, O_RDONLY);
103
104 if (fd < 0)
105 atf_tc_fail("chroot(2) did not change the root directory");
106
107 ATF_REQUIRE(close(fd) == 0);
108 ATF_REQUIRE(unlink(buf) == 0);
109}
110
111ATF_TC(chroot_err);
112ATF_TC_HEAD(chroot_err, tc)
113{
114 atf_tc_set_md_var(tc, "descr", "Test error conditions of chroot(2)");
115 atf_tc_set_md_var(tc, "require.user", "root");
116}
117
118ATF_TC_BODY(chroot_err, tc)
119{
120 char buf[PATH_MAX + 1];
121
122 (void)memset(buf, 'x', sizeof(buf));
123
124 errno = 0;
125 ATF_REQUIRE_ERRNO(ENAMETOOLONG, chroot(buf) == -1);
126
127 errno = 0;
128 ATF_REQUIRE_ERRNO(EFAULT, chroot((void *)-1) == -1);
129
130 errno = 0;
131 ATF_REQUIRE_ERRNO(ENOENT, chroot("/a/b/c/d/e/f/g/h/i/j") == -1);
132}
133
134ATF_TC(chroot_perm);
135ATF_TC_HEAD(chroot_perm, tc)
136{
137 atf_tc_set_md_var(tc, "descr", "Test permissions with chroot(2)");
138 atf_tc_set_md_var(tc, "require.user", "unprivileged");
139}
140
141ATF_TC_BODY(chroot_perm, tc)
142{
143 static char buf[LINE_MAX];
144 pid_t pid;
145 int sta;
146
147 (void)memset(buf, '\0', sizeof(buf));
148 ATF_REQUIRE(getcwd(buf, sizeof(buf)) != NULL);
149
150 pid = fork();
151 ATF_REQUIRE(pid >= 0);
152
153 if (pid == 0) {
154
155 errno = 0;
156
157 if (chroot(buf) != -1)
158 _exit(EXIT_FAILURE);
159
160 if (errno != EPERM)
161 _exit(EXIT_FAILURE);
162
163 _exit(EXIT_SUCCESS);
164 }
165
166 (void)wait(&sta);
167
168 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
169 atf_tc_fail("chroot(2) succeeded as unprivileged user");
170}
171
172ATF_TC(fchroot_basic);
173ATF_TC_HEAD(fchroot_basic, tc)
174{
175 atf_tc_set_md_var(tc, "descr", "A basic test of fchroot(2)");
176 atf_tc_set_md_var(tc, "require.user", "root");
177}
178
179ATF_TC_BODY(fchroot_basic, tc)
180{
181 char buf[PATH_MAX];
182 int fd, sta;
183 pid_t pid;
184
185 (void)memset(buf, '\0', sizeof(buf));
186 (void)getcwd(buf, sizeof(buf));
187 (void)strlcat(buf, "/dir", sizeof(buf));
188
189 ATF_REQUIRE(mkdir(buf, 0500) == 0);
190 ATF_REQUIRE(chdir(buf) == 0);
191
192 fd = open(buf, O_RDONLY);
193 ATF_REQUIRE(fd >= 0);
194
195 pid = fork();
196 ATF_REQUIRE(pid >= 0);
197
198 if (pid == 0) {
199
200 if (fchroot(fd) != 0)
201 _exit(EXIT_FAILURE);
202
203 if (close(fd) != 0)
204 _exit(EXIT_FAILURE);
205
206 fd = open("file", O_RDONLY | O_CREAT, 0600);
207
208 if (fd < 0)
209 _exit(EXIT_FAILURE);
210
211 if (close(fd) != 0)
212 _exit(EXIT_FAILURE);
213
214 _exit(EXIT_SUCCESS);
215 }
216
217 (void)wait(&sta);
218
219 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
220 atf_tc_fail("fchroot(2) failed");
221
222 (void)chdir("/");
223 (void)strlcat(buf, "/file", sizeof(buf));
224
225 fd = open(buf, O_RDONLY);
226
227 if (fd < 0)
228 atf_tc_fail("fchroot(2) did not change the root directory");
229
230 ATF_REQUIRE(close(fd) == 0);
231 ATF_REQUIRE(unlink(buf) == 0);
232}
233
234ATF_TC(fchroot_err);
235ATF_TC_HEAD(fchroot_err, tc)
236{
237 atf_tc_set_md_var(tc, "descr", "Test error conditions of fchroot(2)");
238 atf_tc_set_md_var(tc, "require.user", "root");
239}
240
241ATF_TC_BODY(fchroot_err, tc)
242{
243 int fd;
244
245 fd = open("/etc/passwd", O_RDONLY);
246 ATF_REQUIRE(fd >= 0);
247
248 errno = 0;
249 ATF_REQUIRE_ERRNO(EBADF, fchroot(-1) == -1);
250
251 errno = 0;
252 ATF_REQUIRE_ERRNO(ENOTDIR, fchroot(fd) == -1);
253
254 ATF_REQUIRE(close(fd) == 0);
255}
256
257ATF_TC(fchroot_perm);
258ATF_TC_HEAD(fchroot_perm, tc)
259{
260 atf_tc_set_md_var(tc, "descr", "Test permissions with fchroot(2)");
261 atf_tc_set_md_var(tc, "require.user", "root");
262}
263
264ATF_TC_BODY(fchroot_perm, tc)
265{
266 static char buf[LINE_MAX];
267 struct passwd *pw;
268 int fd, sta;
269 pid_t pid;
270
271 (void)memset(buf, '\0', sizeof(buf));
272 ATF_REQUIRE(getcwd(buf, sizeof(buf)) != NULL);
273
274 pw = getpwnam("nobody");
275 fd = open(buf, O_RDONLY);
276
277 ATF_REQUIRE(fd >= 0);
278 ATF_REQUIRE(pw != NULL);
279
280 pid = fork();
281 ATF_REQUIRE(pid >= 0);
282
283 if (pid == 0) {
284
285 (void)setuid(pw->pw_uid);
286
287 errno = 0;
288
289 if (fchroot(fd) != -1)
290 _exit(EXIT_FAILURE);
291
292 if (errno != EPERM)
293 _exit(EXIT_FAILURE);
294
295 _exit(EXIT_SUCCESS);
296 }
297
298 (void)wait(&sta);
299
300 if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
301 atf_tc_fail("fchroot(2) succeeded as unprivileged user");
302}
303
304ATF_TP_ADD_TCS(tp)
305{
306
307 ATF_TP_ADD_TC(tp, chroot_basic);
308 ATF_TP_ADD_TC(tp, chroot_err);
309 ATF_TP_ADD_TC(tp, chroot_perm);
310#ifndef __OpenBSD__
311 /* fchroot(2) not available */
312 ATF_TP_ADD_TC(tp, fchroot_basic);
313 ATF_TP_ADD_TC(tp, fchroot_err);
314 ATF_TP_ADD_TC(tp, fchroot_perm);
315#endif
316
317 return atf_no_error();
318}
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